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Total 42 documents matching your query.

21. Re: [TenTec] G5RV (score: 1): Author: Steve Hunt <steve@karinya.net>; Date: Sun, 01 Feb 2009 21:38:17 +0000; Frank, The length is irrelevant - 100 ft or 100 metres, with that load impedance the Wireman 551 ladderline is lossier than the RG213 - that was my point. Steve ______________________________________; /archives//html/TenTec/2009-02/msg00024.html (8,625 bytes)
22. Re: [TenTec] G5RV (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sun, 01 Feb 2009 16:30:24 -0600; I didn't use any SWR chart. I used formulae involving the matched loss and the magnitude of the mismatched reflection coefficient. The mismatched loss was greater than the matched loss. The formulae; /archives//html/TenTec/2009-02/msg00026.html (10,761 bytes)
23. Re: [TenTec] G5RV (score: 1): Author: Steve Hunt <steve@karinya.net>; Date: Sun, 01 Feb 2009 23:03:59 +0000; Jerry, Then if those formulas fall down with the particular values I gave, they are approximations. Look at it this way: at HF the losses in feedlines are predominantly I^2R losses - the higher the c; /archives//html/TenTec/2009-02/msg00029.html (10,385 bytes)
24. Re: [TenTec] G5RV (score: 1): Author: Steve Hunt <steve@karinya.net>; Date: Sun, 01 Feb 2009 23:11:11 +0000; Jerry, A picture paints a thousand words - take a look at Figure 9 here: http://www.vk1od.net/VSWR/displacement.htm it shows what I was trying to describe. Notice how unmatched loss (the red line) is; /archives//html/TenTec/2009-02/msg00030.html (8,754 bytes)
25. Re: [TenTec] G5RV (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sun, 01 Feb 2009 18:51:18 -0600; Yes, IF (and only if) you pick your point along the line for that short line you can pick a line that has lower loss. But the loss per cable length is based on the total loss of a line many quarter w; /archives//html/TenTec/2009-02/msg00031.html (12,274 bytes)
26. Re: [TenTec] G5RV (score: 1): Author: Jim WA9YSD <wa9ysd@yahoo.com>; Date: Mon, 2 Feb 2009 03:30:02 -0800 (PST); Don't get me wrong, adding the 15M wire to the 80M G5RV will work just fine. A 40M version for a G5RV is the same antenna except the antenna and feed line is just cut to half size. It will not work o; /archives//html/TenTec/2009-02/msg00038.html (7,867 bytes)
27. Re: [TenTec] G5RV (score: 1): Author: Bill Rowlett <kc4atu@hotmail.com>; Date: Mon, 2 Feb 2009 23:04:50 +0000; Were in the world did you come up with an 80 and 40 meter versions of a G5RV. The G5RV is a 20 meter antenna, PERIOD. G5RV designed it for 20 meters. Anything other than his design is not a G5RV, it; /archives//html/TenTec/2009-02/msg00046.html (9,059 bytes)
28. Re: [TenTec] G5RV (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Mon, 02 Feb 2009 18:24:07 -0600; The idea was to provide a resonant dipole for 15 meters on any flavor or G5RV, but certainly mainly for the 102 foot true G5RV. The other is a half size G5RV. Besides a 3:1 SWR on the 102 foot versio; /archives//html/TenTec/2009-02/msg00047.html (8,659 bytes)
29. Re: [TenTec] G5RV (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Mon, 2 Feb 2009 20:02:56 -0500; Stuart Rohre writes... Of course, all antennas are a compromise, because requirements conflict. And conditions are so variable that anecdotal experience isn't worth much, as we will agree. I have a G; /archives//html/TenTec/2009-02/msg00049.html (9,792 bytes)
30. Re: [TenTec] G5RV (score: 1): Author: Ralph Matheny <mathenyr@marietta.edu>; Date: Mon, 2 Feb 2009 20:10:26 -0500 (EST); At the risk of prolonging the misery of this thread, I must quote Mr. Varney, G5RV in his "update" article in ARRL Antenna Compendium #1. Quote, "The G5RV antenna, with it's special feeder arrangemen; /archives//html/TenTec/2009-02/msg00051.html (10,968 bytes)
