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ANTENLER İLE İLGİLİ ÖRNEK MESAJLAR
| From : CT1FMS
To : ANTEN@WW Type/status : B$ Date/time : 16-Jan 09:44 BID (MID) : 1147_CT1FMS Message # : 326926 Title : Circular Polarized Antenna -1- Path: !I6BNW!IK6PYS!IK6RUY!IK4ICZ!I4UJB!IK4VFK!IW4BYK!IW3FPP!I3LUG!IW3GRX! !I3KUH!IW3GS!IW3HPK!IW3SFO!IV3PXL!IV3AVQ!IW3EFI!IW9EXL!PP5BLU!LX0IST! !LX0HST!DB0NEI!DB0ACH!DB0NDK!DB0AIS!DB0ZDF!DB0HOM!F6KDL!F8KOX!F6KNP! !F1DRW!F6KJD!F5JQF!CT1FMS!
From: [email protected] To : ANTEN@WW SUBJECT: Circular Polarized Antenna - part one There has been a request for a series on 'CP' antennas. The term 'CP' eluded me at first as I was not familar with the abriviated designator for circular polarization. At work, we just use the entire words. I'm going to begin this ten part series with the basics. After researching CP designs with a few engineers and fellow hams, I found that they knew very little about the subject. I also found I didn't know quite as much as I thought I did about circular polarization. So starting at the begining will help all out. First, let's discuss the circular polarized wave. There seems to be conflicting standards used by the world of physics and the IEEE. I found this to be true in four reference manuals including the ARRL Antenna Handbook. At least it's stated right up front but biased according to which text you read. We will follow the IEEE/ARRL standard in the following series for obvious reasons. There are two types of circular polarization; right and left. All of us agree up to this point. According to the ARRL Antenna Handbook, the following statement: 'Polarization Sense is a critical factor, especially in EME work or if the satellite uses a circular polarized antenna. In physics, clockwise rotation of an approaching wave is called "right circular polarization," but the IEEE standard uses the term "clockwise circular polarization" for a receeding wave. Amateur terminology follows the IEEE standard, calling clockwise polarization for a receeding wave as right-hand.' Confused yet? I read it five times before it sunk in. Physics uses 'right', IEEE uses 'clockwise', the ARRL follows the IEEE and calls it 'right-hand'. Just remember the 'right-hand' or 'clockwise' is for a receeding wave or one that is going away from you. [You have one minute to flap your lips with your finger and read the above paragraphs again.] ;-) Ok, now we know a reference that we can base "right-hand circular polarization" on. Now I have an experiment for you to try. Obtain a hard rubber ball from the kids or a neighbor's kid and try this: drop the ball with a "right-hand polarization" spin and watch which way the ball spins as it bounces towards you. You'll find it will spin in the opposite direction [this works great with a super ball]. This is exactly what happens in EME work. The "right-hand circular polarized" signal returns in the opposite polarity. The same holds true for passing satellites using circular polarization. An approaching satellite's circular polarized wave will reverse as it passes. Another quote from the ARRL Antenna Handbook states that the circular polarized wave and a linear wave are mathmatically special cases of an elipical wave. When the magnitudes are the same and phase angles are 90 degrees in time, we have circular polarization.
Best 73. Paulo, [email protected] --- End of messsage #326926 to ANTEN from CT1FMS --- From : CT1FMS To : ANTEN@WW Type/status : B$ Date/time : 16-Jan 09:06 BID (MID) : 1148_CT1FMS Message # : 326910 Title : Circular Polarized Antenna -2- Path: !I6BNW!IK6PYS!IK6RUY!IK4ICZ!I4UJB!IK4VFK!IW4BYK!IW3FPP!IW3GRX!I3KUH! !IW3GS!IW3HPK!IW3SFO!IV3PXL!IV3AVQ!IW3EFI!IW9EXL!PP5BLU!LX0IST!LX0HST! !DB0NEI!DB0ACH!DB0NDK!DB0AIS!DB0ZDF!DB0HOM!F6KDL!F8KOX!F6KNP!F1DRW! !F6KJD!F5JQF!CT1FMS!
From: [email protected] To : ANTEN@WW SUBJECT: Circular Polarized Antennas, part 2 One antenna that uses circular polarization is the helical antenna. It comes in two flavors, LHCP and RHCP for left and right hand circular polarized. As stated on the previous posting, RHCP is a clockwise rotation as the wave receeds from the point for transmission. The RHCP helical antenna is phsyically configured this way with the turns of the helix rotating clockwise away from the mounting point. The LHCP helix is phsyically configured counter-clockwise away from the mounting point. The helix is an end-fed antenna. For satellite and EME work, both LHCP and RHCP helix antennas are required for proper signal reception as the polarization changes when the satellite passes overhead or the returning signal from an EME transmission is received. In the next posting, there will be some other CP antennas for you to look at that are used at the Kennedy Space Center. For a refernce of Helical Antennas, read the ARRL Antenna Handbook, pages 19-22 thru 19-33 in the 16th edition. To repost the figures here would require several listings, but an overview will be coming in the series. In general, the helix is very predicable in gain and pattern. Introduced in the 40s, the helical antenna resembles nothing more than a large air-wound coil with characteristics showing its electrical pattern. There are other types of antennas with circular polarization such as the cavity backed sprial which comes in the same flavors, LHCP and RHCP. These type of antennas are commercial grade and seldom used in the amateur world. One strange antenna is the 'twisted yagi' of which I am still trying to find some info on. I don't know if the name is correct, but I have heard it refered to that way. The twisted yagi is nothing more than a yagi with the elements offset in a continous rotating fashion. Each element is positioned about 30 degrees from the one before. They can get rather long for the designed frequency. I'll see what I can dig up on this type.
For true CP design, the choice of antennas are limited. Elipical patterns are most used for satellite and EME use.
Best 73. Paulo, [email protected] --- End of messsage #326910 to ANTEN from CT1FMS ---
From : CT1FMS To : ANTEN@WW Type/status : B$ Date/time : 18-Jan 12:14 BID (MID) : 1149_CT1FMS Message # : 327238 Title : Circular Polarized Antenna -3- Path: !VK7AX!VK7AX!VK7AX!WB0TAX!KA0WIN!PP5BLU!9A0YRB!OK0POK!OK0PPL!DB0RGB! !DB0SL!DB0FSG!DB0AAB!DB0KFB!F8KOX!F6KNP!F1DRW!F6KJD!F5JQF!CT1FMS!
