Wideband digital radio with transmit modulation cancellation

1. A radio for communicating digital data over an analog communication channel, comprising:

a filter that inputs a binary-level modulated signal transmitted via a noisy analog communication channel and outputs a filtered modulated signal;

a demodulation circuit that is electrically connected to the filter and performs two-level demodulation of the filtered modulated signal to produce a binary demodulated signal having a serial format;

a SERDES integrated circuit, electrically connected to the demodulation circuit that receives the binary demodulated signal, the SERDES integrated circuit further comprising a clock recovery circuit that recovers a clock timing of the binary demodulated signal and locks onto the clock timing from the binary demodulated signal and a deserializer circuit that converts the binary demodulated signal with the serial format into a binary demodulated digital signal having a parallel format; and

a digital section that receives the parallel format binary demodulated digital signal.

2. The radio of claim 1 , wherein the demodulation further comprises frequency shift keying (FSK) demodulation.

3. The radio of claim 2 , wherein the demodulation further comprises phase shift keying (PSK) demodulation.

4. The radio of claim 3 , wherein the demodulation further comprises quadrature four-level phase shift keying demodulation.

5. The radio of claim 4 , wherein said four-level phase shift keying demodulation is differential.