[Elecraft] increasing mic gain

[Ron D' Eau Claire]

 > I understand that by changing some resistors on the SSB board
> allows the mic
> gain to be increased. Any suggestions? Just to note, I am using a moving
> coil microphone and have not had any bad audio reports except 'could be a
> little louder'.
>
> 73/72 2E1LOK / M3LOK Nicholas K2 #2448

Increasing the value of R14 on the SSB Module will usually improve the audio
level quite a bit, Nicholas. Values of between 5 and 10 k have been used.

A while back some ops swapped R14 and R2 on the SSB module board to
accomplish this AND to provide slightly more signal to the Balanced
Modulator. There were some concerns voiced that doing so might over-drive
the Balanced Modulator. I don't know if anyone ever investigated that
possibility further, but a number of operators reported good results after
switching the two resistors.

Don't forget to turn up the "compression" a bit if you want more "punch" too
(SSBC on the menu: 1= no compression, 4= maximum compression).

If you are getting at least one bar with the K2 "meter" in ALC mode (press
and hold RF/ALC button) you have all the audio input from the mic that the
K2 can use.

Ron AC7AC
K2 #1289