On Feb 14, 2016, at 19:51, Bill Frantz <[email protected]> wrote:
> 
> My big problem was on receive. I never got the radio to cleanly decode. It 
> missed almost all the call signs, regardless of strength of the signal. I 
> tried using fldigi, which did work, and cocoaModem which seemed to decode 
> better than fldigi. I ended up using cocoaModem and logging manually. (Next 
> time I'll probably steal the VGA screen from the P3 and use it as a second 
> screen on the computer so I can see all of both programs windows.)

I also am using a Mac in the hamshack (I confess, I use a Windows VM and N1MM 
plus for contesting). I’ve used this method of RTTY operation on the K3 for 
casual operation, and my biggest difficulty was tuning to the exact correct 
frequency on the K3 to get solid decoding of the received signal. I’m used to 
working with MMTTY on the computer, with the simulated crossed ellipses on the 
screen to tune in the signal; without that aid, even though I know what the 
signal is supposed to sound like, I have to play with the tuning to get it 
exactly correct for decoding (I can usually get it to work OK to make the 
contact, though).

With that in mind, maybe your problem with the other  station copying you is 
the same problem you’re having with decoding: even with the CWT indicator, 
you’re not getting exactly on the correct frequency,

Are you using FINE tuning on the K3? That seems to be almost a necessity to 
make the fine adjustments needed to tune the RTTY signal correctly for 
receiving and decoding.

Hope this helps.

John K8AJS
[email protected] <mailto:[email protected]>


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