Listen Technologies LT-82-01 Stationary IR Transmitter

As the core of the ListenIR system, the LT-82 sends power and audio signal to one or more LA-140 IR (infrared) radiator/emitter units over Cat5 cable. The LT-82 can operate in mono or stereo modes and units can be combined to offer up to 4 channels of audio, leaving you flexible and ready for expansion when it's needed.

Ideal for Theaters, House Of Worship, Language Interpretation and more, put the LT-82 at the heart or your IR system.

Includes

• 1 LT-82 ListenIR 1-Channel Transmitter
• 1 LA-205 30 VDC Extension/Replacement Power Supply for LA-140/LT-82
• 1 LA-89 Interconnection Coaxial Cable
• 1 Quick Reference Card

Features

• Expandable and affordable transmitter unit for infrared assistive listening systems
• Provides DC power for up to two (2) LA-140 radiator/emitter units via standard CAT-5 cabling
• Audio signal is provided to the LA-140 radiator/emitter units via RG-58 coaxial cable
• Transmits up to four (4) channels of mono or stereo audio (one channel per LT-82 unit)
• Crystal-clear and secure audio performance for venues, houses of worship, meetings, conference rooms, and more

Specifications

• Frequency Response
  • 63 Hz - 15 kHz (+/- 3 dB)
• Signal-to-Noise Ratio
  • Mono: > 60 dBStereo: > 52 dB
• System Distortion
  • < 2% total harmonic distortion (THD)
• Audio Input 1
  • Mono Input (Rear Panel). Female-XLR and 1/4 in. combo connector, balanced, 0/-55 dBu (line/mic) nominal input level adjustable; +21/-30 dBu (line/mic) maximum input level; impedance 20k/1k ohms (line/mic); phantom power +12 VDC
• Audio Input 2
  • Stereo or Mono Input (Rear Panel). Two (2) Phono connectors, unbalanced, -10/+10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k
• Audio Processing
  • Compression can be turned on/off.
• Contour
  • Cuts and boosts frequencies above 5 kHz
• Monitor Output
  • Front panel. One (1) 3.5 mm (0.14 in.) connector, unbalanced, adjustable output level, +7 dBu maximum, impedance 10 ohms. 100 mW, 32 ohms
• Output/s
  • Input 1 and Input 2 Mixed Output (Rear panel). Two (2) Phono connectors, unbalanced, -10 dBu nominal output level, +19 dBu maximum, impedance 10 ohms
• Controls
  • Programming
  • Stereo on/off, Processing on/off
• 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
• Indicators
  • LCD
  • Channel designation, lock status, RF Carrier, programming (front panel)
  • 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 LED's (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)
• Test Tone
  • Red LED illuminates when test tone enabled (front panel)
• RF
• Input/s
  • One (1) BNC connector, for connection from additional transmitter(s). 50 mV, 50 ohm, -15 dBm
• Output/s
  • Two (2) BNC connectors, for connection to radiator(s) and/or additional transmitter(s). 50 mV, 50 ohm, -15 dBm
• Carrier Frequencies
  • 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz
• Number of Channels
  • Four (4) channels. Selectable one (1) channel per transmitter (mono or stereo)
• Frequency Accuracy
  • +/- .005% stability 0 to 50 °C
• Carrier Shut Off
  • Carrier will shut off when no audio is present for 30 minutes to preserve radiator life.
• Transmitter Stability
  • 50 PPM
• Power Supply
  • In-line switching mode power supply, Listen part number LA-205
• Power Supply Input
  • 100-240 VAC, 47-63 Hz
• Power Supply Output
  • 30 VDC, 1.5 A
• Power Supply Connector
  • RJ-45
• Power Output
  • Two (2) RJ-45 jacks. For remote powering up to two (2) radiators
• Width
  • 8.50 in. (21.5 cm)
• Height
  • 1.75 in. (4.5 cm)
• Depth
  • 9.13 in. (23 cm)
• Color
  • Dark Grey
• Unit Weight with Power Supply
  • 3.8 lbs. (1.72 kg)
• Shipping Weight
  • 6.0 lbs. (2.7 kg)
• Rack Mounting
  • One (1) rack space high (1U), 1/2 rack space wide. One (1) or two (2) transmitters can be mounted in a single rack space. Optional Rack mount (LA-326) not included.
• Weight
  • 2.6 lbs. (1.18 kg)
• Power Line Cord
  • North America, Type B, (LT-82-01)Asia, UK, Type G, (LT-82-02)Euro Type J, (LT-82-03)
• Temperature - Operation
  • 14 °F (-10 °C) to +104 °F (40 °C)
• Temperature - Storage
  • -4 °F (-20 °C) to +122 °F (50 °C)
• Relative Humidity
  • 0 to 95% relative humidity, non-condensing