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Lectrosonics UDR700 Operating Instructions Manual

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UDR700
ENCRYPTED DIGITAL UHF RECEIVER
OPERATING INSTRUCTIONS
and trouble-shooting guide
LECTROSONICS, INC.
Rio Rancho, NM
www.lectrosonics.com

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Summary of Contents for Lectrosonics UDR700

  • Page 1 UDR700 ENCRYPTED DIGITAL UHF RECEIVER OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC. Rio Rancho, NM www.lectrosonics.com...
  • Page 2 UDR700 LECTROSONICS, INC.

  • Page 3: Table Of Contents

    Encrypted Digital Receiver Table of Contents INTRODUCTION .................. 4 RECEIVER BLOCK DIAGRAM ............5 FRONT PANEL CONTROLS AND FUNCTIONS ....... 6 REAR PANEL CONTROLS AND FUNCTIONS ......... 7 MENUS AND FUNCTIONS ..............8 INSTALLATION AND OPERATING INSTRUCTIONS ......9 TROUBLESHOOTING ...............10 PROTECTING THE ENCRYPTION KEY..........10 SPECIFICATIONS ................12 REPLACEMENT PARTS and ACCESSORIES ........12...

  • Page 4: Introduction

    RF SECTION uses a proprietary audio encoding scheme to lower the bit rate The RF section of the UDR700 is a traditional dual-conversion and provide the high entropy required for secure encryption. superheterodyne receiver. Once the power from the antennas...

  • Page 5: Receiver Block Diagram

    Encrypted Digital Receiver RECEIVER BLOCK DIAGRAM Input Input RSSI Bandpass Bandpass Integrated Circuit Filter Filter Mixer Mixer 4-Way 10.7 Antenna Dual Phase Tracking Tracking Quadrature Kill Switch Combiner Filter Attenuator Filter Detector A/B/Rot. Filters 0/90/180/270 Input Local Local Bandpass Oscillator Oscillator Filter Microprocessor...

  • Page 6: Front Panel Controls And Functions

    This 1/4 inch jack will drive a wide variety of different types of The UDR700 receiver needs at least 5uV of RF signal to begin headphones. It is also usable as a second high quality audio operating - this is the approximate squelch threshold.

  • Page 7: Rear Panel Controls And Functions

    AC POWER SUPPLY A calibrated control on the rear panel adjusts the output level The UDR700 has a universal switching power supply which will in 5 dB steps, referenced in dBu. This control knob adjusts the operate on AC voltages from 95 to 240 Volts, 50 or 60 Hz.

  • Page 8: Menus And Functions

    POWER UP SEQUENCE This makes it easier to avoid occupied UHF TV channels in the geographical area of operation. At powerup, the UDR700 displays three messages in sequence followed by one of the three tuning menus: GROUP TUNING MENU 1. BUTTONS ENABLED (or DISABLED) The Group Tuning menu displays the current group (the three 2.

  • Page 9: Installation And Operating Instructions

    When using remote antennas, attach the antenna cables sequence never repeats (i.e. the PRNG is free-running), so the to the BNC jacks on the rear of the UDR700 and place the receiver must be on and ready to receive when the transmitter antennas.

  • Page 10: Troubleshooting

    UDR700 SETTING AND RESETTING THE ENCRYP- After adjusting the transmitter gain, set the rear panel AUDIO OUTPUT level control on the receiver rear panel to TION KEY the desired level. The -40 setting is approximately equal to 10mV, the 0 position will give 0.775VRMS, and the 15 NOTE: In security level 3, it is necessary for the receiver to be setting will allow up to 4.4 VRMS when the transmitter is...
  • Page 11 Security features vastly different from the documentation. This manual applies only to UDR700 version V3.0/3.0 and higher. To check the version of the receiver, power it on and note the version number displayed. To check the version of the transmitter, power it on and note whether the audio leds blink to indicate security level 1, 2 or 3.

  • Page 12: Specifications

    Log Periodic Dipole Array antenna A700A Log Periodic Dipole Array antenna 21499 Replacement AC power cord RMP200-1 Rack mount kit for single UDR700 receiver RMP200-2 Rack mount kit for two UDR700 receivers MC65 Cable, 1/4” stereo phono to 3.5mm stereo phono, 10ft UDR700PC Programming cable (replacement) LECTROSONICS, INC.

  • Page 13: Service And Repair

    There are no adjustments inside that will make a malfunctioning unit start work- ing. LECTROSONICS service department is equipped and staffed to quickly repair your equip- ment. In-warranty repairs are made at no charge in accordance with the terms of the war- ranty.

  • Page 14: Warranty

    This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.

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