Listen Technologies LR-44, LR-42, LA-351, LA-350, LT-82LA manual 6SHFLÀFDWLRQV

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7KH6WDWLRQDU\,57UDQVPLWWHUVKDOOEHFDSDEOHRIEURDGFDVWLQJRQIRXUPRQRRUVWHUHRFDUULHUVDQG0+]&KDQQHO selection shall be capable of being locked. Multiple transmitters shall be capable of being daisy-chained together to transmit up to four channels simultaneously. The transmitter shall have a timer that shuts off the carriers after 30 minutes when no audio is present at the transmitter. The transmitter shall have a SNR of 60 db or better. The device shall have an audio frequency response of 63 Hz to 15 kHz, +/- 3db. It shall have two mixing audio inputs, one balanced XLR/phone input and one unbalanced RCA input. The device shall

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	Specification	LT-82
	Carrier Frequencies	Selectable: 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz
	Number of Channels	Four channels. Selectable one channel per transmitter (mono or stereo)
	Carrier Shut Off0	Carrier will shut off when no audio is present for 30 minutes to preserve radiator life.
	Frequency Accuracy	+/- .005% stability 0 to 50C
RF	Transmitter Stability	50 PPM
	RF Output	(Two (2) BNC connectors, for connection to radiator(s) and/or additional transmitter(s).
		50 mV, 50 ohm, -15 dBm
	RF Input	One (1) BNC connector, for connection from additional transmitter(s).
		50 mV, 50 ohm, -15 dBm
	Compliance	FCC Part 15, Industry Canada, CE, RoHS
	** All system specifications are wireless end-to-end
	System Frequency Response	63Hz - 15kHz (+/- 3dB)
	System Signal to Noise Ratio (A-weighted)	Mono: >60dB
		Stereo: >52dB
	System Distortion	<2% total harmonic distortion (THD)
		Mono Input (Rear Panel). Female-XLR and 1/4 in combo connector, balanced, 0/-
	Audio Input 1	55dBu (line/mic) nominal input level adjustable; -30/+21dBu (mic/line) maximum
Audio		input level; impedance 20k/1k ohms (line/mic); phantom power +12VDC
	Audio Input 2	Stereo or Mono Input (Rear Panel). (Two) Phono connectors, unbalanced, -10/+10dBu
		nominal input level adjustable, +30dBu maximum, impedance 100k ohms
	Audio Processing	Compression can be turned on/off. Slope adjustable from 1:1 to 4:1. Default 2:1
	Contour	Cuts and boosts frequencies above 5 kHz
	Combined Audio Output (Mix)	Input 1 and Input 2 Mixed Output (Rear panel). Two (2) Phono connectors, unbal-
		anced, -10dBu nominal output level, +19dBu maximum, impedance 10 ohms.
	Headphone Output (Monitor)	Front panel. (One) 3.5mm connector, unbalanced, adjustable output level, +7dBu
		maximum, impedance 10 ohms. 100mW, 32 ohms, 3.5mm stereo.
	Front Panel	Power, Test Tone on/off, Channel up/down, Input Level, Transmit Level, Contour,
		Headset Level
Controls	Rear Panel	Input 1 Level (Line, Mic, Mic-Phantom Power), Input 2 Level (-10/+10 dBu)
	Internal Adjustments	Compression ratio for audio processor
	Programming	Stereo on/off, Processing on/off
	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)
Indicators	Processing	Indicated by a green LED when on (front panel)
	RF Carrier	Indicates carrier is active on the LCD Display (front panel)
	LCD Display	Channel designation, lock status, RF Carrier, programming (front panel)
	Test Tone	Red LED illuminates when test tone enabled (front panel)

LT-LTDesign-8282Guide

Power

Power Supply

Power Output:

Power Line Cord

In-line switching mode power supply, Listen part number LA-205

Input: 100-240 VAC, 47-63 hz

Output: 30 VDC, 1.5 A

Output Connector: RJ-45

Compliance: UL and CE Listed

Two (2) RJ-45 jacks. For remote powering up to 2 radiators.

North America, Type B, (LT-82-01)

Asia, UK, Type G, (LT-82-02)

Euro type J, (LA-82-03)

	Dimensions (H x W x D)		1.75 x 8.50 x 9.13 in. (4.5 x 21.5 x 23 cm)
	Color		Grey with White Silk Screening
	Unit Weight		2.6 lbs. (5.7 kg)
Physical	Unit Weight with LA-205 Power Supply		3.8 lbs. (8.3 kg)
	Shipping Weight		4.4 lbs. (9.7 kg)
	Rack Mounting		One rack space height, 1/2 rack space wide. One or two transmitters can be mounted
			in one rack space. Optional rack mount (LA-326) not included.
Environ-	Temperature - Operation		-10 C (14 F) to +40 (104 F)
	Temperature - Storage		-20 C (-4 F) to +50 (122 F)
mental
	Humidity		0 to 95% relative humidity, non-condensing
	•Specifications	are subject to change without notification.

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