[amsat-bb] DireWolf config file question

Steve Kristoff skristof at etczone.com
Mon Apr 6 02:20:47 UTC 2015

I'm trying to set up the config file in Direwolf. The radio is a Yaesu FT290RII and the interface is a Signalink USB.
The Direwolf manual says this about setting up the PTT configuration:


# If not using a VOX circuit, the transmitter Push to Talk (PTT) 

# control is usually wired to a serial port with a suitable interface circuit.  

# DON'T connect it directly!


# For the PTT command, specify the device and either RTS or DTR.

# RTS or DTR may be preceded by "-" to invert the signal.





#PTT /dev/ttyUSB0 RTS

Unfortunately, I don't know what that means. Anybody know which one I should use? Any hints, tips, suggestions would be much appreciated.

Steve Kristoff AI9IN
Oldenburg IN
skristof at etczone.com

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