rx400a.pdf
USER MANUAL INSTALLATION AND OPERATION HF/VHF/UHF DSP RECEIVER MODEL RX-400A TEN-TEC, INC. 1185 DOLLY PARTON PARKWAY SEVIERVILLE, TN 37862 THIS MANUAL WAS PREPARED IN ACCORDANCE WITH MIL-HDBK-1221 1ST PRINTING 3/10 PRINTED IN U.S.A. PART NO. 74446 Downloaded from www.M manuals search engine RECORD OF CHANGES CHANGE NO.DATETITLE OR DESCRIPTIONENTERED BY 001 7/26/10 para 4.3, page 4-1, add Mission J. Andem Download feature notation 002 7/27/10 para 5.2.5, page 5-5, add AGC mode J. Andem description 003 7/27/10 para 7.6.1, page 7-22, add MissionJ. Andem Download command word listing P/N 74446 Downloaded from www.M manuals search engine WARNING HIGH VOLTAGE Is used in the operation of this equipment. DEATH ON CONTACT may result if personnel fail to observe safety precautions. Learn the areas containing high voltage within the equipment. Be careful not to contact high voltage connections when installing, operating or maintaining this equipment. Before working inside the equipment, turn power OFF and ground points of high potential before touching them. P/N 74446 Downloaded from www.M manuals search engine TABLE OF CONTENTS PARAGRAPHPAGE LIST OF ILLUSTRATIONS. iii LIST OF TABLES iv 1.0INTRODUCTION 1.1Purpose, Scope and Content. 1-1 2.0GENERAL INFORMATION 2.1RX-400A Purpose and Function 2-1 2.2Specifications. 2-4 2.3Environmental Conditions. 2-6 2.4Mechanical. 2-6 2.5Electrical. 2-8 3.0PREPARATION FOR USE AND INSTALLATION 3.1Unpacking and Inspection 3-1 3.2Mounting 3-1 3.3Power. 3-1 3.4RF,IF, Ext. Reference and Audio Connections. 3-2 3.5Remote Control Connections. 3-2 3.6Connection to RCU-400A Receiver Control Unit 3-2 3.7Configuration Dip Switch. 3-5 3.8Fuse. 3-5 3.9Front Panel Controls. 3-5 3.10Headphones Jack 3-5 3.11Front Panel Indicators. 3-5 3.12Cooling Fan 3-5 3.13Chassis Ground 3-5 4.0OPERATION 4.1Power ON/OFF. 4-1 4.2Headphones Volume. 4-1 4.3Status Indicators. 4-1 PN 74446 i Downloaded from www.M manuals search engine TABLE OF CONTENTS, contd PARAGRAPHPAGE 5.0THEORY OF OPERATION 5.1Overview. 5-1 5.2Circuit Descriptions. 5-2 5.2.1 Low Band Preselector. 5-2 5.2.2 Mid Band Preselector. 5-3 5.2.3 First Converter. 5-3 5.2.4 Second Converter. 5-3 5.2.5 Third Converter 5-4 5.2.6 First Local Oscillator. 5-5 5.2.7 Second Local Oscillator. 5-6 5.2.8 Third Local Oscillator. 5-6 5.2.9 Logic/DSP Section. 5-7 5.2.10 Power Supply 5-7 6.0FIRMWARE LOAD AND UPDATE PROCEDURES 6.1Introduction. 6-1 6.2Required Application Tools. 6-1 6.3Firmware Load/Update Steps. 6-1 7.0RECEIVER REMOTE CONTROL 7.1Introduction. 7-1 7.2Serial Interface Description. 7-1 7.2.1 Communications Protocols. 7-1 7.3Command Message Formatting. 7-2 7.4Terminators for Commands and Queries. 7-2 7.5Query Response Formats. 7-3 7.6Control Parameters. 7-3 7.6.1 Command Descriptions 7-5 8.0AUDIO STREAMING 8.1Radio Over IP (RIP) Data Format. 8-1 9.0MAINTENANCE 9.1Factory Service 9-1 9.2Cleaning and Lubrication. 9-1 9.3Inspection. 9-2 9.4Performance Verification and Fault Isolation. 9-2 9.5Fan Speed. 9-2 10.0 PREPARATION FOR SHIPMENT OR STORAGE 10.1Storage. 10-1 10.2Shipment. 