From: [email protected] To : ANTEN@WW SUBJECT: Circular Polarized antennas - part 3 BTW, Jim Grubs passed a posting to me about the 'twisted Yagi' which is called a concentric yagi. Now that I have the name right and a lead on the articles in CQ magazine, I can fill in the rest. Thanks Jim! --------------------------------------------------------------- HELIX: Well, I promised some figures for all of you concerning the helix antenna as it is probably the most popular CP antenna. After researching the subject of helix antennas, I found the design parameters are all basically the same with the only difference being the variables used to describe the different values. The ARRL Antenna Handbook has a very detailed construction dialog. There are plenty of pictures and easy to use formulas. A couple of technical antenna theory books at work and from college tend to bury themselves in mathmatical theory removed from practical application that we require for working models. Theory is good, don't get me wrong, but theory at college level for amateurs that have not been to college, is not good for contruction. It assumes too much on the average amateur in the area of math. For now, I will give the basic design parameters for the helix antenna and then conclude with the some information on the cavity backed spiral.
In the ARRL Antenna Handbook, 16th ed, 19-22, provides about the best description of a helix and how to build one. The Helix has two componets; a ground plane and the helix. It is fed with a coax. The diameter of the ground plane is 0.8 to 1.1 wave lengths in diameter. This section is connected electrically to the coax braid. Since ascii does not provide all those neat little greek letters I'll have to improvise here. C is the circumference of a coiled turn. S is the spacing between one coil and the next. G is the diameter of the ground plane. g is the gap between G and the begining of the coils. AR is the axial ratio D is the diameter of a coil turn. n is the number of turns L is the length of conductor in one turn. w is the wave length. Z is the impedance in ohms Gain is the gain of the antenna (now that was a smart statement) HPBW is the half power bandwidth
C = 0.75w to 1.33w where w = 984/fMHz in ft or 300/fMHz for meters S = 0.2126*C to 0.2867*C G = 0.8w to 1.1w g = 0.12w to 0.13w at 45 degrees to the ground plane. Note: This is similar to the distance between a DE and D1 in a yagi. AR = 2n+1/2n which should be as near to unity as possible. The closer you can get this ratio to one the closer you will have a pure circular pattern. D = C/3.1415927 => 0.2387w to 0.35w n => use AR until you get a balance between a good ratio and a practical length you can handle. AR = 2n+1/2n => n=6 then 13/12 = 1.083333, n=3 then 7/6 = 1.1666, n=10 then 21/20 = 1.05. As you can see there isn't a vast improvement between 6 and 10 turns. n=15 then 31/30 = 1.03333. Not much more here either. L = sqrt[(piD)^2 + S^2] Z = 140*C ohms which is 0.75w*140 to 1.33w*140 ohms HPBW = 52/(C*sqrt[n*S]) degrees Gain = 11.8 + 10log((C^2) *n*S)) First nulls beamwidth = 115/(C*sqrt[n*S]) degrees Pitch angle between the coils should be 12 to 16 degrees or arctan(S/C)
-------------------------------------------------------------- Heres some stats from an antenna we use at the EMLab. The antenna is a broadband cavity backed spiral antenna made by EM systems, model A2200. It's good from 1 to 18 GHz with an SWR of 1.8:1 over the entire band. Diameter = 6.85-in gain = 0 dB minimum 5.5 dB max Polarization = LHC or RHC axial ratio = 3 dB 3dB Beam width = 80 degrees MIL-E-16400 class 2 equip.
Best 73. Paulo, [email protected]
--- End of messsage #327238 to ANTEN from CT1FMS ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 16-Jan 09:20 BID (MID) : 3679_KF4BPX Message # : 326916 Title : 80,160 VERTICAL Path: !I6BNW!IK6PYS!IK6RUY!I6DQE!IW4BYK!IW3FPP!I3LUG!I3XTY!IZ3CNM!IW3EFI! !IW9EXL!PP5BLU!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 80 - 160 VERTICAL
l l l l l l l l l l l<- 60' Vertical l l l l Gamma match l 1' / 0------| l |<-12'6" l |<-(+) l | l 4060 | 1095 l pf | pf ------------------------------(-)-|(--"---|(--O<-coax-------------------- Ground leval l\------------/(-) l \ | / \ | / Under ground 2-inches ______\./______ <- 6-130' radials / \ 6-64' radials / \ / \ ------------------------------------------------------------------------ An 80-meter quarter-wave vertical antenna alone with a gomma matching arrangement con also be loaded well 160-meters. The gamma section is attached at 12.5 feet above ground. A piece of 1-inch flat aluminum one foot in length joins this point to the top of the vertical section of the gamma. In fact, the vertical section can be a 20-foot telescoping TV mast, the top section of which is extended 2 1/2" for the total of 12'1/2" feet. Excellent two-band matching is obtaind by the use of a two-capactor impedance devider at the base of the gamma section. The low-angle performance is very much the function of the radial system. The use of a capacitive divider at the base permits a convenient way of tuning the ganna section and permits operaton on more than one band. One need only attach an SWR meter at the base of the vertical and jockey the capacitors back and forth to obtain a minimum SWR. ------------------------------------------------------------------------ Converting Inch's & Feet to CM = 1 inch (1") = 2.5 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 Thanks to the 73 Dipole and Long-wire Antennas Book. Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #326916 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 01-Feb 11:07 BID (MID) : 3452_KF4BPX Message # : 329460 Title : 5EL 6M BEAM Path: !VK7AX!VK5ASF!VK5ASF!PP5BLU!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW
5 element beam 2" OD boom. --------------- ---------------- ---------------- Element Setting #1 50.5 Setting #2 51.75 Setting #3 53.25 Spacing =============== ================ ================ ========== Ref. 59 1/8" > 57 5/8" > 56" Ref.-0-1 1/2" De. 55 7/8" > 54 1/4" > 51 7/8" De - 47 1/4" D-1 52 1/2 > 51 1/8" > 49 5/8" D1 - 40 1/4" D-2 51 1/8" > 49 7/8" > 48 1/2" D2 - 64 3/4" D-3 51 1/8" > 49 7/8" > 48 1/2" D3 - 62 5/8" D3-end 1 1/2"
Adding a gamma match to this antenna, put the gamma 1 1\2" from the CL. to CL. Connection point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support.
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
Some Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 cm --- End of messsage #329460 to ANTENN from KE4IQQ --- (1) TA2EM BBS (H for help) > From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 01-Feb 11:07 BID (MID) : 3453_KF4BPX Message # : 329459 Title : 6EL 6M BEAM Path: !VK7AX!VK5ASF!VK5ASF!PP5BLU!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 6 element 6m beam 2" OD boom.
--------------- ---------------- ---------------- Element Setting #1 50.5 Setting #2 51.75 Setting #3 53.25 Spacing =============== ================ ================ ======== Ref. 59 1/8" > 57 5/8" > 56" Ref.-0-1 1/2" De. 55 7/8" > 54 1/4" > 51 7/8" Ref - DE 47 1/4 D-1 52 1/2 > 51 1/8" > 49 5/8" De - D1 40 1/4" D-2 51 1/8" > 49 7/8" > 48 1/2" D1 - D2 64 3/4" D-3 51 1/8" > 49 7/8" > 48 1/2" D2 - D3 62 5/8" D-4 52" > 50 5/8" > 49 1/4" D3 - D4 70 7/8" D4-end - 1 1/2"
Adding a gamma match to this antenna, put the gamma 1 1\2" from the CL. to CL., Connection point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support.
