From LANIER.R.A-@smtpgty.bwi.wec.com Tue Jun 04 07:17:12 1996 Received: from tron.bwi.wec.com (tron.bwi.wec.com [129.228.4.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id HAA26786 for ; Tue, 4 Jun 1996 07:17:09 -0500 (CDT) Received: from smtpgty.bwi.wec.com by tron.bwi.wec.com; (5.65/1.1.8.2/31May95-0229PM) id AA15322; Tue, 4 Jun 1996 08:03:23 -0400 Received: from ccMail by smtpgty.bwi.wec.com (IMA Internet Exchange 2.0 Enterprise) id 1B429840; Tue, 4 Jun 96 08:18:12 -0400 Mime-Version: 1.0 Date: Tue, 4 Jun 1996 07:52:35 -0400 Message-Id: <1B429840.1858@smtpgty.bwi.wec.com> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) Subject: RF Design Article To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Can anyone get me a copy of the following article?: "An Improved Tau-Dither Technique for Spread Spectrum Code Tracking" RF Design, December 1991 pp.49-55 I would really appreciate it if you can. Tony, KE4ATO From LANIER.R.A-@smtpgty.bwi.wec.com Wed Jun 05 08:47:49 1996 Received: from tron.bwi.wec.com (tron.bwi.wec.com [129.228.4.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id IAA27316 for ; Wed, 5 Jun 1996 08:47:47 -0500 (CDT) Received: from smtpgty.bwi.wec.com by tron.bwi.wec.com; (5.65/1.1.8.2/31May95-0229PM) id AA29914; Wed, 5 Jun 1996 09:45:32 -0400 Received: from ccMail by smtpgty.bwi.wec.com (IMA Internet Exchange 2.0 Enterprise) id 1B58F730; Wed, 5 Jun 96 09:45:23 -0400 Mime-Version: 1.0 Date: Wed, 5 Jun 1996 09:46:09 -0400 Message-Id: <1B58F730.1858@smtpgty.bwi.wec.com> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) Subject: Sine wave PROM To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part I am trying to locate information on generating a sine wave look-up table using C. I had a magazine article (Radio Electronics) that described using a PROM containing the sine wave data. The data was generated using a C program. However, I can't find the article! Can someone help with this problem? 73s de Tony, KE4ATO From Gordon_Dey@Software.Mitel.COM Wed Jun 05 14:53:06 1996 Received: from cygnus.software.mitel.com (newgate.mitel.com [198.53.180.100]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA10132 for ; Wed, 5 Jun 1996 14:52:54 -0500 (CDT) Received: from mitel.mitel.com (mitel.mitel.com [134.199.27.52]) by cygnus with SMTP (DuhMail/2.0) id LAA15601; Wed, 5 Jun 1996 11:37:50 -0400 Received: from Software.Mitel.COM by Mitel.COM (4.1/SMI-4.1) id AA20272; Wed, 5 Jun 96 11:35:06 EDT Received: from msnm06.software by Software.Mitel.COM (4.1/SMI-4.0) id AA04477; Wed, 5 Jun 96 11:35:04 EDT Date: Wed, 5 Jun 96 11:35:04 EDT From: Gordon_Dey@Software.Mitel.COM (Gordon Dey) Message-Id: <9606051535.AA04477@Software.Mitel.COM> To: ss@tapr.org Subject: Re: [SS:308] Sine wave PROM Just off the top of my head, BF&1 (Brute Force and Ignorance) maybe you could use something like this: #include #include int main() { double d_theta; double A; double DC_offset; double value; int steps; int i; steps=8; A=255; DC_offset=0.5*A; d_theta=M_PI*2/steps; for(i=0;i; Thu, 13 Jun 1996 14:26:12 -0500 (CDT) Message-Id: <199606131926.OAA04865@tapr.org> Received: from vincent.rmcs.cranfield.ac.uk by gw.rmcs.cranfield.ac.uk with SMTP; Thu, 13 Jun 1996 20:26:03 +0100 (BST) Comments: Authenticated sender is From: "James A Vincent" To: ss@tapr.org Date: Thu, 13 Jun 1996 19:26:31 0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: PN Code Generation Article CC: akestel@mrj.com Priority: normal X-mailer: Pegasus Mail for Windows (v2.31) I have recently read a very good (practical and light theory) article on Pseudorandom Codes, their generation and uses. For those interested it is - Pseudo noise sequences for engineers by RN Mutagi April 1996 Volume 8 Number 2 Electronics & Communication Engineering Journal of the IEE I'd recommend it ! James Vincent G1PVZ From LANIER.R.A-@smtpgty.bwi.wec.com Mon Jun 17 07:25:57 1996 Received: from tron.bwi.wec.com (tron.bwi.wec.com [129.228.4.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id HAA09672; Mon, 17 Jun 1996 07:25:51 -0500 (CDT) Received: from smtpgty.bwi.wec.com by tron.bwi.wec.com; (5.65/1.1.8.2/31May95-0229PM) id AA24688; Mon, 17 Jun 1996 07:46:00 -0400 Received: from ccMail by smtpgty.bwi.wec.com (IMA Internet Exchange 2.0 Enterprise) id 1C54EE50; Mon, 17 Jun 96 08:26:13 -0400 Mime-Version: 1.0 Date: Mon, 17 Jun 1996 08:16:07 -0400 Message-Id: <1C54EE50.1858@smtpgty.bwi.wec.com> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) To: hfsig@tapr.org, ss@tapr.org Subject: Sinewave generator source code Content-Type: multipart/mixed; boundary="IMA.Boundary.273410538" --IMA.Boundary.273410538 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part For what its worth, I found the article I was looking for (Radio Electronics, October 1991). The author used a C program to generate the data for the EPROM feeding into the DAC. His source code is shown below. I also attached a sample output file to this note. The EPROM is a standard 2716. Of course, the code can be modified to suit your needs. I intend to use this to produce a LUT (Look Up Table) inside a Xilinx FPGA. I want to use the LUT as the basis for a QPSK modulator. If I can feed serial data into the Xilinx, I can then produce I and Q components and use these as inputs into a custom up/down counter. The output of the counter will feed into the LUT. The output of the LUT would then feed into an external DAC. I'm not sure if this can work, but I will anyone who cares about this now what results I came up with. 73s de Tony, KE4ATO /* This program calculates the value of the sine function offset so that the 4th and 1st quadrants cause a code from 0 to 255. Code is generated to fill a 2048 byte prom (2716 or equivalent) for a full circle of 2*pi radians. Other size memory may be used by changing the value of bytes in the declaration table. */ #include #include main () { double p=0; /* phase input to sine function */ double S=0; /* output value of the true sine function */ int s; /* amplitude truncated to 8 bits */ double sin(); /* true sine function */ double pi=3.141592654; int addr=0; /* address of EPROM */ int bytes=2048; /* size of EPROM in bytes */ printf(" 0 1 2 3 4 5 6 7 8"); printf(" 9 A B C D E F \n"); while (addr < bytes) { if (addr % 16 == 0) printf("\n%4x ", addr); p = 2.0*pi*( (double) addr)/( (double) bytes); S = 127.5*(1.0 + sin(p - pi/2.0)); /* gives 0 at -90 deg */ s = ( (int) S); /* convert to integer */ if (S - ( (double) s) >= 0.5) /* rounds if necessary */ s++; printf(" %2x", s); addr++; /* increment address */ } return (0); } --IMA.Boundary.273410538 Content-Type: text/basic; name="output.txt" Content-Transfer-Encoding: 7bit Content-Description: MS-DOS text file Content-Disposition: attachment; filename="output.txt" 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 20 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 30 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 40 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 50 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 60 5 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 70 7 8 8 8 8 8 8 8 9 9 9 9 9 9 9 a 80 a a a a a a b b b b b b c c c c 90 c c d d d d d d e e e e e f f f a0 f f f 10 10 10 10 10 11 11 11 11 11 12 12 12 b0 12 12 13 13 13 13 13 14 14 14 14 14 15 15 15 15 c0 15 16 16 16 16 17 17 17 17 17 18 18 18 18 19 19 d0 19 19 1a 1a 1a 1a 1b 1b 1b 1b 1b 1c 1c 1c 1c 1d e0 1d 1d 1d 1e 1e 1e 1e 1f 1f 1f 1f 20 20 20 21 21 f0 21 21 22 22 22 22 23 23 23 23 24 24 24 25 25 25 100 25 26 26 26 26 27 27 27 28 28 28 28 29 29 29 2a 110 2a 2a 2a 2b 2b 2b 2c 2c 2c 2d 2d 2d 2d 2e 2e 2e 120 2f 2f 2f 30 30 30 30 31 31 31 32 32 32 33 33 33 130 34 34 34 34 35 35 35 36 36 36 37 37 37 38 38 38 140 39 39 39 3a 3a 3a 3b 3b 3b 3c 3c 3c 3d 3d 3d 3e 150 3e 3e 3f 3f 3f 40 40 40 41 41 41 42 42 42 43 43 160 43 44 44 44 45 45 45 46 46 47 47 47 48 48 48 49 170 49 49 4a 4a 4a 4b 4b 4b 4c 4c 4d 4d 4d 4e 4e 4e 180 4f 4f 4f 50 50 51 51 51 52 52 52 53 53 53 54 54 190 55 55 55 56 56 56 57 57 58 58 58 59 59 59 5a 5a 1a0 5a 5b 5b 5c 5c 5c 5d 5d 5d 5e 5e 5f 5f 5f 60 60 1b0 61 61 61 62 62 62 63 63 64 64 64 65 65 65 66 66 1c0 67 67 