[Elecraft] K3 RX spurs

[Ramiro Aceves]

Lyle Johnson escribió:
> Hello Ramiro!


Ohhhh, Yesssssssss, yessssssssssssssssssssssssssssss, yessssssssssssss 
Lyle, you are a genius!!!!! I must go out home now, I will tell you later!!

> 
> It may be AGC pumping due to the close spaced signals having a beat note 
> that is slower than the AGC decay time.  This causes the AGC to modulate 
> the incoming signals at the rate of the beat note, resulting in sidebands.
> 
> Please try your test with AGC OFF, and with AGC SLOW.  There is also a 
> special AGC command
> 
> CONFIG:AGC DCY
> 
> Setting it to SOFT helps with extreme QRM conditions from strong, very 
> closely spaced signals.
> 
> I suspect that you have AGC FAST in CW and DATA modes, and AGC SLOW in 
> SSB mode, and that this may be the cause for the IMD you are seeing.
> 
> 73,
> 
> Lyle KK7P
>