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
Some Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 cm --- End of messsage #329459 to ANTENN from KE4IQQ --- (1) TA2EM BBS (H for help) > From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 01-Feb 11:06 BID (MID) : 3450_KF4BPX Message # : 329453 Title : 4EL 6M BEAM Path: !VK7AX!VK3BBS!VE7KIT!KA6EYH!KB7FRV!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN! !KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NA To : ANTENN@WW
4 element 6m beam 1 1/2" OD boom --------------- ---------------- ---------------- Element Setting #1 50.5 Setting #2 51.75 Setting #3 53.25 Spacing =============== ================ ================ ======= Ref. 59 1/8" > 57 5/8" > 56" DEF 1 1/2" De. 55 7/8" > 54 1/4" > 51 7/8" DEF-DE 47 1/4" D-1 52 1/2 > 51 1/8" > 49 5/8" DE - D1 40 1/4 D-2 51 1/8" > 49 7/8" > 48 1/2" D1 - D2 64 3/4
Adding a gamma match to this antenna, put the gamma 1 1\2" from the CL. to CL. DE like this. Connecting point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support.
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
Some Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 cm --- End of messsage #329453 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 06-Feb 15:31 BID (MID) : 4394_KF4BPX Message # : 330484 Title : 7 EL. 6M BEAM Path: !VK7AX!VE1SMU!N5VDA!KA6EYH!PP5BLU!HA3PG!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN! !KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 7 element 6m beam 2" OD boom. REF. DE D-1 D-2___ D-3___ _ l l l l l ^ l l l l l | l l l l l see l l l l lchart l l l l l v - - - - --- - l l l l l ^ l l l l l | l l l l l | l<---- 35''------->l<----- 35''-------->l<-----35''---->l<----35''---->l | ======================================================================== 48" l l l l l | l l l l l | l l l l l | l l l l l v - - - - --- - l l l l l l l l l l l l l l l l l l l l l l l l l
------------------------------------------------------------------------------
D-4___ D-5___ ___ l | ^ l | see l | chart l | | | | v - --- --- l | ^ l | | l | | <----- 35"------->l <----- 35"------>| | >======================================= 48" l | | l | | l | | l | v - --- --- l l l | l | l | l |
-------------------------------------------------------------------------- VERTICAL POLARIZATION --------------- ---------------- ---------------- Setting #1 50 Setting #2 51.5 Setting #3 53 51.5 MHz 53 MHz 54 MHz =============== ================ ================ Ref. 37 1/2" > 35 1/2" > 33 1/2" De. 30 3/4" > 30 3/4" > 30 3/4" D-1 30" > 28" > 26" D-2 29 1/2" > 27 1/2" > 25 1/2" D-3 29" > 27" > 25" D-4 27 1/2" > 25 1/2" > 23 1/2" D-5 12 5/8" > 15 5/8" > 18"
--------------- ----------------- ---------------- Setting #1 50 Sertting #2 51.5 Setting #3 53 51.5 MHz 53 MHz 54 MHz =============== ================= ================ Ref. 35 1/8" 34" 32 1/8" De. 31 3/4" 28 3/8" 26 7/8" D-1 29 3/4" 27" 26 1/4" D-2 29 3/4" 24 7/8" 34 5/8" D-3 25 5/8" 24 1/2" 23 1/2" D-4 23 1/2" 21 1/2" 20 1/2" D-5 15 5/8" 16 1/2" 17"
Adding a gamma match to this antenna, put the gamma 1 1\2" from the CL. to CL. DE like this. _ (_)===========================================v | || Stand off | 1 1\2" O========I============ ^ ^ connection point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support. see below. ___ ___ | | | | | | | | ------------------------------------------------- | | | | Drill trough radile | | | | ------------------------------------------------- ============================= | | | | | | | | . . Boom . . . . . . . . . . . . . . . . . . . . . . . .
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #330484 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 16-Jan 09:10 BID (MID) : 3677_KF4BPX Message # : 326912 Title : 40,80 VERTICAL Path: !I6BNW!IK6PYS!IK6RUY!IK4ICZ!I4UJB!IK4VFK!IW4BYK!IW3FPP!IW3GRX!I3KUH! !IW3GS!IW3HPK!I3NXU!IW3HHD!IW3EFI!IW9EXL!PP5BLU!WB0TAX!W4DPH!W4DPH! !K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 40 - 80 VERTICAL
l l l l l l l l l l l<- 48' Vertical TV mast l l l l Gamma match l 1' / 0------| l |<-10' l |<-(+) l | l 1095 | 730 l pf | pf ------------------------------(-)-|(--"---|(--O<-coax-------------------- Ground leval l\------------/(-) l \ | / \ | / Under ground 2-inches ______\./______ <- 6-64' radials / \ 6-34' radials / \ / \ ------------------------------------------------------------------------ An 40-meter vertical antenna alone with a gomma matching arrangement can also be loaded well 80-meters. The gamma section is attached at 10' feet above ground. A piece of 1-inch flat aluminum one foot in length joins this point to the top of the vertical section of the gamma. Excellent two-band matching is obtaind by the use of a two-capactor impedance devider at the base of the gamma section. The low-angle performance is very much the function of the radial system. The use of a capacitive divider at the base permits a convenient way of tuning the ganna section and permits operaton on more than one band. One need only attach an SWR meter at the base of the vertical and jockey the capacitors back and forth to obtain a minimum SWR. ------------------------------------------------------------------------ Converting Inch's & Feet to CM = 1 inch (1") = 2.5 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 Thanks to the 73 Dipole and Long-wire Antennas Book. Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #326912 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 25-Jan 15:20 BID (MID) : 4761_KF4BPX Message # : 328524 Title : 3 EL 6M ANTENNA Path: !VK7AX!VK7AX!VK7AX!KB7FRV!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 3 element 6m beam 1 1/2 OD boom. REF. DE D-1___ l l l ^ l l l | l l l | l l l | l l l see l l lchart l l l | l l l | l l l | l<-------- 47 1/4" ------->l<-------- 40 1/4" ---------------->l v o========================================================================o--- l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l
--------------- ---------------- ---------------- Setting #1 50.5 Setting #2 51.75 Setting #3 53.25 =============== ================ ================ Ref. 59 1/8" > 57 5/8" > 56" De. 55 7/8" > 54 1/4" > 51 7/8" D-1 62 1/2 > 51 1/8" > 49 5/8" ------------------------------------------------------------------ Beta match and balum driven element: Boom (Insolator see below) Balum & coax conection : / Stand off \ v / / ==============|===||=|==0==|=||===|==/============= Bata match rod |<--------|<--------|</ ^__ 2 3/16" 7/16x56 1/2 v____|_________|_________|____v ^ ^ ^ ^ ^ : 1 :....2....:....2....: 1 : ^............56 1/2"..........^ #1 #2 Setting: (50.5 mc) 17 1/4" 11" (51.75 mc) 17 1/4" 11" (53.25 mc) 16 3/4" 10-11/16" Center section & coax conection: Mounting plate & Insolator: Connect all (-) from coax /====\ __v______ to plate. Balum 1/4 wavelength,>:: :: element | o o | element 9913 coax 6m, tape to :: :: --------|-- | | --|-------- boom. :: :: ======|====::===::====|====== Fiberglas ::||:: --------|-- | \ --|-------- /:||:\ ^ | o o |\ / :||: \ Clamp --^------ U clamps el. +/ -\||/- \+ ^ U clamps mast ===============|===||=|====|=||===|==================== ||\- /+\ ||: / two half c clamps, two nut & bolts Boom->||:/ ||:: ::coax to transmiter :: ------------------------------------------------------------------------ Instaling gama match. _ (_)===========================================v | || Stand off | 1 1\2" O========I============ ^ ^ connection point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support. see below. ___ ___ | | | | ========================= ------------------------------------------------- | | | | Drill trough radile ------------------------------------------------- | | | | . . Boom . . . . . . . . . . . . . . . . . . . .
