[Elecraft] K3 Monitor feedback

Mike nf4l at nf4l.com
Fri Nov 27 16:40:40 EST 2009


Iain MacDonnell - N6ML wrote:
> On Fri, Nov 27, 2009 at 9:24 AM, Mike <nf4l at nf4l.com> wrote:
>   
>> Hmmm..
>>
>> Any voice mode (I don't have FM) I get feedback with MIC+LIN on. Muting
>> the Line setting in WIndoze (Mine doesn't say whether it's in or out)
>> kills the feedback. Pulling the line-in or line-out doesn't kill the
>> feedback.
>>
>> If the ProSet is laying on top of the rig, there is feedback at all
>> settings until I move it. Vox is off, so that indicates that the mic is
>> open all the time. Verified that by putting my hand around the mic,
>> cupped toward the K3 from a couple of feet away,
>> *SQUEEEEEEEEEEEEEELLLLLLLLL*.
>>
>> I don't understand the audio path, but ti me it seems like a flaw somewhere.
>>
>> If I didn't like RTTY so much, I could just set MIC+LIN off, and be happy.
>>     
>
> You don't need MIC+LIN for RTTY. Just set "MIC SEL" to "line in" when
> in "AFSK A" mode, and to whatever you use for a mic when in SSB modes.
> The setting is remembered per-mode.
>
> MIC+LIN is useful for things like SSTV, where you flip back and forth
> between audio sources during a single QSO.
>
>     ~Iain / N6ML
Iain -
You saved the day! That works perfectly. Somewhere when I was trying to 
get set up for RTTY, I thought MIC+LIN had to be on. Old dawg, new trix. 
That's something to include in the new, obese manual.......

73, Mike NF4L



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