Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+ARR\s+Preamp\s+Failures\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+ARR\s+Preamp\s+Failures\s*$/: 10 ]

Total 10 documents matching your query.

1. [TowerTalk] ARR Preamp Failures (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Mon, 04 Oct 2004 09:41:48 -0500; Last winter, I bought an ARR mast-mount GaSFet preamp for 6m. It has now failed for the fourth time, and I'm about to give up on it. Each time, ARR has repaired it under warranty. Several times I des; /archives//html/Towertalk/2004-10/msg00055.html (8,447 bytes)
2. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: W0UN -- John Brosnahan <shr@swtexas.net>; Date: Mon, 04 Oct 2004 11:25:19 -0500; Not exactly a TOWER question--but I will make a couple of comments. 1) Does your 6M GaAsFET preamp have back-to-back diodes on the input for protection? I have found that to be helpful when running 5; /archives//html/Towertalk/2004-10/msg00057.html (11,631 bytes)
3. [TowerTalk] ARR Preamp Failures (score: 1): Author: W0UN -- John Brosnahan <shr@swtexas.net>; Date: Tue, 05 Oct 2004 09:16:39 -0500; At 08:33 AM 10/5/2004, Jim Forsyth wrote: I don't know which model you have but I looked on their web site and they have 25 watt models and 160 watt models. Took me about 30 seconds to find that out.; /archives//html/Towertalk/2004-10/msg00075.html (10,221 bytes)
4. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Tue, 05 Oct 2004 09:38:30 -0500; Apology accepted, although not needed. :) I appreciate the input. The failure mechanism was the FET, not the relay. I appreciate all of the responses on this, nearly all of which make sense. But if,; /archives//html/Towertalk/2004-10/msg00076.html (9,269 bytes)
5. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: W0UN -- John Brosnahan <shr@swtexas.net>; Date: Tue, 05 Oct 2004 11:18:48 -0500; One other thought comes to mind on this topic of preamp failure. TOWER-mounted (there, I said it) RF-switched preamps are usually designed to work with a continuous carrier like FM. When used with SS; /archives//html/Towertalk/2004-10/msg00077.html (8,214 bytes)
6. [TowerTalk] ARR Preamp Failures (score: 1): Author: <kk9a@arrl.net>; Date: Tue, 5 Oct 2004 16:19:50 -0000; According to the contesting.com description: TowerTalk is for discussion of tower and HF antenna construction topics. TT members have lots of helpful information and are happy to share it. <snip> And; /archives//html/Towertalk/2004-10/msg00078.html (8,867 bytes)
7. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Tue, 05 Oct 2004 11:53:41 -0500; Any good switching system, including ARR's, is designed with hang time to accomodate SSB and even CW. When it works, it works very well, and the last time it was fixed it ran well for 3 months and a; /archives//html/Towertalk/2004-10/msg00080.html (8,337 bytes)
8. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Tue, 5 Oct 2004 13:10:17 -0400; anything wrong? Could I do This is a common problem. The problem is the system configuration requires the radio output RF before the preamp switches out of line. This means the preamp has to handle; /archives//html/Towertalk/2004-10/msg00082.html (8,883 bytes)
9. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: VR2BrettGraham <vr2bg@harts.org.hk>; Date: Wed, 06 Oct 2004 02:39:13 +0000; Oh boy - plenty to read in the digest this morning... A preamp designed for being used mounted at the mast, but is not, looks kind of like incorrect use of the product, though one may think it okay.; /archives//html/Towertalk/2004-10/msg00102.html (8,686 bytes)
10. Re: [TowerTalk] ARR Preamp Failures (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Wed, 6 Oct 2004 08:58:26 -0400; RF-switched ARRs about the The problem is not only preamp design critical, it is also influenced by the particular radio and even the length of feedline between the radio and amplifier. Using RF swi; /archives//html/Towertalk/2004-10/msg00103.html (9,055 bytes)

Current List: 1 - 10
Page: [1]