Stationary 3-Channel FM Transmitter LT-803-072

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Stationary 3-Channel FM Transmitter

Stationary 3-Channel FM Transmitter
LT-803-072

Highlights

Economical price – backed by Listen’s exceptional service and support.
Three (3) channels – makes it simple to install, manage and use.
100 % Digital – Listen transmitters are digitally-tuned so the transmission won’t drift.
Limited Lifetime Warranty.
Look & Listen™ LCD shows channel, channel lock, and signal strength.
Reliable clear sound quality - 62 dB Signal-to-noise ratio (SNR).
Balanced/Unbalanced Inputs – you can interface with any audio source on the market.
Designed for installation – rack mountable with optional remote antennas and rack mount kit make installation easy and service reliable.
Auto Processor – to condition the audio for voice/music prior to transmission.
VU level meter and test tone – simply makes the installation easier to set-up.
30-day no obligation demonstrations available.
Many accessory options make Listen products ideal for a wide range of applications.

Overview

The LT-803-072 Stationary 3-Channel FM Transmitter can be used for assistive listening in a variety of venues. The transmitter offers universal inputs ensuring your ability to interface with any audio source i.e. mixer, microphone, IPod, or CD. The signature Look & Listen LCD shows channel, lock, and RF power. The LT-803-072 comes with a power supply (LA-207).

Includes

LT-803-072 Stationary 3-Channel FM Transmitter (72 MHz)

Power Supply

Quick Reference Card

Limited Lifetime Warranty Program Card

Configurations

LT-803-072-01 Stationary 3-Channel FM Transmitter (72 MHz) (North America)*
LT-803-072-02 Stationary 3-Channel FM Transmitter (72 MHz) (Asia, UK)*
LT-803-072-03 Stationary 3-Channel FM Transmitter (72 MHz) (Euro)*

Architectural Specs

The stationary FM transmitter shall be capable of broadcasting on one of any three channels – A (72.100 MHz), E (72.900 MHz) or H (75.900 MHz). The transmitter shall have a SNR of 62 dB or greater. The output power shall be adjustable to quarter, half or full. Channel tuning shall be capable of being locked. The device shall have an audio frequency response of 50 Hz to 15k Hz, ± 3 dB at 72 MHz. It shall have two (2) mixing audio inputs. The device shall have the following audio controls: input level, mix level and an adjustable low pass filter (contour). The device shall have an audio processor that is capable of automatic gain control and limiting. The Listen LT-803-072 is specified

CAD Drawing

CAD FILES: LT-803 Stationary 3-Channel FM Transmitter

Line Drawing

Specifications

	Specifications	LT-803-072
RF	RF Frequency Range	(A) 72.100, (E) 72.900, (H) 75.900
	Number of Channels	3 wide band
	Frequency Accuracy	± .005% stability 32 to 122º (0 to 50ºC)
	Transmitter Stability	50 PPM
	Transmission Range	Up to 1,500 ft. (457.20 m)
	Output Power	80,000 uV at 3 m
	Antenna	Various antennas available
	Antenna Connector	BNC
	Compliance	FCC Part 15, Part 90, Industry Canada

Audio	All system specifications are wireless end to end
	System Frequency Response	50 Hz - 15 kHz (±3 dB)
	System Signal to Noise Ratio	62 dB (A-Weighted)
	System Distortion	<2% total harmonic distortion (THD) at 80% deviation
	Audio Input 1	Rear panel, one (1) Female XLR and 1/4 in combo connector, balanced, 0 / -55 dBu (line/mic) nominal input level adjustable, -30 / +21 dBu (line/mic) maximum input level, impedance 20k / 1k ohm (line/mic), phantom power +12 VDC
	Audio Input 2	Rear panel, two (2) phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100k ohm
	Audio Processing (Process)	Compression can be turned on/off. Slope internally 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, unbalanced, -10 dBu nominal output level, +15 dBu maximum, impedance 10 ohm
	Headphone Output (Monitor)	Front panel, one (1) 3.5 mm (0.14 in.) stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 ohm

Controls	Front Panel	Power, Test Tone on/off, Channel up/down, Input Levels, Mix Level, Contour, Monitor volume control
	Rear Panel	Input 1 Level, (Line, Mic, Mic-Phantom Power), Input 2 level (-10 / +10 dBu), RF power level (low, mid, high)
	Internal Adjustments	Compression ratio for audio processor
	Programming	Process on/off, channel lock

Indicators	Input1, Input 2, Mix Level VU	Indicates Input 1, Input 2, and Mix audio levels; 10 segment LED's (8 green, 2 red)
	Processing	Indicated by a green LED when on (front panel)
	RF Power	Indicated on the LCD (low, mid, high)
	LCD Display	Channel Designation, lock status, RF power level (front panel)
	Test Tone	Red LED illuminates when test tone is enabled.