Adding plates for mounting radils (plate & U bolt) Mast U bolts 2 each -------------------------/-------- | O O | | O O<----|-radil U bolts 2 each -------------:---------------------:--------------- : radil : -------------:---------------------:--------------- | O O | | O O | ---------------------------------- \ plate up to 1/4 inch thick adjust to the support needed. Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #328524 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 30-Jan 18:41 BID (MID) : 2973_KF4BPX Message # : 328966 Title : 3EL 6M CH Path: !KL7IFW!N7NEI!KF9UG!N8ZFM!W4IE!KI4ZJ!KF4HFR!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW
CUSHCRAFT - A50-3S 3 ELEMENT 6 METER BEAM REF I DE I I Dir I <---101.6---> I <---69.8---> I I I I I I-| I I I | <- Reddi I I I_| match I REAR ---> =I==========[=]==I==============I= ---> FRONT I = I I I 27.94 from DE I I I mast = I I I pipe = I I I mount = I I I = I I BOOM from front to rear is 182.9 cm of 3.5 x20.3 cm OD. Element size X 2 For Horizontal Polarization
50MHz 51MHz 52MHz 53MHz 54MHz
REF (cm) 87.63 87.63 82.55 82.55 77.5 DE (cm) 79.37 76.83 74.29 71.75 69.21 D-1 (cm) 72.39 67.31 67.31 67.31 62.23 Set (cm) 43.18 39.69 39.05 38.73 38.73 X (cm) 12.06 12.06 11.11 12.06 12.06 Reddi match assembly \----------------------------------------------------\ \----------------------------------------------------\ | space from element to match | | | 3.5 cm | | [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[============(0) | | | | |<---- X --->| | | |<----------------------- SET ------------>| NOTE:> ( using for Vertical the match should point skyward ) Element size X 2 For Vertical Polarization 50MHz 51MHz 52MHz 53MHz 54MHz REF (cm) 87.63 87.63 82.55 82.55 77.2 DE (cm) 79.37 79.37 79.37 74.61 72.07 D-1 (cm) 72.39 72.39 67.31 67.31 62.23 SET (cm) 43.18 40.64 43.18 44.45 44.45 X (cm) 10.16 7.62 10.79 13.97 12.7
BBS KE4IQQ @ KF4BPX.#OKE.FL.USA.NORM 73s DE JACK PHELPS A.A.A.C. member # 1
--- End of messsage #328966 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 30-Jan 18:41 BID (MID) : 2971_KF4BPX Message # : 328964 Title : 3EL 40M YAGI Path: !KL7IFW!N7NEI!KF9UG!N8ZFM!W4IE!KI4ZJ!KF4HFR!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 3 element 40m, boom length very, 2" boom.
1/4 WL. Spacing wavelength Element Reflector Director ---------------------------------- Band | 234/f | 492/fl | 450/fu | 0.1 | 0.15 | 0.2 | 0.25 | ======================================================================== 40 | 32'9" | 70' | 81'8" | 13'8" | 20'6" | 27'4" | 34'2" |
Adding a gamma match to this antenna, put the gamma 2 1\2" from the CL. to CL. Connection point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support.
Thanks to the 73 Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
Some Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 cm
--- End of messsage #328964 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 30-Jan 18:41 BID (MID) : 2972_KF4BPX Messager 328966 # : 328967 Title : 3EL 20M YAGI Path: !KL7IFW!N7NEI!KF9UG!N8ZFM!W4IE!KI4ZJ!KF4HFR!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 3 element 20m, boom length very, 2" OD.
1/4 WL. Spacing wavelength Element Reflector Director ---------------------------------- Band | 234/f | 492/fl | 450/fu | 0.1 | 0.15 | 0.2 | 0.25 | ======================================================================== 20 | 16'6" | 35'1" | 31'4" | 6'11" | 10'5" | 13'9" | 17'4" |
Adding a gamma match to this antenna, put the gamma 2 1\2" from the CL. to CL. Connection point with center core of coax to gamma sheld to antenna. Gamma: Center rodr 328964 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support.
Thanks to the 73 Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
Somr 328921 e Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 cm
--- End of messsage #328967 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 30-Jan 18:41 BID (MID) : 2970_KF4BPX Message # : 328965 Title : 3EL 15M YAGI Path: !KL7IFW!N7NEI!KF9UG!N8ZFM!W4IE!KI4ZJ!KF4HFR!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 3 element 15m, boom length very, 2" OD.
1/4 WL. Spacing wavelength Element Reflector Director ---------------------------------- Band | 234/f | 492/fl | 450/fu | 0.1 | 0.15 | 0.2 | 0.25 | ======================================================================== 15 | 11' | 23'5" | 20'11" | 4'8" | 6'11" | 9'3" | 11'6" |
Adding a gamma match to this antenna, put the gamma 2 1\2" from the CL. to CL. Connection point with center core of coax to gamma sheld to antenna. Gamma: Center rod 1/4" x 24" Poly tube 3/16" x 10" Aluminum tube 1/2" x 9" flaton 1" and drill for conection.
Use 1 1/2" or 2" U - clamps to secure the radials to the boom. The crose bar of the clamp is layed on top of the radials for support, one solid center section or for split radials, add a 8 inch aluminum insert at this point for added support.
