[Elecraft] PSK & Whurm Noise

[Julian, G4ILO]

I'm not sure what you mean by a "whurm noise". I presume it's some Scottish
term. :)

If you have the audio monitor enabled then the K3 will play the digital
audio from the computer sound card through its speaker. Depending on the
pitch selected with the waterfall I suppose it might sound like "whurm". If
the sound definitely isn't PSK31 at whatever pitch you selected then perhaps
you are getting RF feedback into the audio.

What you can do is long-press the TX button to put the K3 into Test mode.
You can then TX and it will go through the motions but not actually produce
any RF. If you still hear the noise then it is audio-related, if you don't
then it is RF-related.


Screwtop wrote:
> 
> Hi
> 
> I'm a new owner of a K3 and I'm still in the "setting up" process.
> 
> Yesterday I managed to have a PSK QSO via Winwarbler which is part of the
> DXLabs logging software suite. Today I updated the firmware using the K3
> Utiltiy. Following this I tried another PSK QSO. This time when
> transmitting my signal the radio made a strange whurm noise. I'm not sure
> if t was from the speaker or not. It sounded as if it was coming from
> somewhere near the back of the K3. A similar thing happened with RTTY.
> 
> I've switched of the K3 and it'll stay switched off until I'm sure that
> I'm not hurting it.
> 
> I'm at a loss. Any help gratefully received.
> 
> 73
> 
> Bill
> GM0VIT
> 


-----
Julian, G4ILO. K2 #392  K3 #222.
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune - http://www.g4ilo.com/ktune.html

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