[Elecraft] K2 phase noise

[John, KI6WX]

Fred;

----- Original Message ----- 
From: "Indy" <kt5x@spinn.net>

> I can monitor my K2 with an adjacent FT-1000MP.  The signal is clean and
> sweet, but off frequency a hash is heard.

> Q:  is this the "phase noise" recently referred to?

Most likely it is phase noise.  It should decrease in amplitude by about 6
dB if you double the frequency separating the transmitter and receiver.
With your experiment, you can not tell if the phase noise is being generated
in the K2 or the FT-1000MP.

> Q:  How is it "getting out?"  My real question is, can it be filtered?
> For example, what if I put a 1:1 balun right at the out put of the K2,
> might this filter it?  What about bead balun at that point???  Or what
> have you?

There is nothing you can do about it.  It is transmitted when you use your
transmitter.  It is added to any received signal by your receiver.

-John
 KI6WX