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1. [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Bill Jackson" <k9rz@radiks.net>; Date: Sun, 28 Dec 2008 06:45:55 -0600; Hello Towertalkians, I am mentoring a new ham who has limited options for putting up an HF antenna. He has 30 ft. of Rohn 25 tower placed directly next to his house (an old TV tower), but it is locat; /archives//html/Towertalk/2008-12/msg00655.html (7,275 bytes)
2. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: " Peter Forbes" <prforbes@bigpond.net.au>; Date: Mon, 29 Dec 2008 00:08:55 +1100; Bill, One suggestion - if he goes with this setup, make sure he runs the coaxial cable feed down the centre of the tower right to the ground. In that way, some of the residual radiation that occurs f; /archives//html/Towertalk/2008-12/msg00657.html (8,749 bytes)
3. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: <atrampler@att.net>; Date: Sun, 28 Dec 2008 07:59:16 -0600; Bill, I have an AV640...small lot, wrong sized trees in all the wrong places...powerline...and will vouch that on 30 and 40 it is a very nice antenna. I've had very little experience on 10-20 with it; /archives//html/Towertalk/2008-12/msg00658.html (9,878 bytes)
4. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: Bob Nielsen <n7xy@clearwire.net>; Date: Sun, 28 Dec 2008 07:31:56 -0800; I have had a AV-640 up for the past 7 years and agree with everything Art says. That antenna is very similar (except for not having traps) to the R8 which displayed very good results in the K7LXC/N0A; /archives//html/Towertalk/2008-12/msg00660.html (12,453 bytes)
5. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Sun, 28 Dec 2008 14:43:30 -0500; I've used an AV640 for a couple of years now and although I've had some problems with it (due to bugs) l like it better than any other multiband or trap vertical. There are a lot of parts and assembl; /archives//html/Towertalk/2008-12/msg00672.html (9,870 bytes)
6. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: Richards <jruing@ameritech.net>; Date: Sun, 28 Dec 2008 18:23:38 -0500; I have yet to install my AV-640 which remains in the box -- I am STILL all unsure, worried, and obsessing over how I can install it over the front corner of my attached garage or other location in th; /archives//html/Towertalk/2008-12/msg00683.html (10,441 bytes)
7. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: Bob Nielsen <n7xy@clearwire.net>; Date: Sun, 28 Dec 2008 16:31:14 -0800; I essentially used your option #2, although I picked a shorter piece of pipe for two reasons; the ability to easily mount the antenna while standing on my roof and getting it home from the hardware s; /archives//html/Towertalk/2008-12/msg00686.html (12,359 bytes)
8. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Larry WA9VRH" <wa9vrh@dishmail.net>; Date: Sun, 28 Dec 2008 18:53:41 -0600; Hi Bill, My suggestion is two fold. First have him put a TA-33 or simlilar on the tower. Then take the XYL over to see someone who has a dipole or inverted V up that is made with small and or colored; /archives//html/Towertalk/2008-12/msg00687.html (10,301 bytes)
9. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: <atrampler@att.net>; Date: Sun, 28 Dec 2008 19:25:55 -0600; James, My counterpoises droop more than the 1-2 feet mentioned, perhaps due to repeated icing. However, the slope of the counterpoises impacts the impedance of the antenna. From what I recall, the im; /archives//html/Towertalk/2008-12/msg00688.html (13,941 bytes)
10. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Sun, 28 Dec 2008 20:34:43 -0500; Works fine Also works fine, but is heavier than two sections of tower and not as strong but normally less expensive. Works fine if either bracketed to the eves, or end of roof. The only holes are the; /archives//html/Towertalk/2008-12/msg00689.html (14,962 bytes)
11. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Mark Robinson" <markrob@mindspring.com>; Date: Sun, 28 Dec 2008 19:35:34 -0600; Hi Art, I would be very interested in seeing how you engineered your pipe, if you don't mind sending me the pictures. 73 de Mark N1UK -- Original Message -- From: <atrampler@att.net> To: "Richards" <; /archives//html/Towertalk/2008-12/msg00690.html (15,169 bytes)
12. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Sun, 28 Dec 2008 21:01:01 -0500; That's normal. They are SS and pretty springy so unless they have actually been bent far enough to take a set they should be good. 73 Roger (K8RI) _______________________________________________ ____; /archives//html/Towertalk/2008-12/msg00691.html (8,615 bytes)
13. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: Richards <jruing@ameritech.net>; Date: Sun, 28 Dec 2008 21:21:45 -0500; Thanks Roger... you must have received harder wind than the weather service reported. Here they said gusts were up to 57 mph and at the Mt Pleasant airport they said at 5:55 SW winds of 37 mph with G; /archives//html/Towertalk/2008-12/msg00693.html (10,867 bytes)
14. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Sun, 28 Dec 2008 23:34:20 -0500; That wouldn't be far off from what we had around that time of day. The real surprise was the one storm was moving at 135 to 145 mph from S of GR to right over us and beyond, yet the surface winds ass; /archives//html/Towertalk/2008-12/msg00696.html (16,179 bytes)
15. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Barry Merrill" <barry@mxg.com>; Date: Wed, 31 Dec 2008 03:24:57 -0600; "In short, I outperform most people on 30 and 40 with wire antennas. Whether the pile-up is in the Pacific, Africa, grayline to northern EU or LP to the middle-east...with 800 to 1000 watts I'm usual; /archives//html/Towertalk/2008-12/msg00756.html (9,135 bytes)
16. Re: [TowerTalk] Hy-Gain AV-640 (score: 1): Author: "Art Trampler" <atrampler@att.net>; Date: Wed, 31 Dec 2008 08:57:37 -0600; OK, clarification: I at times run the 200 watts on 30, but generally about 70. Sorry I was not specific enough. Appreciate reading my post carefully enough to accuse me of illegal operation. ________; /archives//html/Towertalk/2008-12/msg00759.html (10,480 bytes)

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