[Elecraft] [K3] Feature request: MON in headphones only when SPKR+PH=yes

[Joe Subich, W4TV]

> I wonder if it could be done in the firmware, if it's possible, I'd
> appreciate an entry on the todo list :)

Headphone and Speaker audio share a common source (the same digital to
analog converter).  There is no a separate audio feed for headphone and
speakers (K3 Schematics package, pg 28 and 29).

What Wayne would need to do is mute the speaker (shutdown the speaker
amplifier) during transmit - and only for voice (AM, FM, SSB) modes.
However, if you notice the shutdown behavior of the speaker amplifier
it does not turn off instantly and generates a lot of distortion during
the process.  That ramp down and distortion would be very annoying.

73,

    ... Joe, W4TV


On 3/9/2012 4:59 PM, Thomas Horsten wrote:
> I guess the subject line says it all - I would like to hear my audio
> feedback in the headphones but not through the speaker, so as to not create
> distortion/feedback, I wonder if it could be done in the firmware, if it's
> possible, I'd appreciate an entry on the todo list :)
>
> Any comments/suggestions?
>
> 73, Thomas M0TRN
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