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User Manual for Listen Technologies ListenIR LT-82 1-Channel Transmitter Click to enlarge the picture
Contents of the user manual for the Listen Technologies ListenIR LT-82 1-Channel Transmitter
- Product category: Components & Accessories Listen Technologies
- Brand: Listen Technologies
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Listen Technologies Components & Accessories
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User manual for the Listen Technologies ListenIR LT-82 1-Channel Transmitter contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Listen Technologies product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Listen Technologies user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Listen Technologies product will considerably shorten its lifespan!
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Product description This LT-82 1-Channel Transmitter from Listen Technologies takes the desired audio signal and transmits the signal via coaxial cable to one or more LA-140 IR radiator-emitters. The LT-82 can be operated in mono or stereo on one of four different carriers, and up to four LT-82 units may be connected to provide up to four mono or stereo carriers to the radiator(s). The LT-82 generates DC power to power up to two LA-140 radiator-emitters. Two LT-82 units can be rack-mounted in a single rack space using the LA-326 rack mounting kit. The LT-82 may be used for government compliance (such as ADA), assistive listening, language interpretation, live theater, houses of worship, courtrooms, secure rooms, and for auditory description. - Secure wireless communication, suitable for applications where isolation of the signal is important
- Up to four mono or stereo channels; no need to sacrifice multiple channels to achieve stereo transmissions (one LT-82 is required for each channel)
- Transmitter can power two radiators/emitters (LA-140), using Cat5 cabling
- Easy to specify, install, and use
- Performance ensures clear sound for listeners
- True stereo audio (left and right) is transmitted on a single carrier frequency
UPC: 819267023321 In the Box Listen Technologies ListenIR LT-82 1-Channel Transmitter 30 VDC Power Adapter for LA-140/LT-82 Interconnection Coaxial Cable Limited 5-Year Warranty Table of Contents
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Technical parametersListen Technologies LT-82-01 Specs | | | Frequency Response | 63 Hz to 15 kHz (+/- 3 dB) | | Signal to Noise Ratio (SNR) | Mono: >60 dB
Stereo: >52 dB | | System Distortion | <2% total harmonic distortion (THD) | | Input | Input 1: 1x Female XLR or 1/4" combo connector, balanced, 0 / -55 dBu (line/mic) nominal input level adjustable, -30 / +21 dBu (line/mic) maximum input level, impedance 20 k / 1 kOhm (line/mic), phantom power 12 V DC - on rear panel
Input 2: 2x phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k ohm - on rear panel
| | Output | Input 1, Input 2, mixed output on rear panel: 2x Phono connectors, unbalanced, -10 dBu nominal output level, +19 d Bu maximum, impedance 10 ohms | | Audio Processing | Compression can be turned on or off | | | | Controls | Front Panel: Power, Test Tone on/off, Channel up/down, Input Level, Transmit Level, Contour, Monitor Level
Rear Panel: Input 1 Level (Line, Mic, Mic-Phantom Power), Input 2 Level (-10/+10 dBu)
Internal Adjustments: Compression ratio for audio processor. Slope adjustable from 1:1 to 4:1. Default 2:1
Programming: Stereo on/off, Processing on/off
| | Indicators | Unit Power: Red LED illuminates when the unit is powered up (front panel)
Input 1, Input 2, Transmit Level: indicates Input 1, Input 2, and Transmit audio levels. 10 segment LEDs (8 green, 2 red)
Stereo: Indicated by a green LED when on (front panel)
Processing: Indicated by a green LED when on (front panel)
RF Carrier: Indicates carrier is active on the LCD Display (front panel)
LCD: Channel designation, lock status, RF Carrier, programming (front panel)
Test Tone: Red LED illuminates when test tone enabled (front panel)
| | | | Audio Carrier Frequencies | 2.3 MHz
2.8 MHz
3.3 MHz
3.8 MHz
| | Number of Channels | 4 Channels, selectable one channel per transmitter (mono or stereo) | | Frequency Accuracy | +/- 0.005% stability 32 to 122ºF / 0 to 50ºC | | Transmitter | Transmitter stability: 50 PPM
| | Outputs | 2x BNC connectors for connection to radiator(s) and/or additional transmitter(s); 50 mV, 50 ohm, -15 dBm | | Inputs | 1x BNC connector, for connection from additional transmitter(s); 50 mV, 50 ohm, -15 dBm | | | | Power Supply | In-line power supply, (part number LA-205) | | Power Supply Input | 100 to 240 V AC, 47 to 63 Hz | | Power Supply Output | 30 V DC, 1.5 A | | Power Supply Connector | 1x RJ-45 | | Power Output | 2x RJ-45 jack, for remote-powering up to two radiators | | Power Cord | North America: Type B (LT-82-01)
Asia, UK: Type G (LT-82-02)
Europe: Type J (LT-82-03)
| | | | Color | Dark gray | | Rack Mount | 1U high, 1/2U space wide
One or two transmitters can be mounted in a single rack space. | | Environmental | Operation Temperature: 14 to 104°F / -10 to 40°C
Storage Temperature: -4 to 122°F / -20 to 50°C
Relative Humidity: 0 to 95% relative humidity, non-condensing
| | Compliance | FCC Part 15, Industry Canada, CE, RoHS, UL | | Dimensions | 1.75 x 8.5 x 9.13" / 4.5 x 21.5 x 23.0 cm | | Weight | With Power Supply: 3.8 lb / 1.72 kg
Unit Weight: 2.6 lb / 1.18 kg | | | | Package Weight | 4.7 lb | | Box Dimensions (LxWxH) | 14.3 x 10.9 x 3.1" |
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