[Elecraft] Noisy K3 receiver

[Don Wilhelm]

Bill,

My experience is the "other way 'round" - a low threshold makes the AGC 
active on a weaker signal, and in the extreme the AGC can be activated 
on antenna noise, and can mask weak signals.  Used intelligently with 
careful operation of the ATT and RF Gain, this would not be a problem 
(your case), but for more casual operation, a higher AGC Threshold will 
make the K3 more quiet.

73,
Don W3FPR

Bill W4ZV wrote:
>
> Graham Kimbell (G3TCT) wrote:
>   
>> At others' suggestions, I have also experimented with AGC parameters. I
>> found that the rx sounded better with AGC THR=2 (the minimum),  but it
>> could
>> do with being even lower. (I mean a lower number).
>>
>>     
>
> This is an excellent suggestion for all having the "noise" problem.  Try
> tuning in a relatively weak signal and then adjust CONGIG: AGC THR from the
> default of 005 to 002.  You may find a setting that keeps the signal and
> reduces the noise.
>
> 73,  Bill
>   
>