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Listen stationary ir system – Listen Technologies Stationary IR LT-82 User Manual

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• Simple to specify, install, maintain, and use.
• Secure – the signal will not leave the room.
• Up to four simultaneous mono or stereo channels allows for expanded applications.
• Uses higher modulation (2.3 to 3.8MHz) frequencies thereby decreasing the risk of

light interference from fl uorescent lights and other sources.

• Installation is simple using CAT-5 cables for power distribution.
• The radiator mounting hardware is included with each radiator.
• Users will enjoy the simple but refi ned look and feel of both the stetho and
lanyard receivers.
• Advanced battery management ensures long battery life.
• Uses standard AAA alkaline batteries or an optional rechargeable pack (LA-364).
• Compatible with other manufacturers.
• Limited lifetime warranty (radiator – 3 years and accessories 90 days).

Highlights

Listen Stationary IR System

There are three main components involved in the Listen Stationary IR system:

Transmitter(s)

The LT-82 Stationary IR Transmitter accepts audio
from an audio mixing console or other sources. It then
turns this audio signal into an RF signal and delivers it
to an LA-140 radiator via coaxial cable. The LT-82 also
provides DC power for up to two LA-140 radiators via
standard CAT-5 cabling. For a single channel system
(mono or stereo) use one LT-82. Add more channels
(up to 4 total) by adding more LT-82 units.

Radiator(s)/Emitter(s)

The radiator transforms the RF audio signal from the LT-82
transmitters into an IR signal. This is essentially a
“headlight” that illuminates the room with non-visible IR
light. The size and shape of the room will determine how
many radiators or “headlights” you’ll need to fi ll the room
for adequate signal coverage. It’s powered by either the
LT-82 transmitter or an LA-205 extension/replacement
power supply. Hardware for most types of mounting
confi gurations, comes standard with each radiator, and
the radiator is available in two colors; grey or white.

Receiver(s)

The IR light from the radiators is detected by
the receivers and turned into sound. Listen
off ers the LR-42 stethoscope and LR-44
lanyard style receivers. The stethoscope is an
“all-in-one” unit, making it easy to keep track of
checked out equipment. The lanyard receiver
accepts any style of 3.5 mm earphone, giving
users more choices.

2

Two cables connect the LT-82 Transmitter to the
radiator(s). CAT-5 cable is used for power, and coaxial
cable is used for the signal. When more than one
radiator is needed, they can be daisy-chained using
the same type of cable. One LT-82 can power up to two
radiators.