Did Darren ever get Rick with the Wireless CTF to share the raspberry pi code to send digital data via radio? I don't find anything in the forums about it. Rick said they were sending JPGs out of some Raspi A models with no extra hardware except an antenna connected to GPIO. Looking for info on this. Googling I find plenty of radio stuff with the Pi but mostly by adding hardware or just analog FM send/receive stuff. I am interested in sending digital from Pi with no additional hardware.