[Elecraft] K3 - AFSK

W0MU Mike Fatchett w0mu at w0mu.com
Sun Nov 13 23:40:17 EST 2016


It doesn't solve you issue but the K3 is really good with FSK, ie clean.

RF?  have you put ferrites on the cables with a number of turns? Does it 
happen with 5 watts, 50 watts 100 or 1000 watts?



On 11/13/2016 8:47 PM, Robie Elms wrote:
> All,
>
> I have very limited experience with a K3 and I am helping a fellow club
> member get up and running on RTTY with his K3.  Here is the setup:
>
> 1. We are using MMTTY in the AFSK mode
>
> 2. line in/out on the transceiver connected to the computer sound card mic
> and speaker input/output
>
> 3. PTT is via command the radio control port.
>
>
> The problem we are having is intermittent transmission of data.  At times
> the set up works properly and then later when transmitting the K3 sends
> only a steady carrier.  It appears that the computer is outputting audio
> tones to the K3 when this situation occurs.  What are the potential causes
> of this problem.  Any suggestions will be appreciated.
>
> Robie - AJ4F
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