67 68 68 69 69 69 6a 6a 6a 6b 6b 6c 6c 6c 1d0 6d 6d 6e 6e 6e 6f 6f 70 70 70 71 71 71 72 72 73 1e0 73 73 74 74 75 75 75 76 76 77 77 77 78 78 78 79 1f0 79 7a 7a 7a 7b 7b 7c 7c 7c 7d 7d 7e 7e 7e 7f 7f 200 80 80 80 81 81 81 82 82 83 83 83 84 84 85 85 85 210 86 86 87 87 87 88 88 88 89 89 8a 8a 8a 8b 8b 8c 220 8c 8c 8d 8d 8e 8e 8e 8f 8f 8f 90 90 91 91 91 92 230 92 93 93 93 94 94 95 95 95 96 96 96 97 97 98 98 240 98 99 99 9a 9a 9a 9b 9b 9b 9c 9c 9d 9d 9d 9e 9e 250 9e 9f 9f a0 a0 a0 a1 a1 a2 a2 a2 a3 a3 a3 a4 a4 260 a5 a5 a5 a6 a6 a6 a7 a7 a7 a8 a8 a9 a9 a9 aa aa 270 aa ab ab ac ac ac ad ad ad ae ae ae af af b0 b0 280 b0 b1 b1 b1 b2 b2 b2 b3 b3 b4 b4 b4 b5 b5 b5 b6 290 b6 b6 b7 b7 b7 b8 b8 b8 b9 b9 ba ba ba bb bb bb 2a0 bc bc bc bd bd bd be be be bf bf bf c0 c0 c0 c1 2b0 c1 c1 c2 c2 c2 c3 c3 c3 c4 c4 c4 c5 c5 c5 c6 c6 2c0 c6 c7 c7 c7 c8 c8 c8 c9 c9 c9 ca ca ca cb cb cb 2d0 cb cc cc cc cd cd cd ce ce ce cf cf cf cf d0 d0 2e0 d0 d1 d1 d1 d2 d2 d2 d2 d3 d3 d3 d4 d4 d4 d5 d5 2f0 d5 d5 d6 d6 d6 d7 d7 d7 d7 d8 d8 d8 d9 d9 d9 d9 300 da da da da db db db dc dc dc dc dd dd dd dd de 310 de de de df df df e0 e0 e0 e0 e1 e1 e1 e1 e2 e2 320 e2 e2 e3 e3 e3 e3 e4 e4 e4 e4 e4 e5 e5 e5 e5 e6 330 e6 e6 e6 e7 e7 e7 e7 e8 e8 e8 e8 e8 e9 e9 e9 e9 340 ea ea ea ea ea eb eb eb eb eb ec ec ec ec ec ed 350 ed ed ed ed ee ee ee ee ee ef ef ef ef ef f0 f0 360 f0 f0 f0 f0 f1 f1 f1 f1 f1 f2 f2 f2 f2 f2 f2 f3 370 f3 f3 f3 f3 f3 f4 f4 f4 f4 f4 f4 f5 f5 f5 f5 f5 380 f5 f5 f6 f6 f6 f6 f6 f6 f6 f7 f7 f7 f7 f7 f7 f7 390 f8 f8 f8 f8 f8 f8 f8 f8 f9 f9 f9 f9 f9 f9 f9 f9 3a0 fa fa fa fa fa fa fa fa fa fa fb fb fb fb fb fb 3b0 fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc 3c0 fd fd fd fd fd fd fd fd fd fd fd fd fd fd fe fe 3d0 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe 3e0 fe fe fe fe ff ff ff ff ff ff ff ff ff ff ff ff 3f0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 400 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 410 ff ff ff ff ff ff ff ff ff ff ff ff ff fe fe fe 420 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe 430 fe fe fe fd fd fd fd fd fd fd fd fd fd fd fd fd 440 fd fc fc fc fc fc fc fc fc fc fc fc fc fb fb fb 450 fb fb fb fb fb fb fb fa fa fa fa fa fa fa fa fa 460 fa f9 f9 f9 f9 f9 f9 f9 f9 f8 f8 f8 f8 f8 f8 f8 470 f8 f7 f7 f7 f7 f7 f7 f7 f6 f6 f6 f6 f6 f6 f6 f5 480 f5 f5 f5 f5 f5 f5 f4 f4 f4 f4 f4 f4 f3 f3 f3 f3 490 f3 f3 f2 f2 f2 f2 f2 f2 f1 f1 f1 f1 f1 f0 f0 f0 4a0 f0 f0 f0 ef ef ef ef ef ee ee ee ee ee ed ed ed 4b0 ed ed ec ec ec ec ec eb eb eb eb eb ea ea ea ea 4c0 ea e9 e9 e9 e9 e8 e8 e8 e8 e8 e7 e7 e7 e7 e6 e6 4d0 e6 e6 e5 e5 e5 e5 e4 e4 e4 e4 e4 e3 e3 e3 e3 e2 4e0 e2 e2 e2 e1 e1 e1 e1 e0 e0 e0 e0 df df df de de 4f0 de de dd dd dd dd dc dc dc dc db db db da da da 500 da d9 d9 d9 d9 d8 d8 d8 d7 d7 d7 d7 d6 d6 d6 d5 510 d5 d5 d5 d4 d4 d4 d3 d3 d3 d2 d2 d2 d2 d1 d1 d1 520 d0 d0 d0 cf cf cf cf ce ce ce cd cd cd cc cc cc 530 cb cb cb cb ca ca ca c9 c9 c9 c8 c8 c8 c7 c7 c7 540 c6 c6 c6 c5 c5 c5 c4 c4 c4 c3 c3 c3 c2 c2 c2 c1 550 c1 c1 c0 c0 c0 bf bf bf be be be bd bd bd bc bc 560 bc bb bb bb ba ba ba b9 b9 b8 b8 b8 b7 b7 b7 b6 570 b6 b6 b5 b5 b5 b4 b4 b4 b3 b3 b2 b2 b2 b1 b1 b1 580 b0 b0 b0 af af ae ae ae ad ad ad ac ac ac ab ab 590 aa aa aa a9 a9 a9 a8 a8 a7 a7 a7 a6 a6 a6 a5 a5 5a0 a5 a4 a4 a3 a3 a3 a2 a2 a2 a1 a1 a0 a0 a0 9f 9f 5b0 9e 9e 9e 9d 9d 9d 9c 9c 9b 9b 9b 9a 9a 9a 99 99 5c0 98 98 98 97 97 96 96 96 95 95 95 94 94 93 93 93 5d0 92 92 91 91 91 90 90 8f 8f 8f 8e 8e 8e 8d 8d 8c 5e0 8c 8c 8b 8b 8a 8a 8a 89 89 88 88 88 87 87 87 86 5f0 86 85 85 85 84 84 83 83 83 82 82 81 81 81 80 80 600 7f 7f 7f 7e 7e 7e 7d 7d 7c 7c 7c 7b 7b 7a 7a 7a 610 79 79 78 78 78 77 77 77 76 76 75 75 75 74 74 73 620 73 73 72 72 71 71 71 70 70 70 6f 6f 6e 6e 6e 6d 630 6d 6c 6c 6c 6b 6b 6a 6a 6a 69 69 69 68 68 67 67 640 67 66 66 65 65 65 64 64 64 63 63 62 62 62 61 61 650 61 60 60 5f 5f 5f 5e 5e 5d 5d 5d 5c 5c 5c 5b 5b 660 5a 5a 5a 59 59 59 58 58 58 57 57 56 56 56 55 55 670 55 54 54 53 53 53 52 52 52 51 51 51 50 50 4f 4f 680 4f 4e 4e 4e 4d 4d 4d 4c 4c 4b 4b 4b 4a 4a 4a 49 690 49 49 48 48 48 47 47 47 46 46 45 45 45 44 44 44 6a0 43 43 43 42 42 42 41 41 41 40 40 40 3f 3f 3f 3e 6b0 3e 3e 3d 3d 3d 3c 3c 3c 3b 3b 3b 3a 3a 3a 39 39 6c0 39 38 38 38 37 37 37 36 36 36 35 35 35 34 34 34 6d0 34 33 33 33 32 32 32 31 31 31 30 30 30 30 2f 2f 6e0 2f 2e 2e 2e 2d 2d 2d 2d 2c 2c 2c 2b 2b 2b 2a 2a 6f0 2a 2a 29 29 29 28 28 28 28 27 27 27 26 26 26 26 700 25 25 25 25 24 24 24 23 23 23 23 22 22 22 22 21 710 21 21 21 20 20 20 1f 1f 1f 1f 1e 1e 1e 1e 1d 1d 720 1d 1d 1c 1c 1c 1c 1b 1b 1b 1b 1b 1a 1a 1a 1a 19 730 19 19 19 18 18 18 18 17 17 17 17 17 16 16 16 16 740 15 15 15 15 15 14 14 14 14 14 13 13 13 13 13 12 750 12 12 12 12 11 11 11 11 11 10 10 10 10 10 f f 760 f f f f e e e e e d d d d d d c 770 c c c c c b b b b b b a a a a a 780 a a 9 9 9 9 9 9 9 8 8 8 8 8 8 8 790 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6 6 7a0 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 7b0 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 7c0 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 7d0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 7e0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 7f0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 --IMA.Boundary.273410538-- From ccdapple@wtpprod1.wtp.net Wed Jun 19 09:16:35 1996 Received: from orion.dapples.net. (root@wtprl-1.wtp.net [206.26.77.35]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id JAA11445 for ; Wed, 19 Jun 1996 09:16:31 -0500 (CDT) Received: (from chris@localhost) by orion.dapples.net. (8.6.12/8.6.9) id NAA00493 for ss@tapr.org; Tue, 18 Jun 1996 13:40:17 -0600 Message-ID: X-Mailer: XFMail 0.3 [p0] on Linux Sender: chris@orion.dapples.net Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Reply-To: ccdapple@wtpprod1.wtp.net Date: Tue, 18 Jun 1996 13:34:42 MDT From: Chris Dapples To: ss@tapr.org Subject: Subject: Spread Spectrum Hardware Hi All, Since the ARRL Spread Sprectum Sourcebook is getting somewhat out of date, I was wondering what hardware is available for amateur experimentation? I am not an electrical engineer and have very limited access to chips and parts. So building from scratch is at the low end of options, unless kits are available. 73. Chris / KF7KN ax25----> KF7KN@KF7KN.#SCMT.MT.USA.NOAM TCP/IP--> 44.82.72.2 E-MAIL--> kf7kn@amsat.org From LANIER.R.A-@smtpgty.bwi.wec.com Wed Jun 19 14:33:22 1996 Received: from tron.bwi.wec.com (tron.bwi.wec.com [129.228.4.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA25511 for ; Wed, 19 Jun 1996 14:33:19 -0500 (CDT) Received: from smtpgty.bwi.wec.com by tron.bwi.wec.com; (5.65/1.1.8.2/31May95-0229PM) id AA20446; Wed, 19 Jun 1996 15:30:07 -0400 Received: from ccMail by smtpgty.bwi.wec.com (IMA Internet Exchange 2.0 Enterprise) id 1C8562A0; Wed, 19 Jun 96 15:34:02 -0400 Mime-Version: 1.0 Date: Wed, 19 Jun 1996 15:25:35 -0400 Message-Id: <1C8562A0.1858@smtpgty.bwi.wec.com> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) Subject: Re: [SS:310] PN Code Generation Article To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part James, I don't have access to this periodical. Is there any way you could send me a copy? 73s de Tony, KE4ATO ______________________________ Reply Separator _________________________________ Subject: [SS:310] PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/13/96 2:33 PM I have recently read a very good (practical and light theory) article on Pseudorandom Codes, their generation and uses. For those interested it is - Pseudo noise sequences for engineers by RN Mutagi April 1996 Volume 8 Number 2 Electronics & Communication Engineering Journal of the IEE I'd recommend it ! James Vincent G1PVZ From javincent@iee.org Mon Jun 24 13:44:30 1996 Received: from gw.rmcs.cranfield.ac.uk (gw.rmcs.cranfield.ac.uk [193.63.243.2]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id NAA01558 for ; Mon, 24 Jun 1996 13:44:26 -0500 (CDT) Message-Id: <199606241844.NAA01558@tapr.org> Received: from vincent.rmcs.cranfield.ac.uk by gw.rmcs.cranfield.ac.uk with SMTP; Mon, 24 Jun 1996 19:44:19 +0100 (BST) Comments: Authenticated sender is From: "James A Vincent" To: ss@tapr.org Date: Sun, 23 Jun 1996 19:32:18 0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: [SS:313] Re: PN Code Generation Article Priority: normal X-mailer: Pegasus Mail for Windows (v2.31) > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 15:08:34 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id PAA05040 for ; Mon, 24 Jun 1996 15:08:28 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id PAA18593 for ; Mon, 24 Jun 1996 15:12:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835653895; Mon, 24 Jun 96 15:03:06 cst Date: Mon, 24 Jun 96 15:03:06 cst Message-Id: <9605248356.AA835653895@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From LANIER.R.A-@smtpgty.bwi.wec.com Mon Jun 24 16:02:02 1996 Received: from tron.bwi.wec.com (tron.bwi.wec.com [129.228.4.