From: wa2ise@cbnewsb.cb.att.com (robert.f.casey) Newsgroups: rec.radio.amateur.misc Subject: FT5200 crossband mod file Keywords: mods Message-ID: <1991Oct13.200102.5046@cbfsb.att.com> Date: 13 Oct 91 20:01:02 GMT Sender: news@cbfsb.att.com Organization: AT&T Bell Laboratories Lines: 60 copied from packet: From: n2fwq@wb2gtx.nj.usa.na (DANIEL) To: mods@allbbs Subject: ft5200 crossband mods Tony Lessing KA3KVD 76474,2051 Ken Hoehn/N8NYO [SysOp] 73670,3622 the mod for the FT5200 cross band mod. It goes as follows: 1. Disconnect DC power from radio. 2. Unlatch and remove the front control head. !Do not take apart the control head or the warranty will go *VOID* :-) 3. Remove (6) screws from top cover of radio. 4. Remove (6) screws from bottom cover of radio. 5. Remove top and bottom cover.. being careful of the speaker that will want to fall out. 6. Remove the (2) silver screws (on each side of radio) holding front control head mounting plate to main body of radio. Remove the front mounting plate. 7. Locate and unsolder jumper pad 17. 8. Install the front mounting plate, and top and bottom covers. 9. Reconnect power.... you're ready to go.. 10. To put in xband repeat press and hold the RPT key while turning on the radio. To stop... turn off the radio. !! note !! It is suggested to disconnect the mic when in xband repeat, as it will be "hot". Adjust the volume knob for the desired repeat audio level. Cheers, de Tony - KA3KVD There is 1 Reply. Regarding .... Jumper Pad 17 .... This might seem confusing when first viewing the jumper pads... they are to the right of the 5_strip connector for the face plate and are numbered as follows .. 20 18 16 14 12 10 8 6 4 2 .. 19 17 15 13 11 09 7 5 3 1 You will see that the number 17 is lower than the rest and that there are 2 pads above it... one in line with all the others (this is the correct one) and one that is horizontal and just above the number "17" (this should be left alone) 73 ... Tony It is a bit rough cross-band repeating two repeaters (hardly efficient use of spectrum, now isn't it? (Honest..just testing) Also, there are certain frequency combinations that just don't work, and others that require one, the other, or both sides to transmit at low power. Nice toy...now, a practical application??? Ken :) ----------------------------------------------------------------------------- Note: I haven't tried or verified this, proceed at your own risk. WA2ISE From: wa2ise@cbnewsb.cb.att.com (robert.f.casey) Newsgroups: rec.radio.amateur.misc Subject: FT5200 mods (wideband rx/tx, crossband repeater operation Keywords: mod file Message-ID: <1991Nov3.210959.28264@cbfsb.att.com> Date: 3 Nov 91 21:09:59 GMT Sender: news@cbfsb.att.com Organization: AT&T Bell Laboratories Lines: 40 copied from packet: Msg# TSF Size #Rd Date Time From MsgID To 63936 BN 2529 0 27-Oct 1849 F6DWP 61195_F6KDJ YAESU@WW (NONE) Dual Bander YAESU FT-5200 Modifications for wideband RX/TX VHF/UHF coverage and Cross-band Repeater operation. =============================================================================== First locate the 20 jumpers on the control Unit of the FT-5200. Then short jumpers 1-2-3-6-7 . Some jumpers are still shorted depending upon the country version. Remove the Jumper number 17 for cross-band operation . For resetting the unit press D/MR -- F/W -- REV buttons in the same time and switch on the transceiver. The display must show now 300.000 on the right and 000.000 on the left . You must now program the lower and upper bands limits on RX and TX as follows: After resetting the channel number digit on the left of the display is showing a ""1"" blinking .. With the vfo knob and the MHZ button increment from 000.000 to the desired lower VHF frequency with 1 Mhz steps . The press the D/MR button to lock the frequency . Now the channel digit shows a blinkin""2"". Increment the display to obtain the VHF upper limit . Press again D/MR to lock the frequency and obtain a ""3"" digit channel blinking .. Increment the display value with the vfo knob to fix the TX VHF lower limit . Push D/MR to lock the frequency . The digit channel is blinking with number ""4"" and program the upper TX transmit limit . Press again D/MR , the display is now reversed from left to right and program the UHF TX/RX limits with the same procedure used for teh VHF band. ------------------------------------------------------------------------------ For cross-band operation , press the RPT button when swithching ON the tranceiver . Adjust the audio level with the volume control and balance . ------------------------------------------------------------------------------ For wideband Uhf RX operation the frond end coils with metallic cores must be realigned to spread the sensitivity of the receiver. A swept oscillator with scope should be employed eventually . 73's from F6DWP =============================================================================== Note: I haven't tried or verified this, proceed at your own risk. WA2ISE