[Elecraft] Bad LSB audio

[Neal Campbell]

Hi all,

Not being a particularly active ham on SSB, I have toyed with it a bit on K2
4490 but bought the MD-2 mic and figured I would 'tune' the BFO to give me
decent audio. I got a couple of 'horrible audio' reports which also drove
the decision.

I tested the BFO setting using an Orion fed into my computer so I could
record and listen to myself as I tuned. I had to remove the coax and set the
attenuator on the orion to keep the signal under S9 (I do have a K2/100).

Trying to adjust the LSB setting on 40m, I honestly could not find a setting
that was not very hollow and a bit tinny. It was very interesting seeing how
senstive the audio was to theBFO setting, a slight adjustment could really
mean a big difference. After achieving unsatisfactory result, I glumly did
the USB setting on 20 meters. Oddly enough, it was almost spot on with the
original setting and I believe yields decent (if not great) audio.

I also noticed (without any scientific basis!) that I had to tune about
300-400 Hz low on LSB to achieve the best audio while on 20m it was again
spot on with the frequency display of the K2.

Any clues as to what could cause LSB to sound pretty bad while USB sound
decent? 

Thanks
Neal k3nc