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RF/IF Conversion Board for 181 C Modem
Xenotran introduces a new test and development tool for CIB/IW waveform design. This RF/IF board is a wideband RF front-end, with full duplex transmit and receive capabilities. This tool supports COTS D/A and A/D development boards to facilitate RF waveform synthesis and receive RF signals in the UHF SATCOM band.
The transmitter chain takes a modulated I/Q (Q is optional) input signal at 0 dBm, amplifies and frequency shifts the signal to an output range from 290 MHz to 318 MHz. The input signal range from 7 to 35 MHz is readily producible for a majority of COTS D/A development boards. Xenotran has designed this support tool to work specifically with Hunt Engineering D/A modules and Xenotran’s 181C modulator implementation.
The receive chain has an input RF bandwidth range from 240 to 268 MHz. The receiver provides about 72 dB of gain, and frequency shifts the incoming signal down to a range from 7 to 35 MHz, where it can be readily sampled by a COTS A/D development board. Xenotran has designed this tool to work specifically with Hunt Engineering A/D modules and Xenotran’s 181C demodulator implementation.
The RF/IF board provides an extremely low phase noise OCXO reference clock and can take an external 10 MHz reference as test requirements warrant. Furthermore, a cross mix signal is provided that gives the test platform an RF loopback capability for UHF SATCOM RF testing without a satellite simulator.
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