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Summary of Contents for Lectrosonics DR175
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Page 1: Operating Instructions
DR175 COMPACT RECEIVER OPERATING INSTRUCTIONS and trouble-shooting guide Digital Code Squelch LECTROSONICS, INC. Rio Rancho, NM... -
Page 2: Table Of Contents
INTRODUCTION Thank you for selecting the Lectrosonics system. The DR175 represents over 70 years of combined experience in the design of RF and audio devices and sets new standards for RF performance and flexibility. This receiver utilizes a “maximal ratio combining” technique, providing a very effective type of diversity reception. -
Page 3: Front Panel Controls And Functions
AUDIO LEVEL This control knob adjusts the audio level of the XLR output on the rear panel. RATIO DIGITAL DIVERSITY CODE OPTI-BLEND AUDIO LEVEL LECTROSONICS MODULATION –20 0dB POWER CODE REAR PANEL CONTROLS AND FUNCTIONS ANTENNA INPUTS These inputs connect to any 50 ohm antenna with a BNC type connector. -
Page 4: Antenna Use And Placement
The DR175 receiver offers a sophisticated diversity design which overcomes drop-out problems in almost any imagin- able situation. In the event, however, that you do encounter a dropout problem, first try moving the antenna at least 3 or 4 feet from where it was. -
Page 5: Operating Instructions
Ratio Diversity Receiver OPERATING INSTRUCTIONS 1) Connect the power supply. 2) Attach and place the antennas. 3) Connect the audio cable. 4) Set the front panel AUDIO LEVEL control fully counter-clockwise and set the POWER switch to ON. Check to see that the red POWER LED lights up. -
Page 6: Troubleshooting
3) Recorder or sound system off, or not properly adjusted DR175 REPLACEMENT PARTS and ACCESSORIES Part No. Description CH-12 110 Volt AC adapter for DR175 receiver. A-170 AC 1/4 wave whip on a right angle BNC connector. A-185 Coax Remote, folded-dipole antenna with coaxial cable. -
Page 7: Specifications And Features
Ratio Diversity Receiver SPECIFICATIONS AND FEATURES Operating frequencies: 150 to 216MHz, crystal controlled Sensitivity: -110dBm for 20dB Sinad (0.7uV) Signal/noise ratio: 96dB flat; 99dB A-weighted Squelch quieting: Greater than 109dB AM rejection: Below the noise at all input levels Modulation acceptance: Greater than ±15kHz IF Selectivity: 150kHz interference bandwidth;... -
Page 8: Service And Repair
There are no adjustments inside that will make a malfunctioning unit start working. LECTROSONICS service department is equipped and staffed to quickly repair your equipment. In-warranty repairs are made at no charge in accordance with the terms of the warranty. Out of warranty repairs are charged at a modest flat rate plus parts and shipping. - Page 9 Ratio Diversity Receiver This page intentionally blank. Rio Rancho, NM – USA...
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Page 10: 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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