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Related Manuals for Quasonix QSX-RDMS Series
Summary of Contents for Quasonix QSX-RDMS Series
- Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
- Page 2 Installation and Operation Manual QSX-RDMS-x-xxxx Multi-Mode Trellis Receiver / Demodulator / Bit Synchronizer Rev. 1.2 18 August 2008 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS 1.0 INTRODUCTION ...................... 3 DESCRIPTION .................................... 3 NOMENCLATURE ..................................4 2.0 INSTALLATION INSTRUCTIONS................5 MECHANICAL..................................... 5 THERMAL ....................................7 ELECTRICAL ....................................7 3.0 OPERATING INSTRUCTIONS................. 9 POWER-ON OPERATION................................9 RDMS SERIAL CONTROL PROTOCOL........................... 9 3.2.1 Tier 0 (PCM/FM), Tier I (SOQPSK-TG), and Tier II (Multi-h CPM) Commands ..... 10 3.2.2 PSK Commands .......................... -
Page 4: Introduction
1.0 INTRODUCTION 1.1 Description This document describes the installation and operation of the Quasonix QSX-RDMS-x- xxxx multi-mode trellis receiver / demodulator / bit synchronizer (referred to throughout this document as the “RDMS”). The RDMS is designed to demodulate RF signals in several formats: •... -
Page 5: Nomenclature
Keypad & display on front panel (requires RM package) • DUAL Two receivers in one rack mount chassis (requires RM) For example, a model QSX-RDMS-L-1101-AB is configured as follows: Quasonix product RDMS Receiver / Demodulator / Bit Synchronizer L-band operation... -
Page 6: Installation Instructions
2.0 INSTALLATION INSTRUCTIONS 2.1 Mechanical Unless the RM (rack-mount) option is specified, the RDMS is designed to be mounted by eight (8) 6-32 screws through the holes along the front and back edges, as depicted in Figure 2 on the following page. Page5 of 21 Artisan Technology Group - Quality Instrumentation ... - Page 7 Figure 2. RDMS in 4.00” x 3.00” x 1.00” Airborne Housing. Page6 of 21 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 8: Thermal
2.2 Thermal It is important that the RDMS be kept within its specified operating range of -40°C to +70°C. At maximum bit rates, the unit dissipates approximately 12 watts. At normal ambient room temperatures, a small fan blowing across the top cover is adequate. Higher ambient temperatures will require more airflow and/or a finned heat sink on the cover. - Page 9 data to pin 4 in all modes except QPSK, UQPSK, AQPSK and AUQPSK, where it carries the second channel data. Clock 2 Out / Secondary 3.3 volt TTL clock output for all modes. This pin carries identical Ones Detector clock to pin 4 in all modes except QPSK, UQPSK, AQPSK and AUQPSK, where it carries the second channel clock.
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Page 10: Operating Instructions
• No parity • 1 stop bit For setup and configuration via a standard Windows-based PC, Quasonix recommends the use of Terminal, a flexible, full-featured control interface that is included in the RDMS Product CD. Otherwise, one can use HyperTerminal, included with the standard Windows installation (Start ->... -
Page 11: Tier 0 (Pcm/Fm), Tier I (Soqpsk-Tg), And Tier Ii (Multi-H Cpm) Commands
Initializing... downconverter init... Quasonix Demod/Receiver Interface IRIG-106 Release 07 5493 Union Centre Drive West Chester, Oh 45069 (513) 942-1287 www.Quasonix.com <http://www.Quasonix.com> CAGE CODE: 3CJA9 FPGA Revision: 0x3132 0x0000 PSK FW Revision: 2.0.043 7/29/2008 PSK> Figure 5. RDMS Welcome Message. All commands are one or two alphabetic characters, followed by 0, 1, or 2 arguments. If the command is issued with arguments, there must be a space after the alphabetic characters. - Page 12 Bit Rate Report or set baseband bit rate Examples: Report the bit rate setting Set bit rate to 5 Mbps BR 20 BR 0.6 Set bit rate to 600 Kbps Data Polarity Report or set data polarity inversion state Examples: Report the polarity inversion state Set data inversion off DP 0...
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Page 13: Psk Commands
SDI Status Report the SDI (System Degradation Indication) status required for the RF Networks 2241 Diversity Branch Selector TRL High Mark Report or set the TRL high mark, on a scale from 0.0 – 5.0. Examples: Report the TRL high mark level Set the TRL high mark to 0.2 TH 0.2 Set the TRL high mark to 4.9... - Page 14 Modulation Report or set modulation setting. Examples: Report the modulation setting Set modulation to PCM/FM MO 0 Set modulation to SOQPSK-TG MO 1 Set modulation to Multi-h CPM MO 2 Set modulation to PSK MO 3 Bit Rate Report or set baseband bit rate Examples: Report the bit rate setting Set bit rate to 5 Mbps...
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Page 15: Performance Specifications
4.0 PERFORMANCE SPECIFICATIONS 4.1 RF Input The RDMS is available in three bands: Lower L-band models: 1435.5 to 1534.5 MHz Upper L-band models: 1750.0 to 1855.0 MHz S-band models: 2200.5 to 2394.5 MHz The input impedance is 50 ohms, with a VSWR of less than 1.5:1. 4.2 DC Input In its airborne configuration, the RDMS operates from 28 VDC, with a current consumption of no more than 0.7 amps. -
Page 16: Synchronization
Figure 6. BER Performance for Tier 0, I, and II. 4.5 Synchronization The RDMS offers very fast, reliable acquisition, even at very low signal to noise ratio. Synchronization time is function of modulation type and IF frequency error. Typical SOQPSK results (from 10,000 synchronization trials) are shown below. Page15 of 21 Artisan Technology Group - Quality Instrumentation ... - Page 17 Figure 7. Synchronization Time at Various Signal-to-Noise Ratios. Page16 of 21 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 18: Maintenance Instructions
5.0 MAINTENANCE INSTRUCTIONS The RDMS requires no regular maintenance, and there are no user-serviceable parts inside. Please consult the factory for any maintenance, upgrade, or repair requirements. Page17 of 21 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... -
Page 19: If Module
6.0 IF MODULE The built-in IF filter module, shown in Figure 8, has 8 SAW filters, ranging in bandwidth from 250 kHz to 40 MHz in approximately one-octave steps. These filters serve as anti- aliasing filters ahead of the A/D converter in the demod itself. In addition, they can provide an added measure of adjacent channel interference rejection. - Page 20 Figure 9. SAW Filter Responses, Narrow Group (Plotted on 10 MHz Span). Page19 of 21 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
- Page 21 Figure 10. SAW Filter Responses, Wide Group (Plotted on 60 MHz Span). Page20 of 21 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 22: Technical Support & Rma Requests
7.0 TECHNICAL SUPPORT & RMA REQUESTS In the event of a product issue, customers should contact Quasonix via phone (1-513-942- 1287) or e-mail (support@quasonix.com) to seek technical support. If Quasonix determines that the product issue must be addressed at the factory, a returned materials authorization (RMA) number will be provided for return shipment. - Page 23 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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