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id QAA07744 for ; Mon, 24 Jun 1996 16:02:00 -0500 (CDT) Received: from smtpgty.bwi.wec.com by tron.bwi.wec.com; (5.65/1.1.8.2/31May95-0229PM) id AA22799; Mon, 24 Jun 1996 16:55:32 -0400 Received: from ccMail by smtpgty.bwi.wec.com (IMA Internet Exchange 2.0 Enterprise) id 1CF02510; Mon, 24 Jun 96 17:02:09 -0400 Mime-Version: 1.0 Date: Mon, 24 Jun 1996 16:52:04 -0400 Message-Id: <1CF02510.1858@smtpgty.bwi.wec.com> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) Subject: Re: [SS:314] Re: PN Code Generation Article To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 16:07:31 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id QAA08089 for ; Mon, 24 Jun 1996 16:07:28 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id QAA19259 for ; Mon, 24 Jun 1996 16:11:16 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835657435; Mon, 24 Jun 96 16:02:06 cst Date: Mon, 24 Jun 96 16:02:06 cst Message-Id: <9605248356.AA835657435@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 16:52:26 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id QAA09715 for ; Mon, 24 Jun 1996 16:52:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id QAA19672 for ; Mon, 24 Jun 1996 16:56:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835660134; Mon, 24 Jun 96 16:47:06 cst Date: Mon, 24 Jun 96 16:47:06 cst Message-Id: <9605248356.AA835660134@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 17:07:27 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id RAA10246 for ; Mon, 24 Jun 1996 17:07:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id RAA19785 for ; Mon, 24 Jun 1996 17:11:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835661034; Mon, 24 Jun 96 17:02:06 cst Date: Mon, 24 Jun 96 17:02:06 cst Message-Id: <9605248356.AA835661034@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 17:47:25 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id RAA11779 for ; Mon, 24 Jun 1996 17:47:24 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id RAA20005 for ; Mon, 24 Jun 1996 17:51:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835663434; Mon, 24 Jun 96 17:42:05 cst Date: Mon, 24 Jun 96 17:42:05 cst Message-Id: <9605248356.AA835663434@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 17:59:26 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id RAA12306 for ; Mon, 24 Jun 1996 17:59:24 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id SAA20074 for ; Mon, 24 Jun 1996 18:03:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835664154; Mon, 24 Jun 96 17:54:06 cst Date: Mon, 24 Jun 96 17:54:06 cst Message-Id: <9605248356.AA835664154@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From jfields@cisco.com Mon Jun 24 18:21:36 1996 Received: from nacho.cisco.com (nacho.cisco.com [171.69.1.160]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id SAA13345 for ; Mon, 24 Jun 1996 18:21:34 -0500 (CDT) Received: from mt-waterman.cisco.com (mt-waterman.cisco.com [171.69.28.229]) by nacho.cisco.com (8.6.8+c/CISCO.SERVER.1.1) with ESMTP id QAA22706 for ; Mon, 24 Jun 1996 16:20:59 -0700 From: Julian Fields Received: (jfields@localhost) by mt-waterman.cisco.com (8.6.8+c/CISCO.WS.1.1) id QAA03416 for ss@tapr.org; Mon, 24 Jun 1996 16:15:30 -0700 Date: Mon, 24 Jun 1996 16:15:30 -0700 Message-Id: <199606242315.QAA03416@mt-waterman.cisco.com> To: ss@tapr.org Subject: Surface Acoustic Wave Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 18:29:26 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id SAA13566 for ; Mon, 24 Jun 1996 18:29:24 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id SAA20197 for ; Mon, 24 Jun 1996 18:33:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835665954; Mon, 24 Jun 96 18:24:05 cst Date: Mon, 24 Jun 96 18:24:05 cst Message-Id: <9605248356.AA835665954@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 18:37:27 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id SAA13999 for ; Mon, 24 Jun 1996 18:37:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id SAA20255 for ; Mon, 24 Jun 1996 18:41:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835666434; Mon, 24 Jun 96 18:32:06 cst Date: Mon, 24 Jun 96 18:32:06 cst Message-Id: <9605248356.AA835666434@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 19:12:26 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id TAA15203 for ; Mon, 24 Jun 1996 19:12:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id TAA20444 for ; Mon, 24 Jun 1996 19:16:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835668535; Mon, 24 Jun 96 19:07:05 cst Date: Mon, 24 Jun 96 19:07:05 cst Message-Id: <9605248356.AA835668535@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 19:21:29 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id TAA15675 for ; Mon, 24 Jun 1996 19:21:27 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id TAA20475 for ; Mon, 24 Jun 1996 19:25:16 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835669074; Mon, 24 Jun 96 19:16:06 cst Date: Mon, 24 Jun 96 19:16:06 cst Message-Id: <9605248356.AA835669074@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 19:37:28 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id TAA16195 for ; Mon, 24 Jun 1996 19:37:26 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id TAA20532 for ; Mon, 24 Jun 1996 19:41:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835670034; Mon, 24 Jun 96 19:32:06 cst Date: Mon, 24 Jun 96 19:32:06 cst Message-Id: <9605248356.AA835670034@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 19:58:59 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id TAA16905 for ; Mon, 24 Jun 1996 19:58:57 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id UAA20623 for ; Mon, 24 Jun 1996 20:02:46 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835671327; Mon, 24 Jun 96 19:54:07 cst Date: Mon, 24 Jun 96 19:54:07 cst Message-Id: <9605248356.AA835671327@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 20:00:39 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA16943 for ; Mon, 24 Jun 1996 20:00:37 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id UAA20632 for ; Mon, 24 Jun 1996 20:04:26 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835671427; Mon, 24 Jun 96 19:55:07 cst Date: Mon, 24 Jun 96 19:55:07 cst Message-Id: <9605248356.AA835671427@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From wb9mjn@wb9mjn.ampr.org Mon Jun 24 20:09:52 1996 Received: from wb9mjn.ampr.org (wb9mjn.ampr.org [44.72.98.19]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA17456 for ; Mon, 24 Jun 1996 20:09:33 -0500 (CDT) From: wb9mjn@wb9mjn.ampr.org Date: Mon, 24 Jun 96 19:15:09 UTC Message-Id: <10534@wb9mjn.ampr.org> To: ss@tapr.org Subject: Re: [SS:322] Surface Acoustic Wave In-Reply-To: your message of Mon Jun 24 18:40:31 1996 <199606242315.QAA03416@mt-waterman.cisco.com> Hi Julian, Murata makes a 2.4 Ghz filter, but it only covers the ISM SS portion of the band. It cuts off at 2.400 Ghz. These filters are not interdigital type filters. So, they are not that much better than , or any better at all, than standard analog microwave filters. They use a SAW device as a resonator, then have multiple reson- ators. The advantage is that they are very small, and can be circuit board mounted. The losses are worse than waveguide, or airline interdigital filters, but comparable with small strip line interdigital filters, on ciruit board material, or microstrip filters. On 900 Mhz, ceramic loaded coaxial resonator filters are practical. Most Cellular phones use these type of filters for a duplexor. I believe there are some SAW device Cellular telephone duplexors out there, but again, they would be SAW resonator filters, not interdigital transducer type. I don t have any info handy on these. U might check with Fujitsu. 