[CQ-Contest] CT/TR_Log CW Interfacing

Michael Tope W4EF at pacbell.net
Sun May 24 21:54:19 EDT 1998

While right in the middle of finishing my TRlog compatible two radio switch 
box, it occured to me that it would be nice if the "box" was also 
compatible with CT. This way I could set up an extra radio and antenna 
during field day (field day group uses CT), and perhaps dig some extra QSOs 
out via S&P. At the very least it would nice to be compatible with multiple 

Does anyone out there know where I could find the interfacing information 
for CT? Specifically, I am interested in parallel interface dit/dah paddle 
inputs (does CT have this feature, I forget?), primary secondary radio 
control line, and keyer output line. Ideally, I would like to make an 
adapter cable that would convert the TR compatible box to a CT compatible 

Mike, W4EF/6..............................   

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