Barry,

I think you may find a problem in the KPA500 T/R switch area.
Email [email protected] for further checks and resolution.

73,
Don W3FPR

On 9/8/2019 2:34 AM, Barry Simpson wrote:
My KPA 500, which is several years old, has just developed an issue which
so far I have been unable to resolve.

What has happened is that when I put the amplifier into OPER, the received
signal strength drops by several S units. It transmits normally and also
receives normally in STBY.

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