Thanks to the 73 Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
Some Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 cm
--- End of messsage #328965 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 25-Jan 15:20 BID (MID) : 4760_KF4BPX Message # : 328523 Title : 33 EL 432 ANTENNA Path: !VK7AX!VK7AX!VK7AX!KB7FRV!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW
Optimized 432 - meter Yagi desigins (For 432 Mhz and element lengths are for 3/16 in. diameter,) To peak the Yagi for use on 435 Mhz (for satellite use). you may want to shorten all elements by 2 mm. To peak it for use on 438 Mhz (ATV), shorten all elements by 4 mm. For FM 440 Mhz to 450 Mhz, shorten all elements by 10 mm. The driven element may have to be adjusted if the element lengths are shortened. Note: Boom support will be reqired. ----------------------------------- 33 - El -- 24 ft.(7410 mm). long boom. Forward gain 19.9 Lengths given in millimeters to allow percise duplication. El. El. El. No. position Length (mm from (mm) rear of boom) 5 section Boom all 0.049 wall 6061-T6 tubing. Insert boom sections 4" Ref. 30 348 DE 134 342 Boom lengths: #1 section boom 1" OD + 1479 mm D-1 176 323 D-2 254 313 D-3 362 307 #2 section boom 1 1/8" OD + 1444 mm D-4 496 303 D-5 652 299 D-6 828 297 #3 section boom 1 1/4" OD + 1575 mm D-7 1020 295 D-8 1226 293 D-9 1444 291 #4 section boom 1 1/8" OD + 1480 mm D-10 1672 290 D-11 1909 288 D-12 2152 287 #5 section boom 1" OD + 1472 mm D-13 2403 286 D-14 2659 285 D-15 2920 284 D-16 3184 284 D-17 3452 282 D-18 3723 282 D-19 3997 281 D-20 4272 280 D-21 4550 278 D-22 4828 278 D-23 5109 277 D-24 5390 277 D-25 5672 276 D-26 5956 275 D-27 6239 274 D-28 6524 274 D-29 6809 273 D-30 7094 273 D-31 7380 272 ------------------------------------------------------------------------- 33 el. Boom Contstruction lengths.
Balance for mast clamp location | No. 8-32 screw | Slot and use Boom (4 places) | clamp (4 places) Boom support ---. v (v) v .--- support here v __________________ v here -----------=#==+=========|_#_+__________+_#_|=========+==#=------------
^ ^ ^ ^ ^ ^ |- 1469 mm -|-- 1434 mm --|---- 1575 mm -----|-- 1470 mm --|- 1462 mm -| |---------2932 mm --------| |--------------- 4507 mm --------------------| |-------------------- 5941 mm -----------------------------| |------------------------------- 7410 mm ------------------------------| -------------------------------------------------------------------------- Element mounting.
The elements are installed through the boom useing plastic insulators between the el. and boom. Stainless steel push-nut retaining rings hold the el. in place.
------------------------------------------------------------------------- Details for the driven element. <------------------------------- 342 mm -----------------------------> <-----76 mm---->v clamp 0.03 alum. 3/8" wide <---- 76 mm -----> ----------------|-----------------( )--------------|------------------ < 40 mm >------|---------------o| .>|o------------|-----\ 14 mm ^ ^ |___| \ ^ Solder T wire 122 1" Balum T wire 136 mm length of lug mm length of ^ #12 wire make straight portion no. 12 wire. | of T wire 122 mm long; form | and solder to N-connecter. | Note: T-wire are not use UG-58a/u parallel to connector driven element mounted on small bracket.
Blum made from UT-141 copper-shielded coax, RG-303 or RG-142/u taflon- insulated cable could be used. --==|======================================================|==-- ^ |< 233 mm shield >| ^ | center 5 mm core Dielectric
Driven element side
looking > solder center of the UG-58a/u and right side if the Balum then to right driven element. left side of the Balum solder to left driven element.
19 mm - Centerline of driven element to Centerline of - 15 mm v rear face of n-connector bracket. n-connector v | |_ above boom. -- /-|_ <UG-58a/u /--|------------------<Balum =======O====\============================ \ Solder log attatched to the bottom screw on connector, bend 90 d and solder to UT-141 shield.
Thanks to the ARRL Antenna book. Offared by Jack - KE4IQQ - AAAC #1 Address: KE4IQQ @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #328523 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 18-Jan 15:41 BID (MID) : 3988_KF4BPX Message # : 327298 Title : 2M 13EL YAGI Path: !VK7AX!HB9GL!SV1AAW!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW
13 Element 2m REF. DE D-1 D-2 D-3 D-4 D-5 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l<-15 1/2"->l<8 11/16">l<-- 9"-->l<-14 7/8"->l<- 16 1/4 ->l<- 16 1/4 ->l ========================================================================> l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l
------------------------------------------------------------------------------
D-6 D-7 D-8 D-9 D-10 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l <- 16 1/4" ->l<- 16 1/4"->l<- 16 1/4 ->l<- 16 1/4 ->l<- 16 1/4 ->1 >==================================================================> l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l -------------------------------------------------------------------------- D-11 D-12 D-13 l l l l l l l l l l l l l l l l l l l l l l l l l l l l<- 16 1/4" ->l<- 16 1/4" ->l <=============================> l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l ----------------------------------------------------------------------------- -------------------- -------------------- Setting #1 144-146 Setting #2 144.5-148 ==================== ==================== Ref. 40 3/16" Ref. > 39 3/4" De. 39 1/4" De > 38 7/8" D-1 37 7/16" D-1 > 37 7/8" D-2 36 9/16" D-2 - D-3 > 36 1/4" D-3 36 1/16" D-4 > 35 3/4" D-4 35 9/16" D-5 > 35 1/4" D-5 - D-9 35" D-6 - D-13 > 34 5/8" D-10 35 9/16" D-11 36 1/16" Frequency, MHz 144-148 Forward Gain, db 15.8 Front to back rato, db 26 Boom Alum. tubing 1 ea. 1-1/8" x 48" 1 ea. 1-1/4 x 72" 1 ea. 1-1/8" x 72" Adding a gamma match to this antenna, put the gamma 1" from the CL. to CL. DE like this. _ (_)===========================================v | || | 1" ====================== ^ Gamma tubing: Poly tube 5/16" x 4" (8 x 10.2 cm) Match rod 3/16" x 3 3/16" (.5 x 8.1 cm) Aluminum tube 3/8" x 3 1/2" (.9 x 14 cm) The center core and taflon of RG-8u coax can be used for tube & rod leave the center core longer to connect to.
