[Elecraft] Hard of hearing, almost deaf K3

[john at kk9a.com]

Do you have another transceiver that could have blown its front end?   
You did not say that it is band independent, are you sure that you're  
not listening on the RX antenna jack with no antenna connected?

John KK9A



John Unger w4au wrote:
Tue Jan 21 11:43:09 EST 2020
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  A few days ago one of my K3's appeared to have suddenly gone almost deaf.
Here are some of the symptoms and observations:

- Rig's S meter shows very low or no background noise (strong stations can
still be heard weakly).
- P3 shows <S0 signal strength.
- I can hear strongest stations, they just make it to ~S1.
- Overall effect appears to be similar to having big attenuator in line.
- Problem is antenna independent.
- Rig transmits fine, low SWR, etc.
- Both main and sub receivers have the symptoms.

I've check most "obvious" things: RF gain, etc.,
(but there are a lot of buttons and MENU/CONFIG settings to inadvertently
push on the radio...)

I would appreciate any suggestions of what else to look for or reports of
similar problems from others before I ship it off to Elekraft.

73 and thanks - John, W4AU