[Elecraft] SSB issues

[Don Wilhelm]

John,

I need to ask - have you done a good alignment using a visual display such
as Spectrogram?  If you have not, I suggest you do so.  Your problems sound
like typical misalignment of the filter/BFO relationship.

You can check my website (www.qsl.net/w3fpr) article on K2 dial
calibration - Step 3 for information on how to set the filter/BFO
relationships.

I am not certain where your 'VOX hum' is coming from unless the BFO setting
is letting too much low frequency energy through the filter.  The only other
thing that occurs to me is that your mic cable shield is not properly
grounded.  You might try grounding the mic connector on the front panel
board.

73,
Don W3FPR

----- Original Message ----- 

> My K2 was fun to build and is fun to operate. I have
> made hundreds of QSOs QRP. The contacts give me good
> audio reorts. As I am putting the finishing touches on
> the K2 ,there are a few issues i have not been able to
> resolve. The VOX hums and the LSB audio is tinny;
> lacks mid to lowrange reponse. Calibration does not
> seem to be the issue. I would like sugguestions on
> components that will improve the LSB TX audio quality
> and ways to reduce the humin VOX TX audio