[Elecraft] K3 Main RF Gain problem

[Don Wilhelm]

Jim,

The gain controls are potentiometers, not encoders, so yes, you could 
have a bad spot on your RF Gain control such that the resistance has a 
"bump" in it near the 9:30 position.
Firmware efforts are not likely to fix it if the pot itself has a 
resistance bump.

73,
Don W3FPR

Jim Byers wrote:
>
> The problem is with the main  RF gain. If I turn down the Main RF gain S
> meter goes up as expected, the gain is  heard to decrease and seen to
> decrease by Spectrogram. So far so good.
>
> When I keep turning the gain down the  S meter will increase to S 30 (Rf
>  knob position 10 o'clock) When the knob position reaches 9:30 the S meter
> drops to S6 and the gain comes back up both heard and seen by spectrogram.
> Further movement will decrease the gain to zero as heard and seen but the S
> meter stays at S6. Increasing the gain the reverse happens. This is true in
> all modes.
>
> The sub acts normally as heard and seen by spectrogram and the S-meter acts
> as it should.
>   
>