10-1 ii PN 74446 Downloaded from www.M manuals search engine LIST OF ILLUSTRATIONS FIGUREPAGE 2-1RX-400A Front View2-1 2-2RX-400A Rear View2-2 2-3RX-400A/RCU-400A Rack Assembly, Front View2-3 2-4RX-400A/RCU-400A Rack Assembly, Rear View2-3 2-5RX-400A Receiver 3-View Drawing2-7 2-6RX-400A Electrical Block Diagram2-8 3-1RX-400A/RCU Installation Drawing3-3 5-1RX-400A Functional Block Diagram5-1 9-1Cooling Fan Filter Removal9-1 iii PN 74446 Downloaded from www.M manuals search engine LIST OF TABLES TABLEPAGE 2-1RX-400A Specifications2-4 2-2Environmental Conditions2-6 2-3Receiver Power Requirements2-8 3-1Rack Mount Kit Contents3-1 3-2RX-400A Audio Connections 3-4 7-1Baud Rate Settings7-1 7-2Command Parameters7-3 iv PN 74446 Downloaded from www.M manuals search engine CHAPTER 1 1.0INTRODUCTION 1.1PURPOSE, SCOPE AND CONTENT OF USER MANUAL This manual provides installation and operation instructions as well as pertinent technical data for the RX-400A HF/VHF/UHF DSP Receiver. The manual was prepared using MIL-STD-1221, Department of Defense Handbook for Evaluation of Commercial Off-The-Shelf (COTS) Manuals as a guideline. It is organized into Chapters along with a Table of contents, List of Illustrations, and List of Tables. Chapter 2 presents general information about the RX-400A Receiver including functional capabilities, performance specifications and physical characteristics. Chapter 3 provides information concerning the unpacking, inspection and mounting of the Receiver. This chapter also provides instructions for making connections to the Receiver as well as identifying the use and location of chassis mounted components. Chapter 4 provides detailed descriptions of all the front panel operating controls, rear panel configuration switch and purpose of front panel status indicators. Chapter 5 provides a brief theory of operation to provide the User with a working knowledge of the Receiver. Chapter 6 contains the information and steps required to initially load or update the Receiver Firmware. Chapter 7 Provides the User and System Manager with the data necessary to effect remote control of the Receiver to include interface description, message formatting and command descriptions. Chapter 8 describes the Audio Streaming function. Chapter 9 provides maintenance information. Chapter 10 gives instructions to prepare the Receiver for storage or shipment 1-1 PN 74446 Downloaded from www.M manuals search engine CHAPTER 2 2.0GENERAL INFORMATION 2.1RX-400A RECEIVER PURPOSE AND FUNCTION The TEN-TEC RX-400A is an all mode, wide RF coverage, HF/VHF/UHF receiver that delivers military-grade performance in a Commercial-Off-The-Shelf (COTS) product. The unit is designed to provide signal acquisition, monitoring and collection functions using manual tuning, frequency scan or directed search memory channel modes of operation. The RX-400A covers the frequency range of 100kHz to 3000 MHz using a mix of high performance analog circuitry for the RF to IF conversion path coupled to a digital back- end comprised of the latest digitizer and DSP techniques to provide a software defined receiver. The DSP section provides 27 digital IF filters from 100Hz to 300kHz and AM, FM, USB, LSB and CW detection modes. Other than a power ON/OFF switch, headphone jacks, volume control and status indicators, the receiver has a blank front panel, thus is designed for remote control operation. Remote control is via a companion RCU-400A Receiver Control Unit or via a host/PC using an optional Graphical User Interface (GUI) software package. Figure 2-1 RX-400A, Front View All interface to the Receiver is via rear panel connectors for power, RF input, IF outputs, line audio output, external reference input and remote control. The rear panel also contains a dip-switch to set the receiver configuration to operational or firmware update modes. 