Listen Technologies ListenIR LT-82 1-Channel Transmitter(Listen Technologies Listenir Lt 82 1 Channel Transmitter)

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.

Listen Technologies ListenIR LT-82 1-Channel Transmitter

Audio
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/Indicators
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)

RF System
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 122�F / 0 to 50�C
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
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)

General
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

Packaging Info
Package Weight	4.7 lb
Box Dimensions (LxWxH)	14.3 x 10.9 x 3.1″