Having sorted out some useful settings for QRSS receive, I thought I 
would try transmitting with SpecLab, but have come across many 
confusing menus, mostly involving audio tones.

But I don't use audio tones. I normally directly key the Tx using 
ON7YD's excellent 'QRSS' program. 

I can configure SpecLab so the COM1 port will switch the key on and 
off (using a helpful TEST button), but I can't find anything that 
will connect a text input to the COM port. 

Does anyone have some simple instructions for this? Or is SpecLab 
just for audio-based transmitting? Am I better off continuing to use 
the ON7YD program?

Mike, G3XDV
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