Digital Receiver - RDM020 - GDP Space Systems - Telemetry Systems, Synchronizers, BERTS, Demodulaters, Modulators, Receivers, Frame Synchronizers, decommutator, Simulators

The RDM020 Digital Receiver is an integrated solution consisting of an IF Signal Processor, two Demodulators and a Bit Synchronizer contained on a single slot 6U VME card. This state-of-the art module provides a compact, cost competitive, flexible solution to a wide variety of communications link scenarios.

Features

VME Format

6U Single Slot

4 Input Ports

90 dB Isolation

Selectable IF

DC to 75 MHz

35 dB Dynamic Range
Programmable Acquisition & Tracking Range
Multi-Waveform Demodulation

Analog / Digital PM
BPSK
QPSK
SQPSK
UQPSK

Dual Demodulators

PM
PSK
PM / PSK

Integrated Bit Synchronizer
Remote Control

RS232
VME Bus (Option)

RDM020

Up to four IF input signals may be applied to the input selector of the RDM020 Digital Receiver. The input signal selector multiplexer provides 90 dB of channel isolation thus insuring that only the signal of interest is applied to the IF signal processor.

Eight intermediate frequencies are program selectable within the range of 1.024 MHz to 75 MHz. Depending upon specific user requirements, a band-pass or low-pass filter may be installed on the module. The demodulation process as well as baseband bit synchronization process is totally performed in the digital domain.

Signal acquisition is performed by scanning the IF within the configured acquisition band (±500 Hz) centered about the selected IF. PM / PSK waveforms are additionally scanned for acquisition at the subcarrier frequency. Once signal acquisition is complete, synchronized signal tracking is performed whereby continuous validation of the lock state is maintained.


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The RDM020 Digital Receiver is an integrated solution consisting of an IF Signal Processor, two Demodulators and a Bit Synchronizer contained on a single slot 6U VME card. This state-of-the art module provides a compact, cost competitive, flexible solution to a wide variety of communications link scenarios.
Features
VME Format 6U Single Slot 4 Input Ports 90 dB Isolation Selectable IF DC to 75 MHz 35 dB Dynamic Range Programmable Acquisition & Tracking Range Multi-Waveform Demodulation Analog / Digital PM BPSK QPSK SQPSK UQPSK Dual Demodulators PM PSK PM / PSK Integrated Bit Synchronizer Remote Control RS232 VME Bus (Option)
Up to four IF input signals may be applied to the input selector of the RDM020 Digital Receiver. The input signal selector multiplexer provides 90 dB of channel isolation thus insuring that only the signal of interest is applied to the IF signal processor. Eight intermediate frequencies are program selectable within the range of 1.024 MHz to 75 MHz. Depending upon specific user requirements, a band-pass or low-pass filter may be installed on the module. The demodulation process as well as baseband bit synchronization process is totally performed in the digital domain. Signal acquisition is performed by scanning the IF within the configured acquisition band (±500 Hz) centered about the selected IF. PM / PSK waveforms are additionally scanned for acquisition at the subcarrier frequency. Once signal acquisition is complete, synchronized signal tracking is performed whereby continuous validation of the lock state is maintained.