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #327298 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 05-Nov 18:31 BID (MID) : 2508_KF4BPX Message # : 242060 Title : 7 EL. 2 METER ANTENNA (This message has been read 2 times so far in this BBS.) Path: !ZL2TZE!GB7PLY!I4UJB!IK4ICZ!IW4CNQ!I3NXU!IK2QCA!IW2FPO!HB9OK!HB9H! !HB9OS!DB0KCP!DB0GPP!DB0LX!DB0RBS!DB0SEL!DB0ZDF!DB0SRS!DB0ABH!DB0RGB! !OK0PPL!OK0PHL!SP6KBL!SR6DOP!SO9ODC!SR3KWX!SP9YZT!KA3FMO!WB0TAX!W4DPH! !W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM ENTER = continue, A = Abort, N = Next, C = cancel paging --> To : ANTENN@WW
REF. DE D-1 D-2 D-3 D-4 D-5_ l l l l l l l ^ l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l<-14 1/4"->l<-14 1/4"->l<-14 1/4->l<-14 1/4"->l<-14 1/4 ->l<-14 1/4->ltip <=======================================================================>to l l l l l l ltip l l l l l l lsee l l l l l l lchart l l l l l l l | ENTER = continue, A = Abort, N = Next, C = cancel paging --> l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l v l l l l l l l _
------------------------------------------------------------------------------
-------------------- Setting ==================== Ref. 40 1/4" De. 38 7/16" D-1 36 3/4" D-2 36 1/4" D-3 35 3/4" ENTER = continue, A = Abort, N = Next, C = cancel pagi ng --> D-4 35 1/4" D-5 34 3/4"
Frequency 144-146 Forward gain.db 11.1 Frount to back ratio db 20 -------------------------------------------------------------------------- Adding a gamma match to this antenna, put the gamma 1" from the CL. to CL. DE like this. _ (_)===========================================v | || | 1" ====================== ^
KE4IQQ @ KF4BPX.#OKE.FL.USA.NOAM ENTER = continue, A = Abort, N = Next, C = cancel paging --> =========================================================================== If you would like to make a 2M Antenna, here is the setup for the 7 el. Watch for the other antennas that I will send. If you would like the plans for up to 6 el. 6m let me know. If you have made any type of antenna please send me a ascii art copy and all info on them. If you would like to join the Ascii Art Antenna club and get your club # contact me at my BBS address. DE - Jack - KE4IQQ @ KF4BPX.#OKE.FL.USA.NOAM - AAAC #1 ===========================================================================
--- End of messsage #242060 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 25-Jan 15:20 BID (MID) : 4763_KF4BPX Message # : 328525 Title : 3EL 2M ANTENNA Path: !VK7AX!VK7AX!VK7AX!KB7FRV!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 3 EL. 2 METER ANTENNA REF. DE D-1_ l l l ^ l l l | l l l | l l l | l l l | l l l | l l l | l l l | l l l | l<-14 1/4"->l<-14 1/4"->l |tip <=========================>|to l l l |tip l l l |see l l l |chart l l l | l l l | l l l | l l l | l l l | l l l v l l l _
------------------------------------------------------------------------------ Element spacing --------------------------------------- Setting Inches CM ======================================= Ref. 40 1/4" 102.2 De. 38 7/16" 97.6 D-1 36 3/4" 93.3
Frequency 144-146 ------------------------------------------------------------------------ Adding a gamma match to this antenna, put the gamma 1" from the CL. to CL. DE like this. _ (_)===========================================v | || | 1" ====================== ^ Gamma match Poly tube 1 ea 5/16" x 4" Match rod 1 ea 3/16" x 3/8" x 3-3/16" Alum. tube 1 ea 3/8" x 5- 1/2" Put the poly tube on the match rod then put this into the alum. tube. One end of the match rod should be flaton and drilled for mount bolt. From coax conecter plate to stand off clamps is 4-1/2"
--- End of messsage #328525 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 31-Jan 17:34 BID (MID) : 3449_KF4BPX Messager 329276 b # : 329372 Title : 4EL 2M BEAM Path: !I6BNW!IK6PYS!IK6RUY!I6DQE!IW4BYK!IW3FPP!I3LUG!I3XTY!IZ3CNM!IW3EFI! !IW9EXL!PP5BLU!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX!
From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 4 EL. 2 METER ANTENNA REF. DE D-1 D-2_ l l l l ^ l l l l | l l l l | l l l l | l l l l | l l l l | l l l l | l l l l | l l l l | l<-14 1/4"->l<-14 1/4"->l<-14 1/4->l | tip <====================================>| to l l l l | tip l l l l | see l l l l | chart l l l l | l l l l | l l l l | l l l l | l l l l | l l l l v l l l l _
------------------------------------------------------------------------------ Element spacing --------------------------------------- Setting Inches CM ======================================= Ref. 40 1/4" 102.2 De. 38 7/16" 97.6 D-1 36 3/4" 93.3 D-2 36 1/4" 92.1
Frequency 144-146 ------------------------------------------------------------------------ Adding a gamma match to this antenna, put the gamma 1" from the CL. to CL. DE like this. _ (_)===========================================v | || | 1" ====================== ^ Gamma match Poly tube 1 ea 5/16" x 4" Match rod 1 ea 3/16" x 3/8" x 3-3/16" Alum. tube 1 ea 3/8" x 5- 1/2" Put the poly tube on the match rod then put this into the alum. tube. One end of the match rod should be flaton and drilled for mount bolt. From coax conecter plate to stand off clamps is 4-1/2"
--- End of messsage #329372 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 06-Feb 10:19 BID (MID) : 4393_KF4BPX Message # : 330419 Title : 7 EL. 2M BEAM Path: !I6BNW!IK6PYS!IK6RUY!IW0QMN!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW 7 EL. 2 METER ANTENNA REF. DE D-1 D-2 D-3 D-4 D-5 _ l l l l l l l ^ l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l<-14 1/4"->l<-14 1/4"->l<-14 1/4->l<-14 1/4->l<-14 1/4->l<-14 .14->l | tip <=====================================================================> | to l l l l l l l | tip l l l l l l l | see l l l l l l l | chart l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l | l l l l l l l v l l l l l l l _
------------------------------------------------------------------------------ Element spacing --------------------------------------- Setting Inches CM ======================================= Ref. 40 1/4" 102.2 De. 38 7/16" 97.6 D-1 36 3/4" 93.3 D-2 36 1/4" 92.1 D-3 35 3/4" 90.1 D-4 35 1/4" 89.5 D-5 34 3/4" 88.3
Frequency 144-146 ------------------------------------------------------------------------ Adding a gamma match to this antenna, put the gamma 1" from the CL. to CL. DE like this. _ (_)===========================================v | || | 1" ====================== ^ Gamma match Poly tube 1 ea 5/16" x 4" Match rod 1 ea 3/16" x 3/8" x 3-3/16" Alum. tube 1 ea 3/8" x 5- 1/2" Put the poly tube on the match rod then put this into the alum. tube. One end of the match rod should be flaton and drilled for mount bolt. From coax conecter plate to stand off clamps is 4-1/2" ----------------------------------------------------------------------- Thanks to ARRL Antenna book. Offered by: Jack - KE4IQQ - AAAC #1 Adress: KF4BPX.#OKE.FL.USA.NOAM
