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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

PRINTING – 3/10

PRINTED IN U.S.A.

PART NO. 74446

Summary of Contents for RX-400A

Page 1: ...ION 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 I...

Page 2: ...TION ENTERED 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 Missio...

Page 3: ...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 Befor...

Page 4: ...OR USE AND INSTALLATION 3 1 Unpacking and Inspection 3 1 3 2 Mounting 3 1 3 3 Power 3 1 3 4 RF IF Ext Reference and Audio Connections 3 2 3 5 Remote Control Connections 3 2 3 6 Connection to RCU 400A...

Page 5: ...Required Application Tools 6 1 6 3 Firmware Load Update Steps 6 1 7 0 RECEIVER REMOTE CONTROL 7 1 Introduction 7 1 7 2 Serial Interface Description 7 1 7 2 1 Communications Protocols 7 1 7 3 Command...

Page 6: ...RCU 400A Rack Assembly Front View 2 3 2 4 RX 400A RCU 400A Rack Assembly Rear View 2 3 2 5 RX 400A Receiver 3 View Drawing 2 7 2 6 RX 400A Electrical Block Diagram 2 8 3 1 RX 400A RCU Installation Dr...

Page 7: ...RX 400A Specifications 2 4 2 2 Environmental Conditions 2 6 2 3 Receiver Power Requirements 2 8 3 1 Rack Mount Kit Contents 3 1 3 2 RX 400A Audio Connections 3 4 7 1 Baud Rate Settings 7 1 7 2 Comman...

Page 8: ...eiver 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...

Page 9: ...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...

Page 10: ...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...

Page 11: ...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 est...

Page 12: ...dB typical 2 3000 MHz IF Rejection 80 dB typical 2 3000 MHz BFO Tunable 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 recei...

Page 13: ...2 MHz BW below 20 MHz receiver tuned frequency S Meter Reports signal level to host in dBm on request Control Interface s 2 Ethernet TCP IP RJ 45 and USB std 2 0 Firmware Can be updated remotely into...

Page 14: ...L CONDITIONS Parameter Specification Operating Temperature 0 to 50 degrees C full specification Operating Limits Functional 10 to 60 degrees C Storage Temperature 40 to 85 degrees C Humidity 10 95 wit...

Page 15: ...FIGURE 2 5 RX 400A RECEIVER 3 VIEW DRAWING PN 74446 2 7...

Page 16: ...cular MS type connector 3 pin male Spikes and Noise Designed to meet MIL STD 704 but not tested at factory Power Connection Pin A AC High Pin B AC Low Pin C AC Ground FIGURE 2 6 RX 400A ELECTRICAL INT...

Page 17: ...nge for unit repair 3 2 MOUNTING 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 insta...

Page 18: ...BIF outputs are connected to external devices using SMA connectors cables Likewise an external reference signal can be connected with a SMA cable Balanced Line Audio is available on a rear panel 15 pi...

Page 19: ...FIGURE 3 1 RX 400A and RCU 400A INSTALLATION PN 74446 3 3...

Page 20: ...TABLE 3 2 RX 400A AUDIO CONNECTIONS PN 74446 3 4...

Page 21: ...river Replace it with a 5x20 mm 1 Amp 250VAC time delay fuse 3 9 FRONT PANEL CONTROLS The RX 400A is designed for remote operation so the front panel controls are limited A switch is provided to contr...

Page 22: ...3 STATUS INDICATORS Three LED indicators are provided to indicate the operating status of the Receiver The green DATA LED blinks or is on steady when data is being transferred to from the Receiver to...

Page 23: ...GC leveled and presented to the DSP board On the DSP board a high speed A D converter drives an AD6620 Digital Down Converter which applies fine tuning further bandpass filtering and decimation to the...

Page 24: ...er radio modules A front mounted fan supplies forced air ventilation Cooling air enters at the front mounted filter and exits through vent holes around the rear perimeter of the chassis The front pane...

Page 25: ...the selected sub band through another amplifier to the MID HIGH BAND PRESELECTOR board output 5 2 3 First Converter The FIRST CONVERTER module contains the first mixer and first IF amplifier for all...

Page 26: ...s range from 118 48 to 118 72 MHz to fill in the 250 kHz tuning steps produced by the divided down first LO The third LO injection signal is amplified and applied to the LO port of the mixer A 159 MHz...

Page 27: ...d only on those signals that are inside the chosen selectivity bandwidth Fast Medium and Slow AGC modes with fixed pre determined attack and decay times are provided along with a Programmed AGC mode w...

Page 28: ...contains a single loop integer N frequency synthesizer driving an N 1 mixing loop to develop a 117 71 to 119 7 MHz output tuning in 10 kHz or optionally 1 kHz steps Serial data from the DSP board con...

Page 29: ...PLD An AD6620 down converter accepts the 3rd IF signal via a coax connector The 3rd IF center frequency is 21 4 MHz The Digital down Converter DDC comprised of two A D converters converts the signal t...

Page 30: ...eceiver s USB port Loading the firmware requires a USB to Serial Converter driver installed in the laptop or PC being used to perform the download This driver is available on the Internet at FDTIchip...

Page 31: ...t the file then click Open 17 The load preamble text will be displayed then the Erase steps will occur and the firmware will then load 4096 lines of new firmware code 18 Upon completion of download a...

Page 32: ...SCII standard encoded characters A baud rate hardware configuration can be selected via switches 2 and 3 of the Configuration DIP switch The USB interface of the RX 400A is physically implemented on a...