2-1 PN 74446 Downloaded from www.M manuals search engine Figure 2-2 RX-400A, Rear Panel View The RX-400A contains separate signal paths for HF and VHF/UHF frequency bands. The HF section covers the 100kHz to 88 MHz range. The VHF/UHF front-end covers the range from 88 MHz to 3000 MHz. A single RF input connector is used to cover both ranges. Internal firmware commands automatically switch between the HF and VHF/UHF pre-selector sections based on tuned frequency. During HF operation signals entering the HF converter section first pass through a user adjustable step attenuator to enhance receiver performance by reducing interference caused by receive overload in the presence of extremely large signal levels encountered in the HF frequency domain. The attenuator is followed by multiple pole RF filters (pre- selector) to eliminate potential interference from out-of-band signals. For VHF/UHF operation the received signals are routed to the high band pre-selector which contains switched filter sets to cover sub-octave ranges between 88 and 3000 MHz. For other than U.S. Government, U.S. Military or approved foreign government use the RX-400A will not provide coverage of the various cellular telephone bands. The 2 Receiver IF outputs, WBIF 1 and WBIF 2, provide wideband IF signals for use with auxiliary analysis equipment such as IF pan signal monitors and IF-Tape converters. The IF center frequency is 21.4 MHz with a bandwidth of 2 MHz below a tuned frequency of 20 MHz. From a tuned frequency of 20 to 3000 MHz the IF bandwidth is 6 MHz. 2-2 PN 74446 Downloaded from www.M manuals search engine The RX-400A contains two (2) command and control ports, an Ethernet IP RJ-45 connector, and a standard USB connector. Both interfaces support the same command set, with the exception of the digital audio streaming which is only available on the Ethernet IP interface. Generally the USB interface is used as the firmware update port or for connection to an external host PC for receiver control using the optional GUI package, while the Ethernet interface is used for connection to the RCU-400A Receiver Control Unit, for control/status and audio streaming. This port can also be used for connection directly to a host PC with the added benefit of audio streaming capability, providing the host has the optional GUI software installed. Internal RX-400A receiver firmware establishes the operating features and parameters such as tuned frequency, gain, AGC mode, IF filter bandwidth, detection mode, BFO and all the functions associated with frequency and memory channel scan modes. This firmware can be updated in the field using a laptop computer or the system host PC/workstation with the appropriate drivers. See Chapter 6 for details. Figure 2-3 RX-400A Receiver Mounted Side-By-Side with RCU-400A Receiver Control Unit Front View Figure 2-4 RX-400A Receiver Mounted Side-By-Side with RCU-400A Receiver Control Unit Rear View 2-3 PN 74446 Downloaded from www.M manuals search engine 2.2SPECIFICATIONS TABLE 2-1 Parameter Performance Frequency Range.100 kHz to 3000 MHz Tuning Resolution1 Hz steps (10kHz steps at WB IF output) Operating Modes Manual Tune,F1-F2 Scan and Memory Channel directed search Detection Modes.AM, FM, USB, LSB and CW Frequency Stability.TCXO, +/-20Hz below 30 MHz, +/- 0.5ppm above 30 MHz Frequency Accuracy.All oscillators locked to int./ext. reference External Reference.1,2,5 or 10 MHz -10dBm nominal, receiver automatically switches to this reference upon application Spurious Responses.All spurious less than 105 dBm, equivalent input max., except with approx. 