[Elecraft] No transmit SSB in K3 Rx works fine.

[Gary Smith]

Bob,

Bless you! The setting was rP.H BIAS. I 
did not set up the configuration in this 
K3 and with  the factory reset it did not 
make the needed change so my microphone 
attached to the front (using a 
non-electret Heil 4 element) was not 
working. I did as you suggested, found 
FP.H BIAS and tapped 2 to remove the bias 
and wala, the SSB works.

Now to see if I can get WSJT to work with 
the KIO3B option in place.

Thank you!

73,

Gary
KA1J
 
> 
> Check MAIN:MIC SEL in the K3 menu. 
> 
> If set to LINE IN (common for WSJT-X), the microphone inputs are
> bypassed.  Set MIC SEL to FP (front panel) or RP (rear panel),
> wherever you connected your mic.
> 
> Furthermore, if you're using an Electret mic., you have to tap [2]
> while in the MENU:MIC SEL menu to turn mic BIAS (DC power) ON,
> otherwise an electret mic. won't produce any output at all.
> 
> You may also want to check MAIN:MIC+LIN to get both LINE and MIC
> working at the same time (good for USB contesting, but not for
> WSJT-X).
> 
> Finally adjust MIC GAIN and and CMP GAIN as described in the K3
> manual.
> 
> 73, 
> Bob, N6TV
> 
> On Sat, Jul 28, 2018 at 10:01 AM, Gary Smith <Gary at ka1j.com> wrote:
>     Sorry, should have worded the subject line
>     better so I corrected it here...
> 
>     > Folks,
>     >
>     > Some history...
>     >
>     > I had to send my K3s to Elecraft for
>     > repair. I purchased a K3 a couple years
>     > back to set up for a close friend and
>     > though it has all the factory updates, 
>     it
>     > had a low serial # and he wanted one 
>     with
>     > a high one. I sold him my equally 
>     updated
>     > K3 with a higher Serial # and kept this
>     > one. It has sat on the shelf as my 
>     backup
>     > radio for the last two years
>     >
>     > I rarely use SSB, only CW & have maybe 
>     3-4
>     > SSB conversations/year. With the remote
>     > preamp attached it became problematic to
>     > the wiring and to simplify things I
>     > updated the K3 with the new KXV3B and
>     > KIO3B boards so it will match the
>     > connections of the K3s and simplify 
>     wiring
>     > issues and not need an external 
>     soundcard.
>     >
>     > I found I could not transmit with WSJT-X
>     > but I could receive and decode just 
>     fine,
>     > CAT and Test PTT worked perfectly,
>     > clicking on tune showed the K3 led red 
>     as
>     > in transmit but zero output regardless 
>     of
>     > line level or power out adjustment. The
>     > DATA MD is indeed set to DATA A. The
>     > computer sound settings showed the K3s 
>     USB
>     > was selected for default and the levels
>     > were both at 52. I exhausted all I could
>     > think of to do to get it to work but
>     > nothing out.
>     >
>     > However, the K3 transmitted perfectly in
>     > CW and the auto-tuner worked as 
>     expected.
>     >
>     > I discovered later that the K3 will not
>     > transmit in SSB. In AM it sends out the
>     > carrier appropriately proportional to 
>     the
>     > power setting but nothing of audio was
>     > transmitted.
>     >
>     > There is nothing plugged into the back 
>     of
>     > the K3 in the audio/line KXV3B I/O 
>     module.
>     >
>     > I loaded the config from two years ago
>     > when I brought it home and after 
>     changing
>     > the config to see the new components 
>     there
>     > were no changes in SSB transmission.
>     >
>     > I did a full EE factory reset, re-set 
>     the
>     > configuration to reflect the new K3s
>     > boards and still no SSB out.
>     >
>     > Since WSJT uses SSB to transmit, I 
>     assume
>     > this is the cause of no transmit with 
>     that
>     > software (it worked fine with the K3s).
>     >
>     > One assumption is the K3 I bought has a
>     > defective component from when I bought 
>     it
>     > and I didn't know that because I didn't
>     > try SSB. I thought I had while setting 
>     it
>     > up for my friend (now SK) but it was
>     > awhile ago and I don't remember if I did
>     > or not.
>     >
>     > -----
>     >
>     > So with all the history above, has 
>     anyone
>     > had an issue like this that you found 
>     the
>     > resolution to? Maybe there is some 
>     setting
>     > in the K3 I need to engage? There's
>     > nothing to unplug from the rear and
>     > everything else works perfectly.
>     >
>     > Ideas & suggestions?
>     >
>     > Thanks & 73,
>     >
>     > Gary
>     > KA1J