[Elecraft] turn off head phone monitoring

[Joe Subich, W4TV]

> Is there any way to switch off the monitoring feed to the speaker(s)
> to avoid feedback, while leaving it available as usual in the
> headphones?

The short answer is "no."  Both the headphone and speaker outputs are
derived from the same DAC and share the common audio lowpass filter.
Although the K3 headphone and speaker outputs are driven by separate
amplifiers, the operation is no different than any other transceiver
in that the audio is the same.

73,

    ... Joe, W4TV


On 11/23/2010 2:46 AM, Ian White GM3SEK wrote:
> N5GE wrote:
>> There is no switch to turn the monitor on or off.  If you don't want to
>> here it set it to zero.
>>
>
> There are many situations such as club, contest and special event
> stations where a loudspeaker is needed for RX, while the operator also
> needs a low-level monitor signal into the headphones for TX.
>
> Is there any way to switch off the monitoring feed to the speaker(s) to
> avoid feedback, while leaving it available as usual in the headphones?
>
> It is always bad practice to monitor a live microphone transmission
> through a  speaker, because even low levels of acoustic feedback will
> affect the signal quality. The default for all voice modes should be to
> mute the LS channel automatically while transmitting.
>
>