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1. [Amps] Attenuation of signal (score: 1): Author: "john shea" <w3khg@triad.rr.com>; Date: Sat, 20 Jan 2018 10:53:38 -0500; The Amp International LK500-ZC which I picked up couple weeks ago has another issue besides the fan. Running an FT-1000mp with it. When I tune in a cw signal that is S7 and then put the amp online in; /archives//html/Amps/2018-01/msg00113.html (6,582 bytes)
2. Re: [Amps] Attenuation of signal (score: 1): Author: John Simmons <jasimmons@pinewooddata.com>; Date: Sun, 21 Jan 2018 08:46:06 -0600; The antenna relay contacts would cause this problem. Clean the contacts with De-Ox-It. -John NI0K john shea <mailto:w3khg@triad.rr.com> Saturday, January 20, 2018 9:53 AM The Amp International LK500-; /archives//html/Amps/2018-01/msg00121.html (8,061 bytes)
3. Re: [Amps] Attenuation of signal (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Sun, 21 Jan 2018 10:10:04 -0500; Usually relay contacts that became gummed up from constant low current use and insufficient wiping action. Open frame can be cleaned The Vacuum relay optin can usually be restored by rewiring and put; /archives//html/Amps/2018-01/msg00122.html (8,700 bytes)
4. Re: [Amps] Attenuation of signal (score: 1): Author: Zev Darack <zevdarack@gmail.com>; Date: Sun, 21 Jan 2018 18:04:52 +0000; _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2018-01/msg00124.html (7,760 bytes)
5. Re: [Amps] Attenuation of signal (score: 1): Author: gudguyham--- via Amps <amps@contesting.com>; Date: Sun, 21 Jan 2018 11:05:11 -0500; John. Ill assume your radio antenna feed passed through the amplifier when its off rather than you having a switching network. If thats true then there should be no difference in the received signal; /archives//html/Amps/2018-01/msg00125.html (8,536 bytes)
6. [Amps] Attenuation of signal (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Mon, 22 Jan 2018 09:12:23 -0800; <The Amp International LK500-ZC which I picked up couple weeks ago has <another issue besides the fan. Running an FT-1000mp with it. When I tune in <a cw signal that is S7 and then put the amp online; /archives//html/Amps/2018-01/msg00127.html (7,740 bytes)
7. [Amps] Attenuation of signal (score: 1): Author: "John Shea" <jshea109@triad.rr.com>; Date: Sat, 17 Feb 2018 12:23:38 -0500; Last month I posted this topic. Thanks to all who contributed in the diagnosis. Local ham found the mechanical relay was the issue. He replaced it with a vacuum relay and the amp is performing as it; /archives//html/Amps/2018-02/msg00039.html (6,711 bytes)

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