The RXT7406 from BAE Systems is a 4-channel Software Defined Radio (SDR) that operates from 10 MHz to 6 GHz. Each channel can function independently or in a phase-coherent group. Phase coherence is maintained across multiple modules by sharing sample clocks from a master unit. This system includes 18 front-end pre-selected filters per channel, which are sub-octave above 90 MHz to reduce second-order intermodulation distortion (IMD2).
The RXT7406 uses the XCZU47DR Radio Frequency System on a Chip (RFSoC) to digitize analog inputs and produce wideband complex outputs with a 150 MHz instantaneous bandwidth. It also supports multiple simultaneous narrowband digital down-converter (DDC) outputs. When in transmission mode, the RFSoC generates output waveforms via digital-to-analog conversion (DAC). The SDR provides 6 dBm output power, 1 MHz tuning resolution on the transmit side, an IIP2 of 5 dBm, and a 14 dB noise figure on the receive side. It has spurious levels of -100 dBm, a single-tone SFDR of 72 dBc, and SSB phase noise of -125 dBc/Hz (@1 MHz offset).
This system has a high-speed 100 GigE interface, which simultaneously transports multi-channel wideband digital data and filtered narrow-band streams over VITA 49. It is available as either a 1U high, 19-inch rackmount chassis or a standalone module.
