Multi-Channel Telemetry Receiver System


Surveillance and High Security

Multi-Channel Telemetry Receiver System

Multi-Channel Telemetry Receiver System


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MS-8323 is suitable for reception, tracking and demodulating FM radio signals of telemetry transmitters. up to 72 simultaneous independent channels.

The high-performance receivers are highly tolerant to frequency drift, able to be used in telemetry applications where the transmitter frequency is prone to drifting, for example where the telemetry tramsmitters are operating under severe environmental conditions or are not crystal-controlled. The receiver hunts for the transmitter frequency within user-specified frequency range, at a predefined hunting rate. Using advanced low-noise DDS (Direct Digital Synthesis) facility, the frequency tracking adjustments cause only a minimal disruption to the received signal, not causing more than 0.5% noise (relative to output signal level). If a transmitter is lost, the receiver will automatically commence hunting.

This system is based on a 19” rackmounted industrial computer. The front panel features a high-contrast wide-angle display. There is provision for connection of an external keyboard and mouse.

Spurious radiation -70 dBm max.
Spurious Rejection 60 min dB.
Dynamic Range 90 min dB.
General Specifications
Humidity 5 to 90% relative humidity (non-condensing)
Hunting rate 100 kHz/s to 1 MHz/s (user adjustable)
Latency Channel to channel: Less than 2 µs
Operating temperature 10 to 40 deg C
Selectivity -60 DB @ 1 MHz
Frequency 35 - 150 MHz (frequency range can be modified upon request)
Power Selectable 100/120 or 220/240 VAC, 50 or 60 Hz, 110 W max
Sensitivity RF input: -90 DBm @ 12 dB SINAD
Bandwidth Demodulated signal 20 Hz to 50 kHz @ -3 dB
Demodulation FM response time / latency The demodulated output responds to an FM input change in less than 50 µs or less than 5% phase shift at 1 kHz
Channels 8 (scalable to 72)
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