RF Design: AVS-1026 (Receiver and Block Down Converter)
The AVS-1026 is a Block Down Converter capable of down converting a 40 MHz band from 950MHz to 1100 MHz in 1 MHz step sizes down to a 70 MHz IF. The AVS-1026 has an 8 dB noise figure and programmable output power levels. The AVS-1026 is control via a 100 BaseT Ethernet connection. Control functions include LO frequency running, output power control and output power level and temperature read back.
The AVS-1025 transmitter is made up of the two board set AVS-1025-001 and AVS-1026-002. The AVS-1025 is capable of transmitting 1 Watt of a user selectable modulation type of either Direct Sequence Spread Spectrum (CDMA) or QPSK.
The AVS-1025 transmitter can be combined with the AVS-1026 block down converter and the AVS-522 software defined radio demodulator to provide a complete communications link. The complete transmit and receive system is denoted by the model number AVS-1027.
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