A multi-band, multi-mode software defined radio (MBMM SDR) platform having a multi-band front end (MBFE), a multi-mode digital radio (MMDR), a configuration & control (C2) subsystem, and a power distribution subsystem. The MBFE provides wideband operations, L/S/C-Band telemetry band selection, and channel tuning. The MMDR provides high-speed signal processing and flexible programming to support multiple telemetry waveforms that are implemented using system-on-chip technology. An integrated pulse code modulation/frequency modulation (PCM/FM) and shaped offset quadrature shift keying (SOQPSK-TG) transmitter and a non-coherent PCM/FM receiver has been developed. The C2 subsystem allows for pre-test configuration and control of the MBFE and MMDR subsystems.