[Elecraft] KPA500 reduced recieve signal

[Bill Weaver]

I just had this happen with an Alpha that I was bringing out of retirement.  Turned out to be dirty relay contacts in the signal path. I can't imaging what would be unique in the amp about data mode. I wouldn't  think the amp would even know. Good luck tracking it down. It's probably something simple. 

73,
Bill WE5P

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On Jan 28, 2020, 20:25, at 20:25, Bob McGraw K4TAX <rmcgraw at blomand.net> wrote:
>Is your receive bandwidth changing between modes?  I wouldn't think 
>changing the amp would affect the receiver.   I'd say a more careful 
>evaluation would determine the T/R switch in the amp is the culprit.
>
>73
>
>Bob, K4TAX
>
>On 1/28/2020 6:46 PM, Harry W4HWD wrote:
>> When I switch the amplifier from Standby to Operate, I see and hear a
>> noticeable reduction in received signal strength, both on the S-meter
>and in
>> my headphones. Signal strength goes back up when I switch from
>Operate back
>> to Standby. *Seems to only do it in DATA A mode*. No change on CW.
>Any ideas
>> why? Rig is a K3S, using enhanced mode cables, if that matters.
>>
>> Harry W4HWD
>>
>>
>>
>>
>> --
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