To: | "Brian Sarkisian, KG8CO" <cqkg8co@yahoo.com>,<amps@contesting.com> |
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Subject: | Re: [Amps] ALS-600 with ALS-600SPS SSB problem |
From: | "k7fm" <k7fm@teleport.com> |
Reply-to: | k7fm <k7fm@teleport.com> |
Date: | Sun, 2 Dec 2007 05:44:09 -0800 |
List-post: | <mailto:amps@contesting.com> |
Could the problem with the power supply tripping be due to rf? It is unclear from your stated facts how you are testing it, but it sounds like you are testing sometimes into a dummy load, where it works ok. Perhaps the problem is not "continuous vs voice" but rather "dummy load vs. antenna". I have had problems with rf tripping the overvoltage protection circuit, by adding to the voltage on the sense line. Various methods were used to correct the problem, including a better job of bypassing, rf beads, shielding of leads and a better job of grounding. 73, Colin K7FM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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