Yep. Was there. Not to be picky, but as a newbie to /this/ subject, I was not sure what
"GPIO3 (RA-Board)" actually meant...because it doesn't /say/ needs extra purchase, as many of the other digirig pages do when extra hardware is needed. I have used lots of GPIO devices in the past, and I was left wondering how I accessed GPIO3. Disassemble the digirig? Solder a wire? Attach a PTT switch to the wire?
"GPIO3 (aka "RA Board" which is the GPIO 3 pin of the C-Media 108 usb sound card chipset)" doesn't mean anything TO THE UNENLIGHTENED. We call lotsa things what they ain't, and "RA Board" could mean anything.
So now I see that I need to buy another board...otherwise, the digirig lite is just another SignaLink to me (not that I have a problem with that...I use SL regularly). And "RA board" aware software must be used. It seems that this software (fldigi appears to support it) sends a command to the RA board that is plugged into the USB port, the board then sends a command to the digirig, in addition to the audio stream, to toggle GPIO3. Why the board is needed is not clear. It seems that the digirig lite does not accept what ever the RA board accepts. So, to get the same functionality that I have already with the digirig, I need a $50 board, another piece of hardware, and I get to not use a COM port (Windows)...which has always worked for me. Still, I see the benefit of the digirig lite, if it relies only on VOX, because of the smaller form factor and simpler cabling. (Though I note that digirig recommends if you use one of their cables designed to work w the digirig, you tape the unused connector. As an aside, I might use masking tape for that but I'd never use electrical tape on a TRS plug. I'd likely just find something reusable to slide over the plug.)
I think that the digirig site could benefit from some clarity, some links to relevant 3rd party hardware, and perhaps a line diagram or actual image of what a setup looks like.
Thanks for taking the time to write that explanation, though.