Page 33: ...e thru the message terminator are discarded In the event the buffer is overrun its contents are discarded All other incoming data is buffered and processed in the order in which it was received If the...

Page 34: ...e 7 2 below for supported control commands Note All commands are 2 ASCII characters TABLE 7 2 COMMAND PARAMETERS Description Set Command Query Command Set Attenuator A0 A0 BITE Level 1 B1 Not Applicab...

Page 35: ...ot Applicable I3 Extended Firmware Info Not Applicable I4 Recall Memory Channel P0 P0 report only Store current parameters in Memory Channel P1 Not Applicable Memory Scan Channel Range Start Stop P2 P...

Page 36: ...in the HF bands only Format Set command A0n cr Get command A0 cr Response A0n cr 1 Definitions N 1 or 0 where 1 turns the attenuator on and 0 turns the attenuator off Where 1 20dB and 0 0dB Initiates...

Page 37: ...id The BFO frequencies are selected by the BFO commands Sets the amount of AGC attenuation to apply Adjusts from 000 120 dB range with 0 10 dB resolution Can be set in any mode Receiver gain is reduce...

Page 38: ...width Filters Store Current Parameters in Sweep Range A H C4 Automatic Gain Control C5 7 7 Format Set command C4 cr Get command C4 cr Definitions The operator may select one of 18 available IF bandwid...

Page 39: ...be selected for the current frequency selected by the receiver AUTO MODE The receiver provides 3 preset Automatic Gain Control rates and a programmable AGC mode The operator may select Slow Medium Fa...

Page 40: ...nload default values to EEprom and is defined as 12461 This command will load all defaults settings to EEPROM A valid five character password must enter with this command before the command will be ac...

Page 41: ...ons AAA The 1st octet of the IP address Range 0 255 BBB The 2nd octet of the IP address Range 0 255 CCC The 3rd octet of the IP address Range 0 255 DDD The 4th octet of the IP address Range 0 255 The...

Page 42: ...The 4th octet of the gateway IP address Range 0 255 The octet addresses can be specified using 1 2 or 3 digits If less than 3 digits are specified for the octet address a dot character 0x2E must sent...

Page 43: ...select the start and end frequency range for P SCAN mode which allows the radio to search for activity in a given frequency range Format Set command F2SSSSSSSSSS dot EEEEEEEEEE cr Get command F2 cr Re...

Page 44: ...or the specified range using command F2 If no range has been specified using command F2 the receiver the valid range will be from 0 3Ghz in 1hz increments if no step size is specified via command F5 I...

Page 45: ...fied Format Set command F8NNSSSSSSSSSS dot EEEEEEEEEE cr 1 Get command F8NN cr 1 Response F8NNSSSSSSSSSS dot EEEEEEEEEE cr Definitions NN specifies the record number 0 24 Note If NN value is 00 the ra...

Page 46: ...ls to try to maintain an approximately constant average output level of varying signal levels Format Set command G2NNNN cr Get command G2 cr Response G2NNNN cr NNNN Valid range 0001 9999 in ASCII deci...

Page 47: ...I2 Format Set Command Not Applicable Get Command I2 cr Response CCCCCCCCCCCCC cr Definitions This command will report the firmware version number The following strings are defined and will be reported...

Page 48: ...sponse I3SSSSSSSS cr Definitions This command will report the serial number assigned to each unit by Ten Tec The following format is defined To be determined Stores current operating Frequency and Det...

Page 49: ...en scanning Format Set command P1CCCBBMSSRFFFFFFFFFF cr 1 Get command P1CCC cr Response P1CCCBBMSSRFFFFFFFFFF cr Definitions CC Channel Number to assign parameters Range 00 999 in ASCII decimal format...

Page 50: ...itted Format Set command P4X cr Get command Not applicable Definitions X S start scanning for activity on pre programmed memory channels The receiver will use the specified channel range via command P...

Page 51: ...e audio will be muted Format Set command T1TTTTTTTT cr Get command T1 cr Response T1TTTTTTTT cr 1 Definitions TTTTTTTT represents the time in ASCII decimal format Value number of milliseconds Valid ra...

Page 52: ...TTTTTTT cr Get command T3 cr Response T3TTTTTTTT cr TTTTTTTT represents the time in ASCII decimal format Value number of milliseconds Valid ranges are 0 99999999 Gaze time is the time the radio will s...

Page 53: ...en this command is received the multi addressing mode is ignored and all the units connected on the serial or Ethernet bus assumes non multi addressing mode The units will respond to all commands unti...

Page 54: ...0xnn 0xnn 0xnn Time Counter last 64 Octet 8 11 RTP Sync Source 0x45 0xmm 0xnn 0xoo ID of the Radio last 4 MAC digits The above octets were arranged so that a third party program that supports RTP audi...

Page 55: ...packing 9 2 CLEANING AND LUBRICATION Panel surfaces may be cleaned using a soft damp cloth and a mild detergent solution Never use caustic cleaners or any type of solvent as this may damage painted an...

Page 56: ...ls unit it is anticipated these checks will be made using the companion RCU 400A Receiver Control Unit Fault isolation is also accomplished using the RCU 400A Receiver Control Unit This is done by dep...

Page 57: ...the center of the packing material 4 Place packing material on top of the unit and seal the container 5 Fasten labels or stamps and with indelible ink write the word FRAGILE on all sides of the contai...

Page 58: ...This Page Intentionally Left Blank PN 74446...

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