6 spurs less than 80 dBm Image Rejection.80 dB typical, 2-3000 MHz IF Rejection80 dB typical, 2-3000 MHz BFOTunable in CW mode only, +/- 8 kHz in 10 Hz steps, fixed offset in USB/LSB modes, disabled in AM, FM modes Memory Channels.1000 each, full receiver parameter set-up Scan Rate.100 channels per second or faster, adjustable Gaze, Dwell and Dead times Synthesizer Lock Time. Approximately 1 millesecond SquelchAdjustable, 0-127 dB Selectivity.Std. 27 IF bandwidth set, 100 Hz to 300 kHz, independent of detection mode, 1.5:1 shape factor or better, DSP derived, 3 dB ripple, max. Sensitivity.Mode S/N BWdBm USB/LSB 10 dB 3 kHz-117 AM (50%) 10 dB 6 kHz -108 FM-NB 16 dB 15 kHz -107 FM-WB 16 dB 50 kHz -102 FM-WB 16 dB 200 kHz -96 Dynamic Range. Freq. NF(typ) In-band IIP (typ) 2-88 MHz 12 dB -2 dBm 89-1650 MHz 13 dB -3 dBm 1651-3000 MHz 14 dB -3 dBm 2nd Order Intercept Point.50 dBm, minimum 2-4 PN 74446 Downloaded from www.M manuals search engine TABLE 2-1, Contd SPECIFICATIONS ParameterPerformance AGC.Fast, Medium, Slow Pin-B, AC Low; Pin-C, AC Ground FIGURE 2-6 RX-400A ELECTRICAL INTERFACE 2-8 PN 74446 3.0PREPARATION FOR USE AND INSTALLATION RX-400A HF/VHF/UHF RECEIVER Phones 1 Phones 2 Status Indicators Volume Control Power Switch RF Input 100kHz-3000MHz IF 1, 21.4 MHz IF 2, 21.4 MHz External Reference Line Audio 90-260 VAC Power Downloaded from www.M manuals search engine 3.1UNPACKING AND INSPECTION Examine the shipping carton for damage before unpacking the unit. If the carton is damaged, attempt to open it in the presence of the shipping agent. If this is not possible then document or photograph the carton damage for a matter of record. If undamaged then retain the carton and packing material for future use. Remove the packing material from the top of the unit and lift the RX-400A Receiver free of the carton. Next remove the clear plastic bag from the unit. Inspect the unit for external damage with particular attention to dents or bent sheet metal. Also inspect front panel components and rear panel connectors for damage. If external damage is evident then remove top and bottom covers of the RX-400A Receiver by removing multiple screws along the cover edges, then inspect all the internal assemblies for damage such as cracked circuit cards or broken or loose components. DO NOT ATTEMPT TO OPERATE THE EQUIPMENT IF INTERNAL DAMAGE IS NOTED. Upon finding any damage contact the shipping agent and contact the TEN-TEC factory to arrange for unit repair. 3.2MOUNTING The RX-400A may be mounted as a single unit or side-by-side with another 2U half-rack piece of equipment in a standard EIA 19” rack enclosure. For single unit rack installation please contact TEN-TEC to secure the correct rack mount kit. For most common mounting arrangements the RX-400A will be installed side-by-side with another RX-400A Receiver or companion RCU-400A Receiver Control Unit to fill a 2U rack opening. Side-by-side mounting is accomplished by using the RM-400-2 Rack Mount Kit. The RX-400A has 3 threaded inserts on each side of the chassis to accept 10-32 x 0.50” long screws for use with customer furnished chassis slides. The hole pattern is compatible with Jonathan model 375QD or equivalent. The rack mount kit contains 4 pieces as listed in Table 3-1. TABLE 3-1 RM-400-2 Rack Mount Kit Contents ItemDescriptionQuantity 001U-Channel Bracket 1 002Front Panel Center Bracket 1 003Rack Mount Ears (R & L) 2 00410-32, Hex Head Attachment Screws 12 3-1 PN 74446 To use the RM-400-2 rack mount kit, first attach the U-channel bracket to the inside side of one of the chassis using the rear 2 mounting holes out of the set of 3, with the furnished screws. Then attach the front panel bracket to the chassis with the flat side Downloaded from www.M manuals search engine toward the front panel surface.
