[Elecraft] New build K3S no speaker audio, low mic gain

[Bob Wilson, N6TV]

Which speaker doesn't work, the internal speaker or an external one plugged
into the SPKRS jack on the back?

If internal, did you remember to connect the 2-pin cable to the header
before putting the top cover on?

If external, did you use a stereo plug or a mono plug?  If mono, did you
set CONFIG:SPKRS to 1?

Re. mic gain, there's a SPEED / MIC knob on the front of the radio.  Did
you turn it?

What type of Heil mic do you have, dynamic or electret?  From the K3 manual:

MIC

MONO; hi- or low-Z

"This jack accommodates an electret or dynamic
mic. Use MAIN:MIC SEL to select the rear panel
mic (RP). Tap 1 to turn on Low or High mic gain
range. Tap 2 to turn bias on/off (see pg. 28 for
recommendations based on mic type).

"For the front-panel mic only, additional microphone
gain can be enabled by tapping 3 . Use this only for
very low-output mics."

73,
Bob, N6TV


On Feb 25, 2017 6:57 PM, "Chuck Chandler" <chandlerusm at gmail.com> wrote:

Well, the K3S is running, with KPA100 installed.  I have done all the
calibrations suggested.

Two items for now:

No speaker audio, though headphone jacks front and rear work fine.  I tried
the CONFIG:Spkr+PH to minus thing, no change.

Also, trying my Heil Quiet Phone had very low gain - there must be a mike
setting, but I can't think of it.

Tomorrow is sub-receiver installation...

73 de Chuck, WS1L