Listen Technologies 863 MHz, 863.050, 863.200, 863.400, 863.5 LR-400/500 Block Diagram

LR-400/500

LR-400/500 Block Diagram

POWER

ANTENNA

3.5 mm Connector

VOLUME

Off

Companding

Q-Technology

de-emphasis

de-modulation

LCD Display

Universal

Power Supply

(not included)

Power Supply

CPU Module

Power charge indicator

Red LED

Down

Seek

Tip

Ring

Sleeve

115/230VAC

50/60 Hz

(2) AA Batteries

ALkaline or NiMH

NiMH

Alkaline

Contents

Main Page $VVLVWLYH/LVWHQLQJ/DQJXDJH,QWHUSUHWDWLRQ6RXQGHOG7RXU*URXS&RQIHUHQFLQJ Lifetime Warranty the best in the business! The Word Around Listen Page Portable FM Table of Contents Page Page Page Page Page Frequency Modulation (FM) Technology Overview Multipath Antenna Positioning System Overview Input Source 3.5mm Phone Wiring System Overview Receivers Transmitter Key concepts in designing a portable FM system Channel Selection Range Key concepts in designing a portable FM system Eliminating Multipath Squelch Transmitter power level Multiple Portable Systems Page Page Page Page Page LT-700 Package Contents /LVWHQ&RQJXUDWLRQV LT-700 Users Manual Table of Contents Page /76SHFLFDWLRQV LT-700 Block Diagram LT-700 Quick Reference %DWWHU\/HYHO,QGLFDWRU Unpack the Product Open the front access door Select Battery Type Set Mic Sensitivity Switch Part # Description Setting Place Batteries in Unit Page LT-700 Operating Instructions Turn Unit On Power On/O Button Antenna Positioning Select the channel for transmitting LT-700 Operating Instructions To lock on a channel Press and hold the DOWN button for 5 seconds Locking the Transmitter on One Channel Program Mode Overview 4A 4B 4C Reset to default settings Resetting to defaults 4A 4B Accessories for LT-700 Accessories Page Page Page Page Page Page LR-400/500 Package Contents /LVWHQ&RQJXUDWLRQV LR-400/500 Users Manual Table of Contents Page /56SHFLFDWLRQV $XGLR 38 /56SHFLFDWLRQV LR-400/500 Block Diagram LR-400-863 Quick Reference LR-500-863 Quick Reference LR-400/500 Setup Instructions Remove the product Open the front access door Select Battery Type LR-400/500 Setup Instructions Place Batteries in Unit Connect an Earphone or Headset Page Turn Unit On Antenna Placement Select a Channel 2A Adjust the volume control Select the channel using SEEK To lock on a channel Press and hold the SEEK button for 5 seconds Locking the Receiver on One Channel Squelch Programming Entering Squelch Program Mode Adjusting the Squelch level Squelch Set the squelch setting to the highest level If the receiver is close to the transmitter, set the squelch high If in an area that has a lot of interference, set the squelch high For maximum amount of range, set the squelch to a low level DX/Local DX Mode (default) After the receiver has been reset Resetting to defaults Reset to default settings LR-500 Programming Instructions (LR-500 only) Programming Instructions Entering Program Mode To enter program mode To program Accessories for LR-400/500 Accessories /$ /$ /$ Page Page Page Page Page Page Page Page Page LT-800Supplementary Battery Charging Information Charging with a drop-in charger Supplementary Troubleshooting Troubleshooting LT-800Supplementary Troubleshooting Troubleshooting Page Page Supplementary Compliance, Warranty and Contact Information Contacting Listen Compliance Information Warranty Page Page Printed in the United States of America

Listen Technologies LR-400/500 Block Diagram

Models: 863 MHz 863.050 863.200 863.400 863.5