Jim,

I am using essentially the same setup.  I got a lot of help from Chen (W7AY) 
the author of CocoaModem.

I also had a problem of no output and it turned out to be that I was using the 
default jumper settings on the Signalink and you need to boost the output by 
setting jumper 3 (JP3).  Otherwise, the audio level is too low to drive the K3.

So, if you have not done that then I suggest you give it a try.  From Chen's 
advice, I have my audio level to about 0.25 volts RMS (I think that is right, I 
am going from memory)...along with the Signalink TX level of about 1 oclock 
this gives the recommended 4 (to 5) bars on the K3 ALC bar graph.  More then 
that and you will be overdriving.

73, phil, K7PEH


On Jul 10, 2010, at 4:52 PM, Jim / W6JHB wrote:

> 
> Got the SSB problem fixed - as suspected, it was my fault - I had mis-read
> the manual regarding the bias setting for the MH2 Mic. Ooops!
> 
> But, it did NOT resolve the PSK31 issue. I finally got CocoaModem to trip
> the PTT on the K3, but still no RF flowing. I'd appreciate hearing from
> anyone using CocoaModem and the K3 to do PSK31. Maybe we can go over
> settings to see what I've messed up...
> 
> Tnx & 73, Jim / W6JHB
> -- 
> View this message in context: 
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