Listen Technologies LR-400, LR-300 user manual LR-500 Specifications

Page 9

LR-500 Specifications continued

 

Specification

LR-500-072

LR-500-216

 

Set Up Controls

Programmable channel selection (see below), alkaline/NiMH batteries

 

 

and squelch, SQ enable/disable

 

 

 

Controls

User Controls

Volume, channel UP/DOWN, SEEK. All controls except volume are electronically lockable.

 

Unit can be programmed so that only desired channels are displayed. Squelch can be

 

 

 

Programming

adjusted for sensitivity and signal capture control. Channel selection can be locked by

 

 

holding the SEEK button 5 seconds.

 

 

 

 

 

LCD Display

Indicates channel, RF signal strength, lock status, squelch, battey power level and channel

Indicators

 

programming.

 

 

LED

Red, illuminates when unit is on. Flashes when batteries are low. Flashes when charging.

 

 

Flashes when locked and user attempts to seek to another channel

 

 

 

Battery Type

Two AA batteries, alkaline or NiMH

 

 

 

 

 

Battery Life (Listen batteries)

30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)

 

 

 

 

Power

Battery Charging (NiMH only)

 

Fully automatic, 14 hours

 

 

 

Power Supply Connector

2.3mm OD by 0.7mm ID, barrel type connector. 7.5VDC, center positive <250mA. Drop in

 

 

contact points for use with Listen charging cases.

 

 

 

Compliance

 

UL Listed

 

 

 

 

 

Dimensions

3.0 in x 1.0 in x 5 in WxDxH (7.6cm x 2.5cm x 13.cm)

 

 

 

 

 

Unit Weight

 

3.9oz (111g)

 

 

 

 

Physical

Unit Weight with batteries

 

5.8 oz (164.4g)

 

 

 

Shipping Weight

 

1.0 lbs (453.6kg)

 

 

 

 

 

 

 

Door

Manually lockable. UP, DOWN and SEEK through door, other

 

controls behind door (see Controls above).

 

 

 

Temperature - Operation

 

-10° to 40°C (14° to 104° F)

Environmental

Temperature - Storage

 

-20° to 50°C (-4° to 122° F)

 

Humidity

0 to 95% relative humidity, non-condensing

LR-500 Specifications

7

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Contents User’s Manual Welcome to Listen Receivers Table of Contents This page intentionally left blank LR-500 Programmable Display Receiver Optional Accessories LR-500 Package Contents Listen Part NumberLR-500 Table of Contents Architectural Specifications LR-500 SpecificationsLR-500 Specifications 5mm Input Jack Listen earpiece or headset connects here Quick Reference LR-500 FrontLR-500 Top of Unit Quick Reference LR-500 Inside Access DoorQuick Reference LR-500 Look & Listen Display LR-500 Battery IndicatorOpen the front access door LR-500 Setup InstructionsSelect Battery Type Remove the productPlace Batteries in Unit Set SQ switchTurn the Unit On Connect an Earphone or HeadsetSelect ChannelsLCD display will Set SquelchLR-500 Operation Instructions Adjust the volume control Find an audio transmission using SeekTo Lock into Only One Channel Is the Channel Locked on My Receiver?LR-500Programming Instructions Enter the Program modeLocking Out Unwanted Channels Use the UP and Down keys to select channelsSquelch LR-500 SquelchSquelch Programming Squelch Programming InstructionsLR-500 Charging LR-500 Charging BatteriesLR-500 Charging Batteries LR-500 Wall Transformer Operation This page intentionally left blank User’s Manual LR-400 Package Contents Listen Part Number LR-400 Table of Contents Specification LR-400-072 LR-400-216 LR-400 SpecificationsLR-400 Specifications LR-400 Top of Unit Quick Reference LR-400 FrontBattery Select Switch Quick Reference LR-400 Inside Access DoorQuick Reference LR-400 Look & Listen Display LR-400 Battery IndicatorLR-400 Setup Instructions Set SQ switch See pages 36 and 37 for squelch and programming information Select ChannelsLR-400 Operation Instructions Find an audio transmission using Seek LR-400 Squelch Squelch Programming Instructions LR-400 LR-400 Charging BatteriesLR-400 Charging Batteries LR-400 Wall Transformer Operation User’s Manual LR-300 Package Contents Listen Part Number LR-300 Table of Contents Specifications LR-300 SpecificationsLR-300 Specifications Quick Reference LR-300 Front Quick Reference LR-300 Inside Access Door LR-300 Top of Unit LR-300 Setup Instructions Place Batteries in Unit LR-300 Operation Instructions LR-300 Operation & Squelch LR-300 LR-300 Charging BatteriesLR-300 Charging Batteries LR-300 Wall Transformer Operation Supplementary Information Channel Selection Channel Selection SQ Summary Listen SQRF Reception Maximization Strategies 72MHz Compatibility Chart Narrowband 216MHz Compatibility Chart Compatibility Chart Receiver has no power Receiver Troubleshooting LR-300, LR-400, LR-500There is no audio Audio is distortedCannot pick up the signal on the receiver Receiver TroubleshootingThere is not sufficient range Users keep changing channelsWant to run the unit from a wall transformer My batteries are not chargingCompliance Notice FCC Statement Warranty Optional Accessories Earphone Options Professional Camcorder Cable Optional Accessories Connector OptionsPage
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LR-500, LR-300, LR-400 specifications

Listen Technologies has established itself as a leader in providing innovative audio solutions that enhance communication in various environments. Among their standout products are the LR-400, LR-300, and LR-500, which are designed for assistive listening, language interpretation, and audio distribution. Each of these portable receivers offers unique features, ensuring that users have a seamless experience during presentations, events, and meetings.

The LR-400 is a versatile listening receiver that operates on a wide frequency range. It is specifically engineered for maximum clarity and disturbance-free reception. One of its primary features is the ability to connect directly to a variety of audio sources, making it compatible with numerous sound systems. This device boasts a prominent LCD display, which provides real-time information about channel selection and battery life, enhancing user accessibility. Additionally, the LR-400 supports both mono and stereo audio configurations, catering to different listening preferences and needs.

The LR-300, on the other hand, is specifically built for personal listening purposes, often utilized in classrooms, theaters, and guided tours. It is lightweight and compact, designed for ease of use and portability. One of the LR-300’s standout features is its long battery life, allowing for extended use without the need for frequent recharging. Users can easily adjust the volume for optimal sound levels, ensuring they can fully engage with the presented audio without compromising comfort. The LR-300 can also be equipped with various headphones and earphones, providing flexibility to suit individual preferences.

Finally, the LR-500 expands on the capabilities of its predecessors with advanced technology aimed at improving audiology experiences. It offers a digital communication protocol that significantly enhances audio quality while minimizing interference. The LR-500 is particularly suitable for professional settings, such as conferences and multinational events, where language interpretation is required. With multiple channel options, it allows participants to select their preferred language effortlessly. Its robust design ensures durability, making it suitable for frequent travel and usage in diverse environments.

In conclusion, the LR-400, LR-300, and LR-500 receivers from Listen Technologies exemplify the company's commitment to delivering high-quality audio solutions. Each device is equipped with advanced features and technologies that address specific user needs, whether for personal listening, language interpretation, or professional audio distribution. With their reliability and performance, these receivers enhance communication and accessibility in various settings, ensuring that every voice is heard loud and clear.