Features, specifications, options, and possible band configurations for Quasonix’s third-generation compact (airborne) RDMS™ telemetry receiver.
Airborne Accuracy
Quasonix’s multi-mode compact RDMS™ telemetry receiver features an extremely sensitive RF downconverter integrated with the company’s market-leading ARTM demodulator and bit synchronization in a compact 12 cubic inch flight-ready package. When compared to the competition, RDMS™ offers a remarkable 6 to 8 dB sensitivity advantage. What you choose to do with the extra link margin is up to you.
Get Stronger Core Performance
Benefit from lower noise, higher gain, faster sync, and greater ability to hold sync than any competing demodulator—in all ARTM modes, under the most challenging conditions.
View datasheet
Be Prepared for Any Mission
With a tuning range from 200 MHz to 5250 MHz, simultaneous RS-422 and TTL outputs, a built-in playback demodulator and integrated three-channel spectrum analyzer, and much more, you’ll have the capabilities you need for success every mission.
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Ace the Toughest Tests
LDPC error correction nearly triples operating range; STC eliminates deep fades in two-antenna setups; and the industry’s best Adaptive Equalization (optional) deftly neutralizes multipath.
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Understand Your Data’s Quality—For Real
RDMS features the industry’s most accurate Data Quality Metric (DQM)—a real-time assessment of BEP—coupled with flawless Data Quality Encapsulation (DQE), rigorously powering downstream processes like BSS.
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Ensure Optimal Data Output
The receiver’s integrated best-channel selector—a Quasonix exclusive—uses DQM bit by bit to choose the highest-quality data, matching or outperforming traditional maximal-ratio combining across all channel conditions.
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Documents
Quasonix Catalog
Catalog of Quasonix’s full product line including transmitters, antennas, receivers, networking equipment, and test equipment. Also includes examples of possible product configurations.
RDMS™ Receiver Adaptive Equalizer Datasheet
Describes Quasonix’s telemetry receivers’ Adaptive Equalizer Mode, which combats multipath fading.
Receiver and Transmitter Space-Time Coding Datasheet
The Quasonix Space Time Coding Solution eliminates link outages caused by the “two-antenna problem,” improving behavior of received signal power and overall link availability.
Receiver and Transmitter Low-Density Parity Check Datasheet
The Low Density Parity Check (LDPC) Forward Error Correction mode improves link margin equivalent to nearly tripling the operating distance on your telemetry link.
Space-Time Coding ITC Paper
“Space-Time Coding Solution to the Two-Antenna Interference Problem,” by Mark Geoghegan & Louis Boucher; presented at ITC 2014.
SOQPSK with LDPC ITC Paper
“SOQPSK with LDPC: Spending Bandwidth to Buy Link Margin,” by Terry Hill & Jim Uetrecht; presented at ITC 2013.
Receiver and Transmitter Low-Density Parity Check Guide
This technical guide introduces Low-Density Parity Check (LDPC) encoding, its uses and benefits, the Quasonix products it is available for, and considerations for optimal set-up and use.
1.1.1
RDMS™ Receiver Bit Error Rate Testing Guide
Instructions and commands for bit error rate testing on Quasonix RDMS™ receivers, plus guidance on using test noise (AWGN) commands.
1.0.1
RDMS™ Receiver Telnet and Serial Control Protocol Guide
Instructions for accessing and using Quasonix RDMS™ receivers’ serial control interface, including commands and syntax, for debugging purposes. The Telnet interface should only be accessed by advanced users. Contact Quasonix customer support before using these options.
1.0.5
RDMS™ Receiver Scripting Guide
Technical guide for understanding, creating, and editing scripts for Quasonix RDMS™ receivers.
1.0
Receiver Manuals
Find all receiver User Manuals here. This page also explains how to find the onboard User Manual—matched to your unit’s software version—in rackmount units built or updated since late 2016.
RDMS™ Compact Receiver Manual (Gen 3)
Operating instructions for Quasonix’s third-generation compact RDMS™ telemetry receiver.
1.2.25
RDMS™ Compact Receiver Manual (Gen 2)
Installation and operation of the second-generation Quasonix Compact RDMS™ Telemetry Receiver.
2.2.1
Phase Noise Compensation Training
Presents the theory of using the phase tree for data detection to improve bit error rate (BER), how to recognize phase noise, and when to use Phase Noise Correction (PNC).
Receiver and Transmitter Terminal Software
A simple serial port (COM) terminal emulation program used for serial communication with Quasonix products.
1.9b
<1 MB
SOQPSK Adaptive Equalization Demo (Training)
Original, received (three-ray), and equalized SOQPSK signal.
(Used in TM Smorgasbord training, Day 2.)
PCMFM Adaptive Equalization Demo (Training)
Original, received (three-ray), and equalized PCMFM signal.
Used in TM Smorgasbord training, Day 2.)
Maximal Ratio Combiner Simulation
Simulation of maximal-ratio diversity combining, showing how it phase aligns and coherently sums two signals but non-coherently sums their noise, resulting in up to 3 dB improvement in signal-to-noise ratio.
RDMS™ Adaptive Equalizer Demonstration – PCMFM
Brief demonstration of how our RDMS™ Adaptive Equalizer can conquer multipath, transforming a PCMFM signal with severe three-ray multipath distortion into nearly perfect data.
(Used in TM Smorgasbord training, Day 2.)
RDMS™ Adaptive Equalizer Demonstration – SOQPSK
Brief demonstration of how our RDMS™ Adaptive Equalizer can conquer multipath, transforming an SOQPSK signal with severe three-ray multipath distortion into nearly perfect data.