Some Antennas only come shown in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric - 1 inch (1") = 2.54 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 = 106.7 --- End of messsage #330419 to ANTENN from KE4IQQ ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 22-Jan 09:19 BID (MID) : 4598_KF4BPX Message # : 327769 Title : 2M 1/4 WAVE QUAD Path: !I6BNW!IK6PYS!IK6RUY!IW0QMN!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW From : KD6KZP Subject : 2MTR QUAD PLANS, 1/4 WAVE HELLO EVERYONE, SINCE SO MANY PEOPLE HAVE ASKED ABOUT MY PLANS, I AM GOING TO TRY TO SEND THEM OUT OVER PACKET....WELL HERE GOES, I SUGGEST YOU PRINT THEM IN 80 COLLUMNS OR YOU WON'T BE ABLE TO UNDERSTAND THEM. MATCHING NETWORK (DRIVEN) <---5.16"--> <---5.42"----> ( wire element ............ .............. ( : 3 1/2" peice . . . . ( -......... twin lead . . 5.16" . . ( \ :end shorted . . . . 5.42" ( +..\.....: . . . . ( wire \ \ ............ . . ( element: 1-20 pf variable DRIVEN ELEMENT .............. ( \ capacitor REFLECTOR ( shield ( of coax (---------------------------- : : : : Multiply plans by 4 for : : full wave. Full wave : ....................................: capacitor 9-35 pf. : : Distance between elements :<------16" always------------------->: always the same. : : : :
Thank you and 73's...if you would like more detailed plans and a letter of instruction, send a self addressed stamped envelope to: RICHIE KENDRICK KD6KZP, 2506 TORRID AVE., MODESTO CA. 95358...FOR ANY TECHNICAL ADVICE SEND A PACKET TO ME AT KD6KZP @ WA6KTK-2. --- End of messsage #327769 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 12-Jan 11:10 BID (MID) : 1229_KF4BPX Message # : 253841 Title : VHF & UHF QUAGI AAAC #1
Quagi Optimized 144.5 MHz, 147 MHz, 222 MHz, 432 MHz, 446 MHz. Table #1 ------------------------------------------------------------------------ 8 - El. Quagi Element Frequency Lengths 144.5 MHz 147 MHz 222 MHZ 432 MHZ 446 MHZ
Ref.#1 86 5/8" 85" 56 3/8" 28" 27 1/8" DE #2 82" 80" 53 1/2" 26 5/8" 25 7/8" DI 35 15/16" to 35 5/16" to 23 3/8" to 11 3/4" to 11 1/16" to 35" in 34 3/8" in 22 3/4" in 11 7/16" in 11 1/16" in 3/16" steps 3/16" steps 1/8" steps 1/16" steps 1/16" steps Spacing: R-DE 21" 20 1/2" 13 5/8" 7" 6.8" DE-D1 15 3/4" 15 3/4" 10 1/4" 5 1/4" 5.1" D1-D2 33" 32 1/2" 21 1/2" 11" 10.7" D2-D3 17 1/2" 17 1/8" 11 3/8" 5.85" 5.68" D3-D4 26.1" 25 5/8" 17" 8.73" 8.46" D4-D5 26.1" 25 5/8" 17" 8.73" 8.46" D5-D6 26.1" 25 5/8" 17" 8.73" 8.46" Stacking distance between bays: 11" 10'10" 7'1 1/2" 3'7" 3'5 5/8" #1 All no. 12 (electrical) wire, closed loop. #2 All no. 12 wire loop, fed at bottom. Table #2 ------------------------------------------------------------------------ 432 MHz, 15 Element. Long Boom Data. Element Lengths. Interelement Spacing Inches Inches R 28" R - DE 7" D E 26 5/8" DE - D1 5 1/4" D-1 11 3/4" D-1 - D2 11" D-2 11 11/16" D-2 - D3 5 7/8" D-3 11 5/16" D-3 - D4 8 3/4" D-4 11 9/16" D-4 - D5 8 3/4" D-5 11 1/2" D-5 - D6 8 3/4" D-6 11 7/8" D-6 - D7 12" D-7 11 3/8" D-7 - D8 12" D-8 11 5/16" D-8 - D9 11 3/4" D-9 11 5/16" D-9 - D10 11 1/2" D10 11 3/4" D10 - D11 9 3/16" D11 11 3/16" D11 - D12 12 3/8" D12 11 1/8" D12 - D13 13 3/4" D13 11 1/16" (Note: Do not aluminum for the Boom, must be a nonconductor.) Boom: 1 x 2 in. x 12 ft. Douglas Fir, tapered to 5/8 in. at both ends. Driven element No. 12 TW copper wire loop in square configuration, fed at bottom center with type N connecter and 52 ohms coax. Reflector: No. 12 TW copper wire loop, closed at bottom. Directors: 1/8 in. rod passing through boom. ------------------------------------------------------------------------ The 144 MHz version is usally built on a 14 foot, 1 x 3 in. boom, with the boom tapered to 1 in. both ends. Clear pine is the best because of it's lightweight, but construstion grade Dougles fir works well. At 222 MHz he boom is under 10 foot long, and most builders use 1 x 2 or (preferably) 3/4 x 1 1/4 in. pine molding stock. At 432 MHz, except for longboom versions, the boom should be 1/2 in. thick or less. Be sure to measure all elements corectly 1/8" error results in performance deterioration. Tightly coil several turns of the feed line near the feed point to limit line radiation. In any case, the feed line should be kept at right angles to the antenna. Run it from the driven emement to the supporting mast and then up or down perpendicularly for best results. ------------------------------------------------------------------------ R and DE mounting: Wood or Plexiglas : : ------------------------------------------ | : o : | | O : boom : O | | wire : o : wire | ------------------------------------------ : :
=========================================================================== If you would like to make an Antenna, Watch for the antennas that I will send. If you would like the plans from 220 up let me know. I NEED FOR ANTENNA BUILDERS THAT HAVE MADE DIFFERENT TYPES OF ANTENNAS SEND ME A ASCII ART COPY AND ALL INFO ON THEM, WHERE I CAN EXPAND THE CLUB COLLECTION. Thanks for your help. If you would like to join the Ascii Art Antenna club and get your club # contact me at my BBS address. =========================================================================== Some antennas come only in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric: 1 inch (1") = 2.5 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 cm = 106.7 cm
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
From : N2ZKX To : ALL@WW Type/status : BX Date/time : 15-Dec 14:33 BID (MID) : 23305_WA2YSM Message # : 375566 Title : 2-m QUAD U CAN BUILD (This message has been read 1 times so far in this BBS.) Path: !ON0HU!ON0DOR!ON0CK!ON1CED!ON6AR!DB0ME!DB0AIS!DB0ZDF!DB0SRS!DB0ABH! !DB0RGB!DB0MAK!OK0PKL!OK0PPR!OK0PHL!OK0PBB!OK0PAB!OM0PBL!OM0PBM!SR9ZAA! !PP5BLU!KA6EYH!WB0TAX!KF9UG!KF9UG!KA9LCF!WA1URA!K1UOL!K1UOL!K2PUT! !WA2YSM! ******************************************************************************* ------------------------------------------------------------------------------- *******************************************************************************
Hi everyone I have built this antenna and it works well!!!! GIVE IT A TRY ------------------
THE FOLLOWING INFORMATION CAME TO ME FROM JOE LISMAN, K7PZH OF DOS PALOS, CA. HE GOT IT FROM RAY MILLS, W6WIM, ALSO OF DOS PALOS. THE INFORMATION SHEET WAS TITLED: FOUR ELEMENT QUAD - FULLERTON RADIO CLUB It is supposedly equal to a Cushcraft 11 element beam.