5 Ghz, is a bit high for SAW devices. Ceramic loaded waveguide would prob- bably be a better small foot print way to go. I ve not heard of anything being mass-produced for 5 Ghz, myself, yet. 73, Don. Mailbox : WB9MJN @ N9HSI.IL.USA.NA AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 20:13:27 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA17552 for ; Mon, 24 Jun 1996 20:13:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id UAA20686 for ; Mon, 24 Jun 1996 20:17:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835672195; Mon, 24 Jun 96 20:08:06 cst Date: Mon, 24 Jun 96 20:08:06 cst Message-Id: <9605248356.AA835672195@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 20:23:44 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA17939 for ; Mon, 24 Jun 1996 20:23:42 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id UAA20723 for ; Mon, 24 Jun 1996 20:27:30 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835672794; Mon, 24 Jun 96 20:18:05 cst Date: Mon, 24 Jun 96 20:18:05 cst Message-Id: <9605248356.AA835672794@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 20:43:30 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA18400 for ; Mon, 24 Jun 1996 20:43:26 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id UAA20800 for ; Mon, 24 Jun 1996 20:47:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835673995; Mon, 24 Jun 96 20:38:05 cst Date: Mon, 24 Jun 96 20:38:05 cst Message-Id: <9605248356.AA835673995@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 20:54:27 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA18893 for ; Mon, 24 Jun 1996 20:54:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id UAA20837 for ; Mon, 24 Jun 1996 20:58:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835674654; Mon, 24 Jun 96 20:49:05 cst Date: Mon, 24 Jun 96 20:49:05 cst Message-Id: <9605248356.AA835674654@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hi Julian, Murata makes a 2.4 Ghz filter, but it only covers the ISM SS portion of the band. It cuts off at 2.400 Ghz. These filters are not interdigital type filters. So, they are not that much better than , or any better at all, than standard analog microwave filters. They use a SAW device as a resonator, then have multiple reson- ators. The advantage is that they are very small, and can be circuit board mounted. The losses are worse than waveguide, or airline interdigital filters, but comparable with small strip line interdigital filters, on ciruit board material, or microstrip filters. On 900 Mhz, ceramic loaded coaxial resonator filters are practical. Most Cellular phones use these type of filters for a duplexor. I believe there are some SAW device Cellular telephone duplexors out there, but again, they would be SAW resonator filters, not interdigital transducer type. I don t have any info handy on these. U might check with Fujitsu. 5 Ghz, is a bit high for SAW devices. Ceramic loaded waveguide would prob- bably be a better small foot print way to go. I ve not heard of anything being mass-produced for 5 Ghz, myself, yet. 73, Don. Mailbox : WB9MJN @ N9HSI.IL.USA.NA AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 21:03:26 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA19399 for ; Mon, 24 Jun 1996 21:03:24 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id VAA20883 for ; Mon, 24 Jun 1996 21:07:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835675194; Mon, 24 Jun 96 20:58:06 cst Date: Mon, 24 Jun 96 20:58:06 cst Message-Id: <9605248356.AA835675194@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 21:18:31 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA19897 for ; Mon, 24 Jun 1996 21:18:27 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id VAA20935 for ; Mon, 24 Jun 1996 21:22:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835676095; Mon, 24 Jun 96 21:13:06 cst Date: Mon, 24 Jun 96 21:13:06 cst Message-Id: <9605248356.AA835676095@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 21:23:29 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA20047 for ; Mon, 24 Jun 1996 21:23:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id VAA20968 for ; Mon, 24 Jun 1996 21:27:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835676394; Mon, 24 Jun 96 21:18:05 cst Date: Mon, 24 Jun 96 21:18:05 cst Message-Id: <9605248356.AA835676394@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 21:38:28 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA20691 for ; Mon, 24 Jun 1996 21:38:26 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id VAA21033 for ; Mon, 24 Jun 1996 21:42:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835677295; Mon, 24 Jun 96 21:33:05 cst Date: Mon, 24 Jun 96 21:33:05 cst Message-Id: <9605248356.AA835677295@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hi Julian, Murata makes a 2.4 Ghz filter, but it only covers the ISM SS portion of the band. It cuts off at 2.400 Ghz. These filters are not interdigital type filters. So, they are not that much better than , or any better at all, than standard analog microwave filters. They use a SAW device as a resonator, then have multiple reson- ators. The advantage is that they are very small, and can be circuit board mounted. The losses are worse than waveguide, or airline interdigital filters, but comparable with small strip line interdigital filters, on ciruit board material, or microstrip filters. On 900 Mhz, ceramic loaded coaxial resonator filters are practical. Most Cellular phones use these type of filters for a duplexor. I believe there are some SAW device Cellular telephone duplexors out there, but again, they would be SAW resonator filters, not interdigital transducer type. I don t have any info handy on these. U might check with Fujitsu. 5 Ghz, is a bit high for SAW devices. Ceramic loaded waveguide would prob- bably be a better small foot print way to go. I ve not heard of anything being mass-produced for 5 Ghz, myself, yet. 73, Don. Mailbox : WB9MJN @ N9HSI.IL.USA.NA AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 21:52:46 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA21503 for ; Mon, 24 Jun 1996 21:52:44 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id VAA21085 for ; Mon, 24 Jun 1996 21:56:31 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835678134; Mon, 24 Jun 96 21:47:06 cst Date: Mon, 24 Jun 96 21:47:06 cst Message-Id: <9605248356.AA835678134@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 22:07:27 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id WAA22075 for ; Mon, 24 Jun 1996 22:07:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id WAA21162 for ; Mon, 24 Jun 1996 22:11:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835679034; Mon, 24 Jun 96 22:02:06 cst Date: Mon, 24 Jun 96 22:02:06 cst Message-Id: <9605248356.AA835679034@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 22:15:25 1996 Received: from vixen.nrlssc.navy.mil ([128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id WAA22158 for ; Mon, 24 Jun 1996 22:15:23 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id WAA21197 for ; Mon, 24 Jun 1996 22:19:12 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835679514; Mon, 24 Jun 96 22:10:06 cst Date: Mon, 24 Jun 96 22:10:06 cst Message-Id: <9605248356.AA835679514@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 22:38:18 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id WAA23207 for ; Mon, 24 Jun 1996 22:38:15 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id WAA21286 for ; Mon, 24 Jun 1996 22:42:02 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835680883; Mon, 24 Jun 96 22:32:06 cst Date: Mon, 24 Jun 96 22:32:06 cst Message-Id: <9605248356.AA835680883@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hi Julian, Murata makes a 2.4 Ghz filter, but it only covers the ISM SS portion of the band. It cuts off at 2.400 Ghz. These filters are not interdigital type filters. So, they are not that much better than , or any better at all, than standard analog microwave filters. They use a SAW device as a resonator, then have multiple reson- ators. The advantage is that they are very small, and can be circuit board mounted. The losses are worse than waveguide, or airline interdigital filters, but comparable with small strip line interdigital filters, on ciruit board material, or microstrip filters. On 900 Mhz, ceramic loaded coaxial resonator filters are practical. Most Cellular phones use these type of filters for a duplexor. I believe there are some SAW device Cellular telephone duplexors out there, but again, they would be SAW resonator filters, not interdigital transducer type. I don t have any info handy on these. U might check with Fujitsu. 