Listen Technologies LR-500, LR-400 manual LR-300 Operation Instructions

Page 45

LR-300 Operation Instructions

1Make Sure the Unit is On

Rotate the volume knob counterclockwise with an earphone or headset connected to the unit. Listen receivers use the cable of the earphone or headset as a receiving antenna.

Be careful when turning the unit on - if you turn the knob too far you might get too much volume in your earphone!

2Test the audio

If a transmitter is broadcasting on that channel, you will be able to hear the audio. If the signal is too weak, the audio will be muted (squelched).

3

Find an audio transmission using SEEK

Another way to find a channel on the LR-300 is to use the SEEK button. When you do this, the Listen

 

 

receiver looks for the next active channel. Sometimes the unit will mistake interference for a real

 

broadcast signal. If you get interference, press the SEEK button again. The unit may stop on a

 

channel that is close to the actual broadcast channel, in which case the channel will sound noisy

 

or distorted. Simply press SEEK again until you find the clearest operating channel.

4 Adjust the volume control

Use the control dial on the top of the unit to adjust the volume to a comfortable level.

Volume Control Dial

5

To Lock into Only One Channel

Press and hold the SEEK button for 5 seconds to lock a receiver onto the currently tuned

 

 

channel. Press and hold the button again to unlock. When locked the LED on top of the unit

 

will flash when you press the SEEK button.

 

IMPORTANT: Because the LR-300 has no LCD display, it is important to recognize when the unit

 

is locked on a channel. If the unit sounds distorted or there is no audio heard and

 

pressing the seek button does not correct the problem, the unit is probably locked

 

on the wrong channel. Press and hold the seek button for 5 seconds to unlock.

If locked, LED flashes on all portable receivers when SEEK button is pressed

LR-300

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Contents Page Page Page Page Receivers Table of Contents Page Page Page LR-500 Table of Contents LR-500 Package Contents Architectural Specifications LR-500 SpecificationsLR-500 Quick Reference Battery CompartmentRemove the product LR-500 Setup InstructionsSelect Channels Make Sure the Unit is On LR-500 Operation InstructionsTo Lock into Only One Channel Locking Out Unwanted Channels LR-500 Programming InstructionsSquelch Programming Instructions LR-500 SquelchLR-500 Charging Batteries LR-500 Wall Transformer Operation Page Page Page Page LR-400 Table of Contents LR-400 Package Contents Specification LR-400-072 LR-400-216 LR-400 SpecificationsLR-400 Quick Reference LR-400 Setup Instructions See page 29 for squelch and programming information LR-400 Operation Instructions To Lock into Only One Channel LR-400 Squelch LR-400 Charging Batteries LR-400 Wall Transformer Operation Page Page Page LR-300 Table of Contents LR-300 Package Contents Specification LR-300-072 LR-300 SpecificationsLR-300 Quick Reference LR-300 Setup Instructions Red LED will illuminate when on Earphone/Headset jack LR-300 Operation Instructions LR-300 Charging Batteries LR-300 Wall Transformer Operation Channel Selection SQ Summary Listen SQRF Reception Maximization Strategies Comtek Williams Gentner Telex Drake MHz Compatibility ChartCSI AVR Troubleshooting Troubleshooting LR-300, LR-400, LR-500 ReceiversUsers keep changing channels TroubleshootingCompliance Notice Compliance Notice and FCC StatementWarranty Warranty & Contacting ListenEarphone Options Optional AccessoriesPage
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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.
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