31. Re: [TenTec] G5RV (score: 1): Author: "N4PY" <n4py@arrl.net>; Date: Mon, 2 Feb 2009 20:16:41 -0500; I believe when that antenna came out, there were only 4 bands in that range - 80, 40, 20, and 10 meters. Which is why the antenna is so bad on 15 meters since it was not part of the design. Carl More; /archives//html/TenTec/2009-02/msg00052.html (11,695 bytes)
32. Re: [TenTec] G5RV (score: 1): Author: Bill Rowlett <kc4atu@hotmail.com>; Date: Tue, 3 Feb 2009 02:48:17 +0000; Yes, he did state that it works on the other bands. His reason for the design was for a 20 meter antenna which would fit in his garden (back yard) and give him gain in the directions he needed. The o; /archives//html/TenTec/2009-02/msg00055.html (11,753 bytes)
33. Re: [TenTec] G5RV (score: 1): Author: "Duane Calvin" <ac5aa1@gmail.com>; Date: Mon, 2 Feb 2009 20:57:57 -0600; So, you're saying his design does not scale to other bands, and no other manufacturer has built a scaled model and sold it as a G5RV-type design then? Wonder what band Yagi-san built his original, we; /archives//html/TenTec/2009-02/msg00056.html (12,263 bytes)
34. Re: [TenTec] G5RV (score: 1): Author: "Ron Zond" <k3miy@csonline.net>; Date: Tue, 3 Feb 2009 10:52:10 -0500; Hi Duane I believe Van Gordon sells a 40 meter version of their G5RV. The flattop is 52 feet, and the stub is 16 feet. Works 40 through 10. Ron K3MIY So, you're saying his design does not scale to ot; /archives//html/TenTec/2009-02/msg00065.html (12,738 bytes)
35. Re: [TenTec] G5RV (score: 1): Author: "Duane Calvin" <ac5aa1@gmail.com>; Date: Tue, 3 Feb 2009 17:16:14 -0600; Hi Ron - yes, I know - I have a 40m (half sized) version mounted way too low over my house which I use for many bands with fair success. I was trying to understand the position being taken that there; /archives//html/TenTec/2009-02/msg00071.html (13,966 bytes)
36. Re: [TenTec] G5RV (score: 1): Author: Bill Rowlett <kc4atu@hotmail.com>; Date: Tue, 3 Feb 2009 23:48:16 +0000; No, the position taken is that G5RV designed the antenna to provide what he wanted on 20 meters, therefore the original design was a gain antenna on 20 meters. The fact that it works other bands with; /archives//html/TenTec/2009-02/msg00073.html (16,240 bytes)
37. Re: [TenTec] G5RV (score: 1): Author: Ralph Matheny <mathenyr@marietta.edu>; Date: Tue, 3 Feb 2009 20:55:33 -0500 (EST); More quotes from Mr. Varney, G5RV's article: "For installation in very limited areas, the dimensions of both the flat top and matching sections can be divided by a factor of two....." "By far the mos; /archives//html/TenTec/2009-02/msg00076.html (8,735 bytes)
38. Re: [TenTec] G5RV (score: 1): Author: "Bob Close" <rclose@nhwisp.com>; Date: Wed, 4 Feb 2009 05:09:42 -0500; THE G5RV , SO IT SEEMS , 'LEAST TO ME IS SHAT ON, SPOKE DOWN ON, AND RIPPED ALL BY THEE BUT I KNOW HIS CALL SIGN, AND FAMOUS HE BE AND YOU, MYSTERY GRIPER, ARE UNKNOWN TO WE HE SHOULD HAVE DONE THIS,; /archives//html/TenTec/2009-02/msg00083.html (9,630 bytes)
39. Re: [TenTec] G5RV (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Wed, 04 Feb 2009 15:32:42 -0600; A good discussion of the orginal G5RV design, and its modern improvement by EZNEC modeling, by ZS6BKW, Brian Austin, is contained in the following link from G-QRP club's SPRAT magazine: http://www.dx; /archives//html/TenTec/2009-02/msg00092.html (16,954 bytes)
40. Re: [TenTec] G5RV (score: 1): Author: Stuart Rohre <rohre@arlut.utexas.edu>; Date: Wed, 04 Feb 2009 16:17:44 -0600; *"G5RV Multi-Band Antenna** by Louis Varney,* *CEng, MIEE, AIL, G5RV* ** *taken from (RADIO COMMUNICATIONS, JULY 1984) THE G5RV ANTENNA, with its special feeder arrangement, is a multiband centre-fed; /archives//html/TenTec/2009-02/msg00094.html (9,225 bytes)

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