5 Ghz, is a bit high for SAW devices. Ceramic loaded waveguide would prob- bably be a better small foot print way to go. I ve not heard of anything being mass-produced for 5 Ghz, myself, yet. 73, Don. Mailbox : WB9MJN @ N9HSI.IL.USA.NA AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 22:40:29 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id WAA23244 for ; Mon, 24 Jun 1996 22:40:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id WAA21296 for ; Mon, 24 Jun 1996 22:44:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835681014; Mon, 24 Jun 96 22:35:06 cst Date: Mon, 24 Jun 96 22:35:06 cst Message-Id: <9605248356.AA835681014@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 22:47:37 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id WAA23413 for ; Mon, 24 Jun 1996 22:47:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id WAA21335 for ; Mon, 24 Jun 1996 22:51:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835681434; Mon, 24 Jun 96 22:42:06 cst Date: Mon, 24 Jun 96 22:42:06 cst Message-Id: <9605248356.AA835681434@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 23:00:27 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id XAA23934 for ; Mon, 24 Jun 1996 23:00:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id XAA21394 for ; Mon, 24 Jun 1996 23:04:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835682215; Mon, 24 Jun 96 22:55:06 cst Date: Mon, 24 Jun 96 22:55:06 cst Message-Id: <9605248356.AA835682215@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Mon Jun 24 23:33:43 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id XAA25531 for ; Mon, 24 Jun 1996 23:33:41 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id XAA21513 for ; Mon, 24 Jun 1996 23:37:30 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835684194; Mon, 24 Jun 96 23:28:05 cst Date: Mon, 24 Jun 96 23:28:05 cst Message-Id: <9605248356.AA835684194@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Tue Jun 25 00:08:30 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id AAA00988 for ; Tue, 25 Jun 1996 00:08:25 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id AAA21787 for ; Tue, 25 Jun 1996 00:12:14 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835686295; Tue, 25 Jun 96 00:03:07 cst Date: Tue, 25 Jun 96 00:03:07 cst Message-Id: <9605258356.AA835686295@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable James, Yes, I got the article; It is very good! I would appreciate a copy of the PN article. My postal address is Tony Lanier, KE4ATO 687 Jamestown Blvd, Apt.2006 Altamonte Springs, FL 32714-4633 ______________________________ Reply Separator _________________________________ Subject: [SS:314] Re: PN Code Generation Article Author: ss@tapr.org at BALT.SMTP Date: 6/24/96 1:48 PM > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Tue Jun 25 00:10:10 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id AAA01044 for ; Tue, 25 Jun 1996 00:10:05 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id AAA21796 for ; Tue, 25 Jun 1996 00:13:54 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835686395; Tue, 25 Jun 96 00:03:08 cst Date: Tue, 25 Jun 96 00:03:08 cst Message-Id: <9605258356.AA835686395@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hi Julian, Murata makes a 2.4 Ghz filter, but it only covers the ISM SS portion of the band. It cuts off at 2.400 Ghz. These filters are not interdigital type filters. So, they are not that much better than , or any better at all, than standard analog microwave filters. They use a SAW device as a resonator, then have multiple reson- ators. The advantage is that they are very small, and can be circuit board mounted. The losses are worse than waveguide, or airline interdigital filters, but comparable with small strip line interdigital filters, on ciruit board material, or microstrip filters. On 900 Mhz, ceramic loaded coaxial resonator filters are practical. Most Cellular phones use these type of filters for a duplexor. I believe there are some SAW device Cellular telephone duplexors out there, but again, they would be SAW resonator filters, not interdigital transducer type. I don t have any info handy on these. U might check with Fujitsu. 5 Ghz, is a bit high for SAW devices. Ceramic loaded waveguide would prob- bably be a better small foot print way to go. I ve not heard of anything being mass-produced for 5 Ghz, myself, yet. 73, Don. Mailbox : WB9MJN @ N9HSI.IL.USA.NA AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Tue Jun 25 00:12:05 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id AAA01172 for ; Tue, 25 Jun 1996 00:12:03 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id AAA21821 for ; Tue, 25 Jun 1996 00:15:51 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835686494; Tue, 25 Jun 96 00:04:08 cst Date: Tue, 25 Jun 96 00:04:08 cst Message-Id: <9605258356.AA835686494@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable Hello, I have some questions about SAW filters for the Part 15 bands (902-928Mhz, 2.4 Gig, 5 gigahertz). 1. Does anybody make SAW filters for these bands in off the shelf (low quantity). 2. What is the max power you can send thru these? Part 15 are limited to 1 watt. Can they handle 1 watt and still act like a filter or do they go non-linear? Would it be wiser to filter a few stages before the final output stage to avoid overdrive? 3. On receive, are SAW's better than LC filters? I know there is a loss of dB which would increase noise, so should there be a SAW allowed before the RF amplifier? Is noise any concern since you are mostly concerned with interference from other Part 15, ISM, and Amateur rather than noise in Part 15 devices? I've heard that SAW's are smaller, better filters, but don't know their limitations. Thanks, Julian WA4CKY (expired) From Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Tue Jun 25 00:37:29 1996 Received: from vixen.nrlssc.navy.mil (vixen_fddi.nrlssc.navy.mil [128.160.11.15]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id AAA04699 for ; Tue, 25 Jun 1996 00:37:26 -0500 (CDT) From: Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil Received: from nrlsscgw.nrlssc.navy.mil (nrlsscgw.nrlssc.navy.mil [128.160.63.52]) by vixen.nrlssc.navy.mil (8.6.12/8.6.12) with SMTP id AAA21903 for ; Tue, 25 Jun 1996 00:41:13 -0500 Received: from cc:Mail by nrlsscgw.nrlssc.navy.mil id AA835688034; Tue, 25 Jun 96 00:32:06 cst Date: Tue, 25 Jun 96 00:32:06 cst Message-Id: <9605258356.AA835688034@nrlsscgw.nrlssc.navy.mil> To: ss@tapr.org Subject: Message not deliverable > Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > Reply-to: ss@tapr.org > From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > To: ss@tapr.org > Subject: [SS:313] Re: PN Code Generation Article > James, > > I don't have access to this periodical. Is there any way you could > send me a copy? > > 73s de > Tony, KE4ATO Tony, Did you get my article I sent to you via Steven Bible. Please send me your postal address again and I will send you a copy of the PN article. Regards, James From ka1kjz@tigger.jvnc.net Tue Jun 25 10:28:59 1996 Received: from tigger.jvnc.net (tigger.jvnc.net [128.121.50.145]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id KAA21408 for ; Tue, 25 Jun 1996 10:28:57 -0500 (CDT) Received: from ka1kjz.jvnc.net by tigger.jvnc.net with SMTP id AA18478 (5.65c/IDA-1.4.4 for ss@tapr.org); Tue, 25 Jun 1996 10:34:22 -0400 Date: Tue, 25 Jun 1996 10:34:22 -0400 Message-Id: <199606251434.AA18478@tigger.jvnc.net> X-Sender: ka1kjz@tigger.jvnc.