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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+upgrading\s+from\s+a\s+G5RV\s*$/: 12 ]

Total 12 documents matching your query.

1. [TowerTalk] upgrading from a G5RV (score: 1): Author: KI9A@aol.com; Date: Tue, 19 Aug 2008 21:43:15 EDT; Gang After some serious tree trimming, I now have room to fit a full sized wire antenna where my G5RV is right now. I am thinking about a 135' open wire fed dipole, as multi bands are needed. Questio; /archives//html/Towertalk/2008-08/msg00405.html (6,967 bytes)
2. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: "Jeff Carter" <towertalk@hidden-valley.com>; Date: Tue, 19 Aug 2008 21:57:59 -0400; Others may disagree, but I think it's worth doing just for the data. I've been pleasantly surprised in the past by things that I didn't think were going to work at all. You won't lose a lot of signal; /archives//html/Towertalk/2008-08/msg00406.html (8,344 bytes)
3. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Tue, 19 Aug 2008 21:31:17 -0500; A quick check with EZNEC shows the following loss in the 30 feet of RG213. The antenna was placed at 40 feet. 3.5 MHz 2.17 dB 7 MHz 1.95 dB 10.1 MHz 4.42 dB 14 MHz 6.5 dB 18.1 MHz 2.28 dB 21 MHz 3.1; /archives//html/Towertalk/2008-08/msg00408.html (8,329 bytes)
4. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Tue, 19 Aug 2008 22:55:44 -0400; 6.5 sounds pretty high. What kind of match/mismatch are you giving him? With or without a balun. Roger (K8RI - ARRL Life Member) www.rogerhalstead.com N833R (World's oldest Debonair) ________________; /archives//html/Towertalk/2008-08/msg00411.html (7,644 bytes)
5. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: "Jeff Carter" <towertalk@hidden-valley.com>; Date: Tue, 19 Aug 2008 23:25:34 -0400; That's what I was thinking, too. RG-213 is only supposed to have something like less than a dB of loss for three times that length at 10 Mhz. There's something else at work there. Jeff/KD4RBG -- Orig; /archives//html/Towertalk/2008-08/msg00412.html (8,885 bytes)
6. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: David Gilbert <xdavid@cis-broadband.com>; Date: Tue, 19 Aug 2008 20:32:00 -0700; Something looks pretty out of whack with those numbers. According to TLW, you'd need an SWR around 150:1 to get 6.5 db loss from 30 feet of RG-213 at 14 MHz. Dave AB7E _______________________________; /archives//html/Towertalk/2008-08/msg00413.html (9,844 bytes)
7. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: "Dan Zimmerman N3OX" <n3ox@n3ox.net>; Date: Tue, 19 Aug 2008 23:36:34 -0400; Yep, mismatched line loss. Coax can be surprisingly awful when badly misterminated. I brought home a fresh roll of RG-6 from Home Depot and stuck a connector and a 1.5:1 unun on it just for kicks. S; /archives//html/Towertalk/2008-08/msg00414.html (8,801 bytes)
8. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: K4SAV <RadioIR@charter.net>; Date: Tue, 19 Aug 2008 23:26:57 -0500; K8RI wrote: 6.5 sounds pretty high. Well it is. Seems there was a minor problem with the decimal point. It should have been 0.65 dB for 20 meters, not 6.5. I did notice that I used a 125 ft dipole in; /archives//html/Towertalk/2008-08/msg00415.html (9,550 bytes)
9. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Tue, 19 Aug 2008 23:00:55 -0700; You left out the most important part -- what bands does this antenna need to cover? I have two 80/40 fan dipoles at right angles to each other. One of them also has loading coils to allow it to load; /archives//html/Towertalk/2008-08/msg00417.html (8,908 bytes)
10. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: Dennis <radioart@charter.net>; Date: Wed, 20 Aug 2008 05:50:57 -0800; Hi Chuck, At the minimum you would want to use a high power balun to interface the unballanced coax with the ballanced 450 ohm line. As to why type or impediance of balun, that would be determined by; /archives//html/Towertalk/2008-08/msg00419.html (10,510 bytes)
11. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: Dennis <radioart@charter.net>; Date: Wed, 20 Aug 2008 06:00:14 -0800; Oh, by the way, the modeling I did was over real earth. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com; /archives//html/Towertalk/2008-08/msg00420.html (12,138 bytes)
12. Re: [TowerTalk] upgrading from a G5RV (score: 1): Author: Dennis <radioart@charter.net>; Date: Wed, 20 Aug 2008 06:04:07 -0800; OK, so balanced only has one L.... _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contest; /archives//html/Towertalk/2008-08/msg00421.html (12,169 bytes)

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