A description of the operation:
http://digamyhobbyen.weebly.com/
Description include: Sim reader, micro controller, DSP, RF transceiver, IF, RF power,.....TDMA, Time advance,...
http://digamyhobbyen.weebly.com/
Description include: Sim reader, micro controller, DSP, RF transceiver, IF, RF power,.....TDMA, Time advance,...