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: ss@tapr.org From: "Ronald C. Barnes" Subject: Re: [SS:350] Message not deliverable Sombody wanna fix this? At 12:46 AM 6/25/96 -0500, Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil wrote: >> Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) >> Reply-to: ss@tapr.org >> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) >> To: ss@tapr.org >> Subject: [SS:313] Re: PN Code Generation Article > >> James, >> >> I don't have access to this periodical. Is there any way you could >> send me a copy? >> >> 73s de >> Tony, KE4ATO > >Tony, > >Did you get my article I sent to you via Steven Bible. Please send me your >postal address again and I will send you a copy of the PN article. > >Regards, >James > > > > > > > > > > > > > > > -- *********************************************************************** ** Ronald C. Barnes KA1KJZ Engineering Tech, Group W Satellite ** ** 1591 W. Broad Street ARRL CT Section Technical Coord. ** ** Stratford, CT 06497 Member, Soc. Broadcast Engineers ** ** ** ** The preceding are my opinions, mine, mine, mine! ** ** Any attempt to say otherwise will result in a hearty laugh ** *********************************************************************** From jfields@cisco.com Tue Jun 25 11:39:55 1996 Received: from harrier.cisco.com (harrier.cisco.com [171.69.1.173]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id LAA24067 for ; Tue, 25 Jun 1996 11:39:53 -0500 (CDT) Received: (jfields@localhost) by harrier.cisco.com (8.6.8+c/8.6.5) id JAA05905 for ss@tapr.org; Tue, 25 Jun 1996 09:39:20 -0700 Date: Tue, 25 Jun 1996 09:39:20 -0700 From: Julian Fields Message-Id: <199606251639.JAA05905@harrier.cisco.com> To: ss@tapr.org Subject: Re: [SS:351] Re: Message not deliverable Note to SS email list subscribers: Posts are being bounced because somebody has an undeliverable email address. This automatic reply is sent back to ss@tapr.org and posted to everybody. The "undeliverable email address" message also gets a reply that it was undeliverable creating an infinite loop. The way I have seen this fixed in the PCI sig email list is that the Reply-To: header goes to an admin of the email list or to a null account. The disadvantage is that users of the email list cannot just hit the reply button, but must specifically address to ss@tapr.org From bad@uhf.wdc.net Tue Jun 25 14:19:32 1996 Received: from wireless.wdc.net (wireless.wdc.net [204.140.136.28]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA00358 for ; Tue, 25 Jun 1996 14:19:30 -0500 (CDT) Received: from uhf.wdc.net (uhf.wdc.net [198.147.74.44]) by wireless.wdc.net (8.6.12/8.6.12) with ESMTP id MAA08933 for ; Tue, 25 Jun 1996 12:25:06 -0700 Received: (from bad@localhost) by uhf.wdc.net (8.7.5/8.6.12) id PAA02013; Tue, 25 Jun 1996 15:22:01 -0400 (EDT) Date: Tue, 25 Jun 1996 15:22:00 -0400 (EDT) From: Bernie Doehner To: ss@tapr.org Subject: Re: [SS:352] Re: Message not deliverable In-Reply-To: <199606251639.JAA05905@harrier.cisco.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII > > The way I have seen this fixed in the PCI sig > email list is that the Reply-To: header goes to > an admin of the email list or to a null account. > The disadvantage is that users of the email list > cannot just hit the reply button, but must specifically > address to ss@tapr.org > Isn't that why someone invented the Errors-To: header? Bernie From ATVQ@aol.com Tue Jun 25 14:45:28 1996 Received: from emout09.mail.aol.com (emout09.mx.aol.com [198.81.11.24]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA00988 for ; Tue, 25 Jun 1996 14:45:27 -0500 (CDT) From: ATVQ@aol.com Received: by emout09.mail.aol.com (8.6.12/8.6.12) id PAA04363 for ss@tapr.org; Tue, 25 Jun 1996 15:45:48 -0400 Date: Tue, 25 Jun 1996 15:45:48 -0400 Message-ID: <960625154546_563867809@emout09.mail.aol.com> To: ss@tapr.org Subject: Re: [SS:351] Re: Message not deliverable had 27 in my box From wd5ivd@tapr.org Tue Jun 25 15:02:57 1996 Received: (from wd5ivd@localhost) by tapr.org (8.7.5/8.7.3/1.9) id PAA01558 for ss@tapr.org; Tue, 25 Jun 1996 15:02:56 -0500 (CDT) From: Greg Jones Message-Id: <199606252002.PAA01558@tapr.org> Subject: Re: [SS:351] Re: Message not deliverable To: ss@tapr.org Date: Tue, 25 Jun 1996 15:02:56 -0500 (CDT) In-Reply-To: <199606251434.AA18478@tigger.jvnc.net> from "Ronald C. Barnes" at Jun 25, 96 10:41:33 am X-Mailer: ELM [version 2.4 PL25] Content-Type: text We fixed it after the firsty few messages -- unfornately the other site still had several queued. Cheers - grg > > Sombody wanna fix this? > > At 12:46 AM 6/25/96 -0500, > Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil wrote: > >> Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > >> Reply-to: ss@tapr.org > >> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > >> To: ss@tapr.org > >> Subject: [SS:313] Re: PN Code Generation Article > > > >> James, > >> > >> I don't have access to this periodical. Is there any way you could > >> send me a copy? > >> > >> 73s de > >> Tony, KE4ATO > > > >Tony, > > > >Did you get my article I sent to you via Steven Bible. Please send me your > >postal address again and I will send you a copy of the PN article. > > > >Regards, > >James > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > *********************************************************************** > ** Ronald C. Barnes KA1KJZ Engineering Tech, Group W Satellite ** > ** 1591 W. Broad Street ARRL CT Section Technical Coord. ** > ** Stratford, CT 06497 Member, Soc. Broadcast Engineers ** > ** ** > ** The preceding are my opinions, mine, mine, mine! ** > ** Any attempt to say otherwise will result in a hearty laugh ** > *********************************************************************** > > From katayama@ogawa.nuee.nagoya-u.ac.jp Tue Jun 25 19:12:07 1996 Received: from westar.ogawa.nuee.nagoya-u.ac.jp (westar.ogawa.nuee.nagoya-u.ac.jp [133.6.108.107]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id TAA10219 for ; Tue, 25 Jun 1996 19:12:05 -0500 (CDT) Received: from aska.ogawa.nuee.nagoya-u.ac.jp (katayama@skynet.ogawa.nuee.nagoya-u.ac.jp [133.6.108.105]) by westar.ogawa.nuee.nagoya-u.ac.jp (8.6.12+2.4W/3.3W9) with ESMTP id JAA09127 for ; Wed, 26 Jun 1996 09:11:53 +0900 Message-Id: <199606260011.JAA09127@westar.ogawa.nuee.nagoya-u.ac.jp> To: ss@tapr.org Subject: Re: [SS:352] Re: Message not deliverable In-reply-to: Your message of "Tue, 25 Jun 1996 11:40:43 EST." <199606251639.JAA05905@harrier.cisco.com> Date: Wed, 26 Jun 1996 09:12:00 JST From: KATAYAMA Masaaki In article <199606251639.JAA05905@harrier.cisco.com>, Julian Fields writes: Julian> Note to SS email list subscribers: Julian> Posts are being bounced : Julian> The way I have seen this fixed in the PCI sig Julian> email list is that the Reply-To: header goes to Julian> an admin of the email list or to a null account. How about adding Errors-To: field in the header of the mail... --je3mxq/aa8wk/ From mkelley@osf1.gmu.edu Tue Jun 25 20:42:23 1996 Received: from osf1.gmu.edu (osf1.gmu.edu [129.174.1.13]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id UAA13124 for ; Tue, 25 Jun 1996 20:42:22 -0500 (CDT) Received: by osf1.gmu.edu; (5.65v3.2/1.1.8.2/07Sep94-1001AM/GMUv3) id AA18177; Tue, 25 Jun 1996 21:42:12 -0400 Date: Tue, 25 Jun 1996 21:42:11 -0400 (EDT) From: Dr Mike Kelley To: ss@tapr.org Subject: Re: [SS:351] Re: Message not deliverable In-Reply-To: <199606251434.AA18478@tigger.jvnc.net> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII What gives?? I got 30 of these a while ago, and a bunch again now. The message may not be deliverable, but I'm getting my copies more than once. -Mike On Tue, 25 Jun 1996, Ronald C. Barnes wrote: > Sombody wanna fix this? > > At 12:46 AM 6/25/96 -0500, > Administrator_at_NRL-7030-PO@nrlsscgw.nrlssc.navy.mil wrote: > >> Date: Wed, 19 Jun 1996 14:46:23 -0500 (CDT) > >> Reply-to: ss@tapr.org > >> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) > >> To: ss@tapr.org > >> Subject: [SS:313] Re: PN Code Generation Article > > > >> James, > >> > >> I don't have access to this periodical. Is there any way you could > >> send me a copy? > >> > >> 73s de > >> Tony, KE4ATO > > > >Tony, > > > >Did you get my article I sent to you via Steven Bible. Please send me your > >postal address again and I will send you a copy of the PN article. > > > >Regards, > >James > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > *********************************************************************** > ** Ronald C. Barnes KA1KJZ Engineering Tech, Group W Satellite ** > ** 1591 W. Broad Street ARRL CT Section Technical Coord. ** > ** Stratford, CT 06497 Member, Soc. Broadcast Engineers ** > ** ** > ** The preceding are my opinions, mine, mine, mine! ** > ** Any attempt to say otherwise will result in a hearty laugh ** > *********************************************************************** > > From chbrain@dircon.co.uk Wed Jun 26 00:32:28 1996 Received: from felix.dircon.co.uk (felix.dircon.co.uk [193.128.224.10]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id AAA28130 for ; Wed, 26 Jun 1996 00:32:25 -0500 (CDT) Received: by felix.dircon.co.uk id AA18995 (5.67b/IDA-1.5 for ); Wed, 26 Jun 1996 06:32:23 +0100 Message-Id: <199606260532.AA18995@felix.dircon.co.uk> Received: from gw2-176.pool.dircon.co.uk(194.112.35.176) by amnesiac via smap (V1.3) id sma018993; Wed Jun 26 06:32:21 1996 X-Sender: chbrain@popmail.dircon.co.uk X-Mailer: Windows Eudora Version 1.4.4 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Wed, 26 Jun 1996 06:25:52 +0100 To: ss@tapr.org From: chbrain@dircon.co.uk (Charles Brain) Subject: Prism Chipset Hello, Has anybody tried using the Harris Prism chipset? Although the baseband processor is not legal for U.S Ham SS use the other members of the chipset make a nice 2.4 Ghz radio front end ? I am going to try to get a copy of ETS 300 328 (the European 2.4Ghz ISM SS spec) this week. By the way for U.K readers, I had a letter from the RA, apparently legalisation of Amateur SS in the U.K is to be discussed at the next meeting with the RSGB. They consider SS to be illegal under the U.K licence as they consider the spreading codes to be 'encryption' which is forbidden under 1.(4)(b) of BR68. From jfields@cisco.com Wed Jun 26 12:54:14 1996 Received: from harrier.cisco.com (harrier.cisco.com [171.69.1.173]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id MAA01612 for ; Wed, 26 Jun 1996 12:54:12 -0500 (CDT) Received: (jfields@localhost) by harrier.cisco.com (8.6.8+c/8.6.5) id KAA02437 for ss@tapr.org; Wed, 26 Jun 1996 10:53:35 -0700 Date: Wed, 26 Jun 1996 10:53:35 -0700 From: Julian Fields Message-Id: <199606261753.KAA02437@harrier.cisco.com> To: ss@tapr.org Subject: Re: [SS:330] Re: Surface Acoustic Wave > These filters are not interdigital type filters. So, they are not that > much better than , or any better at all, than standard analog microwave > filters. They use a SAW device as a resonator, then have multiple reson- > ators. The advantage is that they are very small, and can be circuit > board mounted. The losses are worse than waveguide, or airline interdigital > filters, but comparable with small strip line interdigital filters, on > ciruit board material, or microstrip filters. I did not realize there was a "resonator" type of SAW, I have only heard of interdigital. What is this like? > On 900 Mhz, ceramic loaded coaxial resonator filters are practical. Most > Cellular phones use these type of filters for a duplexor. I believe there > are some SAW device Cellular telephone duplexors out there, but again, they > would be SAW resonator filters, not interdigital transducer type. I don t have > any info handy on these. U might check with Fujitsu. Who sells ceramic loaded coaxial resonator filters, since these seem to fit the bill better? I would like to order a databook or reference material to learn more. I have one article in ARRL Microwave Experimenter's guide, but it talks about sizes being 2" to 5" inside the 'U' shaped cavity (don't know what ceramic loading is). This would be way too big for a hand-held cellular phone or 900Mhz SS phone. I had heard that duplexor in cellular phones had to have a steep slope filter function, since the transmitter and receiver operate at the same time, using the same antenna, and very close in frequency. Do they make them with wide enough bandpass (26Mhz, 80Mhz, for example) to use in spread spectrum? > 5 Ghz, is a bit high for SAW devices. Ceramic loaded waveguide would prob- > bably be a better small foot print way to go. > > I ve not heard of anything being mass-produced for 5 Ghz, myself, yet. > > > 73, Don. > > Mailbox : WB9MJN @ N9HSI.IL.USA.NA > AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] > Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu Very good info, Don. Thanks for the input, Julian From LANIER.R.A-@smtpgty.bwi.wec.com Wed Jun 26 14:13:30 1996 Received: from tron.bwi.wec.com (tron.bwi.wec.com [129.228.4.1]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id OAA05491 for ; Wed, 26 Jun 1996 14:13:28 -0500 (CDT) Received: from smtpgty.bwi.wec.com by tron.bwi.wec.com; (5.65/1.1.8.2/31May95-0229PM) id AA14247; Wed, 26 Jun 1996 15:08:26 -0400 Received: from ccMail by smtpgty.bwi.wec.com (IMA Internet Exchange 2.0 Enterprise) id 1D18BF90; Wed, 26 Jun 96 15:14:01 -0400 Mime-Version: 1.0 Date: Wed, 26 Jun 1996 15:06:50 -0400 Message-Id: <1D18BF90.1858@smtpgty.bwi.wec.com> From: LANIER.R.A-@smtpgty.bwi.wec.com (LANIER.R.A-) Subject: Re: [SS:358] Prism Chipset To: ss@tapr.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part The PRISM chipset by Harris is fairly expensive. The demo board for this chipset is ~1500.00!! You MIGHT get samples, but I doubt it. As the British thinking that SS is encryption...SS is another form of modulation, that's all. The data is not (necessarily) encoded. If they limit the PN codes, as is done here in the states, then monitoring will not be a problem. Oh well, so much for bureaucrats!! :( 73s de Tony, KE4ATO ______________________________ Reply Separator _________________________________ Subject: [SS:358] Prism Chipset Author: ss@tapr.org at BALT.SMTP Date: 6/26/96 12:41 AM Hello, Has anybody tried using the Harris Prism chipset? Although the baseband processor is not legal for U.S Ham SS use the other members of the chipset make a nice 2.4 Ghz radio front end ? I am going to try to get a copy of ETS 300 328 (the European 2.4Ghz ISM SS spec) this week. By the way for U.K readers, I had a letter from the RA, apparently legalisation of Amateur SS in the U.K is to be discussed at the next meeting with the RSGB. They consider SS to be illegal under the U.K licence as they consider the spreading codes to be 'encryption' which is forbidden under 1.(4)(b) of BR68. From glenne@hpsadr2.sr.hp.com Wed Jun 26 14:44:18 1996 Received: from hp.com (hp.com [15.255.152.4]) by tapr.org (8.7.5/8.7.3/1.9) with ESMTP id OAA06457 for ; Wed, 26 Jun 1996 14:43:41 -0500 (CDT) Received: from srmail.sr.hp.com by hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA161838214; Wed, 26 Jun 1996 12:43:34 -0700 Received: from hpsadr2.sr.hp.com (n6gn.sr.hp.com) by srmail.sr.