LR 21" per side LT 20.51" per side 84.1" total 82.04" total Diagonal length 29.73" Diagonal length 29.01" _________________________ _________________________ |. .| |. .| | . . | | . . | | . . | | . . | | . . | | . . | | . | | . | | . . | | . . | | . . | | . . | | . . | | . . | |_____________ __________| |_________________________|
LD - 1, 19.9" per side LD - 2, 19.7" per sid 79.6" total 78.8" total Diagonal length 28.14" gonal l____________________ |. .| |. .| | . . | | . . | | . . | | . . | | . . | | . . | | o | | o | | . . | | . . | | . . | | . . | | . . | | . . | |________________________| |________ ______________|
The antenna oom is made out of scedule 40 pvc pipe, 1"size, which is 1.5" In diameer, actual size. The boom is approximately 42" long. Te cross pieces are 1/4 inch icycle flag poles mad out of fiberglass, or you could us fiberglass fence posts.
TP VIEW LOOKINGDOWN
LR LT LD-1 LD-2
Vertcal Polrization Feed oint | V _ _ _ | | | | | | | | | | | | | | | | | | | 1" PVC T | | | | | | | | | | | _|_|________________|_|________________|_|______________ _|__ |____o_________________o_______|_|_|________o___________________o____| | | | | |_| | | | | | | | | | | | | | | | | | | | | | | | | | | |_| |_| |_| |_| | <-----16.1"-------> | <----12.4"------> | <-----12.4"-----> | 0.2 wavelength 0.15 wavelto buil YOU FEED A QUAD FROM THE HORIZONTAL SPREADER END. I think that one o the us of infis my attempt at a construction article. How about some more hoebrew projects with ilustrations on packetradio. I would be interestedin reports fro anyone who builds this antena. Good luck and I will look forwad to your commeDoug, KI6DS @K6RAU-1
******************************************************************************* GOOD LUCK ... HAPPY HOLIDAYS .... 73 ... RIC .. N2ZKX ......
--- End of messsage #375566 to ALL from N2ZKX ---
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| From : KE4IQQ
To : ANTENN@WW Type/status : B$ Date/time : 15-Jan 10:49 BID (MID) : 3555_KF4BPX Message # : 326771 Title : SJ-POLE 2M Path: !I6BNW!IK6PYS!IK6RUY!IW0QMN!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW
2m - SJ - Pole Antenna Type 1
________ 1 ^ 1 | 1 | 1 | 1 | 1 | 1 1/2 wave 1 |38-3/8" 1 | 1 | 1 | 1 | 1 | 1 | _________________1 ____v_ 1 1 1/8"1_________________ ______ |<----- 18" ----->1 ^ l | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 3/4 wave 1 | 58-3/8" 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 __v__ 1 1 ^ 1 1 | 1 1 | 1 1 | O O 1/4 wave /1 /1 | 20-3/8" / 1/ 1 | / 1__1__v__ +/ /- ^ 1 1/8" SUPER J-POLE Gain 6 DB over 1/4 Wave whip 3 DB over 5/8 Wave Antenna
=========================================================================== If you would like to make any type Antenna, Watch for the other antennas that I will send. If you would like the plans from 220 up to HF let me know. I NEED FOR ANTENNA BUILDERS THAT HAVE MADE DIFFERENT TYPES OF ANTENNAS SEND ME A ASCII ART COPY AND ALL INFO ON THEM WHERE I CAN EXPAND THE CLUB COLLECTION. Thanks for your help. If you would like to join the Ascii Art Antenna club and get your club # contact me at my BBS address. =========================================================================== Some antennas come only in inch & foot measurements so use this to convert to cm. Converting English Measurements to Metric: 1 inch (1") = 2.5 cm 1 foot (1') = 30.48 cm Example: 42" X 2.54 cm = 106.7 cm
Thanks to the ARRL Antanna Book Offered by Jack - KE4IQQ - AAAC #1 Address: @ KF4BPX.#OKE.FL.USA.NOAM
--- End of messsage #326771 to ANTENN from KE4IQQ --- From : KE4IQQ To : ANTENN@WW Type/status : B$ Date/time : 14-Jan 14:28 BID (MID) : 3556_KF4BPX Message # : 326643 Title : J-POLE 2M PVC Path: !I6BNW!IK6PYS!IK6RUY!IW0QMN!WB0TAX!W4DPH!W4DPH!K4VJI!W4MIN!KF4BPX! From: KE4IQQ@KF4BPX.#OKE.FL.USA.NOAM To : ANTENN@WW
ANTANA'S MADE FROM PVC PIPE for 2 meter 440 , 220
5/16 A B C |----/*-------o----------* *---------------------- 1" | /'- | | /_'___*_______o D |___| D /' /'+ A 1" [=] /' [=] <-- coax
Double Extendec Zepp Antenna Measurements
Measurements of various parts of the double extended zepp antenna, keyed to diagram. Dimensions are included for 223 and 146 Mhz as well as 446. On these two lower bands, it will be necessary to cut the PVC and insert a PVC TEE to extend the hairpin (D,D') straight out. MHz A,A' B,C D,D' TAP*
446 6-3/4" 15-3/4" 3-1/8" 5/16" 223 12-9/16" 31-1/2" 6 1/4" 3/4" 146 19-3/16" 48" 9-9/16" 1-1/8" Measurements in inches *measured from closed end of hairpin
Parts List 5 FEET OF #12 OR #14 Bare solid copper ground wire ( insulated may be used but it requires some stripping ) 1-1/2" PVC (length depends on band ) 1/2" foam pipe insulation (comes in package of 4 3'lenghts ) (2) 1-1/2" PVC end caps PVC glue or sheet metal screws to close ends RG58/U coax, enough to reach a foot beyond the end of the pipe RG-213/U or 9913 coax,for your fead line and 1 PL-239 connector for the end pipe cap
\\\\ note this is not a 50 ohm antenna so you will need a antenna //// tuner to mach impedances.
by Van Field W2OQI FROM CQ-VHF MAG. April 1997 pages 32 to 35 73s de James - KF4NNY AAAC MEMBER # 2
--- End of messsage #326643 to ANTENN from KE4IQQ ---
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