[Elecraft] Re: K2 SSB s/n vs CW s/n ?

[PE1E]

My K2 is sn #5632.
Peter, PE1E.
.
----- Original Message -----
From: "PE1E" <PE1E at chello.nl>
To: <Elecraft at mailman.qth.net>
Sent: Saturday, November 11, 2006 2:50 AM
Subject: K2 SSB s/n vs CW s/n ?


> When I tune my K2  in a carrier ( all HF bands excl. 160 mtrs ) I notice
the
> K2 SSB setting has an over 10 dB worse s/n.
> I really mean worse s/n, no difference in audio ( gain ).
> My calibrated HP 3335A generates the carriers.
> My calibrated HP 8568B spectrum analyzer shows the the audio output S/N.
>
> I also varied in numerous combinations the K2's IF and LF gain pots.
>
> I tuned both SSB and CW for maximum signal strength ( not for the same
> pitch.).
> I guess this does exclude possible non matching filter- and/or  bfo
> alignments.
>
> I used the same filterwidths for SSB and CW.
> The S-meter shows no difference between SSB en CW ( I varied the carrier
all
> over S1 until 9+20 ).
>
> What could be on ?
>
> Thanks,
> Peter, PE1E
>
>
>