[Elecraft] Noisy K3 receiver

[Jan Erik Holm]

Well something isn´t right or different from other radios.
There are radios with lower MDS that sounds much quieter then
the K3.
Here we have proposals to turn of preamp and make MDS even
higher. Not logical and state of the art to me.

So again, I know there are receivers with lower MDS then the
K3 that sounds much more quiet.
IMO something is going on but I can´t put my fingers on it
and I don´t have the time to investigate. And believe you
me with the experience I do have in the performance of a
multitude of different radios going back in to the 60´ties
I know what I´m talking about.

It´s been most interesting to read some of the comments,
maybe something can come out of it and things can be fixed.

merry xmas Jim SM2EKM
-----------------------------
Don Wilhelm wrote:
> will return the K3 to full gain.  You are correct in reducing the RF 
> Gain to the point where the band noise is reduced.  I trust you are also 
> using the attenuator and have the preamp off because these are stages 
> prior to the mixer and will have a greater impact on the band noise 
> reduction than the RF Gain which operates at the IF.
> 
> For those who have noisy reception, do a trial at a spot in each HF band 
> where there are no signals present - first turn off the preamp, and then 
> if noise is still present and bothersome, turn on the attenuator, then 
> lastly reduce the RF Gain.
>