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3) id AA268978213; Wed, 26 Jun 1996 12:43:34 -0700 Received: by hpsadr2.sr.hp.com (1.37.109.16/15.5+ECS 3.3) id AA215908212; Wed, 26 Jun 1996 12:43:32 -0700 From: Glenn Elmore Message-Id: <199606261943.AA215908212@hpsadr2.sr.hp.com> Subject: Re: [SS:359] Re: Surface Acoustic Wave To: ss@tapr.org (Julian Fields) Date: Wed, 26 Jun 1996 12:43:32 -0800 (PDT) In-Reply-To: <199606261753.KAA02437@harrier.cisco.com> from "Julian Fields" at Jun 26, 96 01:03:56 pm X-Mailer: ELM [version 2.4 PL21] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit > Who sells ceramic loaded coaxial resonator filters, since these > seem to fit the bill better? I would like to order a databook > or reference material A number of companies sell finished filters, but generally the catalog items don't seem too great for amateur use. Murata-Erie, for example, has a variety but probably only if you want an ISM band filter. Integrated Microwave will make samples and prototype quantities but I suspect for ham use the price is prohibitive. The actual ceramic material is only made by half a dozen, or so, companies worldwide, as I understand it. I think the filter houses buy it "green", process it and then fire it, after which it is very tough. I tried to tune a 900 MHz filter one time and it took a diamond tip. Even then the going was so slow that I lost interest pretty fast. > to learn more. I have one article in ARRL Microwave Experimenter's > guide, but it talks about sizes being 2" to 5" inside the 'U' shaped > cavity (don't know what ceramic loading is). > This would be way too big for a hand-held cellular phone > or 900Mhz SS phone. > I had heard that duplexor in cellular > phones had to have a steep slope filter function, since the > transmitter and receiver operate at the same time, using the same > antenna, and very close in frequency. > Do they make them with > wide enough bandpass (26Mhz, 80Mhz, for example) to use in spread spectrum? The cell-tel duplexers I have seen have quite a few resonator sections in them, perhaps a dozen. Not a surprise since they do need pretty good shape factor to pass ~25 MHz and reject ~25 MHz just a little ways away. I have a plot of one I made, if you are interested. The resonator sections that all these filters are made from are normally just shorted quarter wave lines made by silver plating inner and outer conductors onto the dielectric. Filter properties are managed by end coupling, usually with lumped elements since the patent for aperture coupling is still in effect. Slight tuning is sometimes handled with a grinding tool and/or little blocks of dielectric added at the ends of the resonators. Typical resonators have line impedance in the 5-15 ohm territory and Q's of 300 or so. Tuning is evidently necessary since getting a precise dielectric constant seems to be something of an art form. Personally, I'm not terribly impressed by ceramic resonators. While they do offer reasonable Q in small volume, they are difficult to obtain and work with in small quantities making them less desirable for amateur radio projects. I did use ceramic filters in the 230 kbps radios (3 per) but only because I was building at their design frequency and I was able to get quantitites at $0.50/ea. For L3TNC, I'm looking at using stripline resonators instead. With some of the newer PC board materials, it is possible to get Q limited primarily by conductor losses rather than dielectric losses. Qs similar to those of the ceramic resonators are possible. Stripline requires multilayer board process or mechanical sandwiching of two two-layer designs but even so is much more something that can be done in the ham shack. I have prototyped with 1/16" board; microstrip sandwiched with a single-sided piece above to create 1/8" stripline. It is possible to do either edge/broadside coupling for these filters or to use lumped elements, through low UHF, since the line impedances can be so low. The PC board approach is automatically shielded (to be fair, so are ceramic resonators for the most part) and allows surface mount parts to coexist in the same board space if not too many vias are punched through there. After looking at air and ceramic dielectric filters, I'm now trying to build oscillator resonator, ratrace mixers and bandpass filters all inside the PC board for a completely no-tune design which at the same time has high_Q/low_phasenoise/good_shape_factor, for L3TNC. So far, it seems to be working. Glenn Elmore n6gn amateur IP: glenn@SantaRosa.ampr.org Internet: glenne@sr.hp.com |--------------- N6GN's Higher Speed Packet WWW Page -------------------| | | | http://www.tapr.org/~n6gn/index.html | | | |-----------------------------------------------------------------------| From chbrain@dircon.co.uk Wed Jun 26 15:55:21 1996 Received: from felix.dircon.co.uk (felix.dircon.co.uk [193.128.224.10]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id PAA09012 for ; Wed, 26 Jun 1996 15:55:17 -0500 (CDT) Received: by felix.dircon.co.uk id AA06789 (5.67b/IDA-1.5 for ); Wed, 26 Jun 1996 21:55:09 +0100 Message-Id: <199606262055.AA06789@felix.dircon.co.uk> Received: from gw2-189.pool.dircon.co.uk(194.112.35.189) by amnesiac via smap (V1.3) id sma006777; Wed Jun 26 21:54:44 1996 X-Sender: chbrain@popmail.dircon.co.uk X-Mailer: Windows Eudora Version 1.4.4 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Wed, 26 Jun 1996 21:48:09 +0100 To: ss@tapr.org From: chbrain@dircon.co.uk (Charles Brain) Subject: Re: [SS:360] Re: Prism Chipset > The PRISM chipset by Harris is fairly expensive. The demo board for > this chipset is ~1500.00!! You MIGHT get samples, but I doubt it. > > As the British thinking that SS is encryption...SS is another form of > modulation, that's all. The data is not (necessarily) encoded. If they > limit the PN codes, as is done here in the states, then monitoring > will not be a problem. Oh well, so much for bureaucrats!! :( > > 73s de > Tony, KE4ATO > So much for Harris claiming that a PCMIA card costing less than $300 has been developed by a third party. I was really only looking at the rf chips, I was speaking to one of our chip designers at work and he is going to let me know how much it would take to produce a 'clone' of the baseband chip (using a longer pn sequence). As far as the SS encryption is concerned, yes I agree. The question I asked was the possibility of using a licence free SS link to pass ham traffic. I don't know what range the U.S 13cm band covers but the U.K one includes part of the ISM band. (2310 - 2450 HAM) (2400 - 2483 ISM) 73 Charles G4GUO From wb9mjn@wb9mjn.ampr.org Wed Jun 26 21:26:37 1996 Received: from wb9mjn.ampr.org (wb9mjn.ampr.org [44.72.98.19]) by tapr.org (8.7.5/8.7.3/1.9) with SMTP id VAA28170 for ; Wed, 26 Jun 1996 21:26:16 -0500 (CDT) From: wb9mjn@wb9mjn.ampr.org Date: Wed, 26 Jun 96 20:36:48 UTC Message-Id: <10577@wb9mjn.ampr.org> To: ss@tapr.org Subject: Re: [SS:359] Re: Surface Acoustic Wave In-Reply-To: your message of Wed Jun 26 13:03:56 1996 <199606261753.KAA02437@harrier.cisco.com> Hi Julian, and Glen, The SAW resonator technigue, if i remember this correctly, starts with a Simple 2 or 3 section SAW Interdigital structure, but instead of feeding across the IDT (Interdigtal Transducer) the signal is fed thru the trans ducer. This generates saw waves bidrectionally from the IDT, which are then re- flected back to the IDT structure, and out of the filter, by SAW resonators, . The SAW resonators are are acousitical reflectors, which are sharply tuned, and made similar to a IDT, but with no electrical connection. Multiple SAW resonators can be put on a die, and even multiple dies used to create the finished response. Of course, this is completely different from a Interdigital SAW filter, where the transucer finger lengths follow the Impulse response of the desired filter function. And thus, FIR filters can be implimented in quartz. In the SAW resonator filter, all the finger lengths are the full size. Its the spacing between the fingers that determines the filter freq. 73, Don. Mailbox : WB9MJN @ N9HSI.IL.USA.NA AMPRNet : wb9mjn@wb9mjn.ampr.org[44.72.98.19] Internet: wb9mjn%wb9mjn.ampr.org@uugate.aim.utah.edu From wd5ivd@tapr.org Thu Jun 27 08:51:20 1996 Received: (from wd5ivd@localhost) by tapr.org (8.7.5/8.7.3/1.9) id IAA27426 for ss@tapr.org; Thu, 27 Jun 1996 08:51:19 -0500 (CDT) From: Greg Jones Message-Id: <199606271351.IAA27426@tapr.org> Subject: New Info on TAPR Spread Spectrum Page To: ss@tapr.org (Spread Spectrum) Date: Thu, 27 Jun 1996 08:51:19 -0500 (CDT) X-Mailer: ELM [version 2.4 PL25] Content-Type: text Several things have been added to the Spread Spectrum page in the last few weeks. You might want to check them. http://www.tapr.org/ss Plus -- TAPR.ORG has relocated -- with much improved performance. Cheers - greg