Power	Power Supply	In line power supply, Listen part number LA-207 (Line cord is determined by the each Country's AC power standards)
	Power Supply Input	Input: 100-240 VAC, 50-60 Hz, 0.4 A
	Power Supply Output	Output: 12 VDC, 1.3 A, 15.6 W
	Power Supply Connector	Output Connector: 0.02 in (5.0 mm) OD, 0.01 in. (2.5 mm) ID, barrel type
	Power Supply Compliance	UL, CE, GS, TÜV, RoHS

Physical	Dimensions (H x W x D)	1.75 x 8.50 x 9.13 in (4.5 x 21.5 x 23 cm)
	Color	Dark Grey with white silk screening
	Unit Weight	2.6 lbs. (1.2 kg)
	Unit Weight with LA-207-03 Power Supply	4.5 lbs. (2.0 kg)
	Shipping Weight	6.0 lbs. (2.7 kg)
	Rack Mounting	One (1) rack space height, 1/2 rack space wide. One (1) or two (2) transmitters can be mounted in one rack space,optional rack mount (LA-326)

Environmental	Temperature - Operation	-10 ºC (14 ºF) to +40 ºC (104 ºF)
	Temperature - Storage	-20 ºC (-4 ºF) to +50 ºC (122 ºF)
	Humidity	0 to 95% relative humidity, non condensing

Specifications are subject to change without notification

Requirements

LA-123 90° Helical Antenna (72 MHz)

Mounts on the rear BNC antenna connector of 72 MHz versions of theLT-800 transmitter, LR-100 receiver/amplifier, or LR-600 receiver/speaker.
LA-116 Coaxial Dipole Remote Antenna (72 MHz)

Flexible dipole antenna for permanent installation.
LA-101 Helical Top Mounted Antenna (72 MHz)

Easy to install, top mounted, helical antenna for use with the LT-800-072 transmitter.
LA-122 Universal Antenna Kit (72 and 216 MHz)

A single solution for all your remote antenna needs.
LA-106 Telescoping Top Mounted Antenna (72 MHz)

Easy to install, top mounted, telescoping antenna for use with the LT-800-072 Stationary FM Transmitter (72 MHz).

Used With

LR-100-072/216 Stationary FM Receiver/Power Amplifier (72 or 216 MHz)

Listen's Stationary Receiver/Power Amplifier is a stationary auditory assistance receiver with a built-in power amplifier.
LR-400-072/216 Portable Display FM Receiver (72 or 216 MHz)

The Portable Display FM Receiver is a lower cost digital display receiver.

Note: for use in Norh America using either the 72 MHz or 216 MHz frequency band
LR-600-072/216 Wireless FM Receiver/Speaker (72 or 216 MHz) (Discontinued)

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LR-300 Portable Digital FM Receiver (72 MHz)

The Portable Digital FM Receiver is a low cost digital receiver.
LR-200-072 Standard 3-Channel FM Receiver (72 MHz)

The Standard 3-Channel FM Receiver (72 MHz) offers is a solution for assistive listening where simplicity and cost are important.
LR-500-072/216 Portable Programmable Display FM Receiver (72 or 216 MHz)

One of Listen's most sophisticated receivers, the LR-500 Programmable Display Receiver offers the signature Look&Listen^TM LCD Display that shows programming status, channel, lock, battery level, and RF signal strength.

Note: for use in Norh America using either the 72 MHz or 216 MHz frequency band

Accessories

LA-127 RG-58 BNC Connector

BNC connector used for the LA-112 RG-58 Coaxial Cable (Crimp style).
LA-123 90° Helical Antenna (72 MHz)

Mounts on the rear BNC antenna connector of 72 MHz versions of theLT-800 transmitter, LR-100 receiver/amplifier, or LR-600 receiver/speaker.
LA-116 Coaxial Dipole Remote Antenna (72 MHz)

Flexible dipole antenna for permanent installation.
LA-113 RG-8 50 Ohm Low-Loss Coaxial Cable (Per ft.)

RG-8 50 Ohm Coaxial Cable is measured and cut per foot. It is best used when more distance is needed for the antennas to have better coverage.
LA-80 2-Way RF Antenna Combiner

A passive device (no power supply needed) that takes two (2) incoming RF signals and combines them into one (1) outgoing antenna source.
LA-106 Telescoping Top Mounted Antenna (72 MHz)

Easy to install, top mounted, telescoping antenna for use with the LT-800-072 Stationary FM Transmitter (72 MHz).
LA-82 6-Way RF Antenna Combiner

A passive device (no power supply needed) that takes six (6) incoming RF signals and combines them into one (1) outgoing antenna source.
LA-101 Helical Top Mounted Antenna (72 MHz)

Easy to install, top mounted, helical antenna for use with the LT-800-072 transmitter.
LA-391 RG-58 50 Ohm Preassembled Coaxial Cable (Per ft.)

Gives the right amount of cable for your FM/IR predesigned system.
LA-304 Assistive Listening Notification Signage Kit

An important part of the American’s with Disabilities Act compliance policy is signage to identify the availability of auditory assistance equipment. Listen provides a simple kit to meet these needs.
LA-128 RG-8 BNC Connector

BNC connector used for the LA-113 RG-8 Coaxial Cable (Crimp style).
LA-125 Antenna Kit for Rack Mount (72 MHz)

This antenna kit is used with the LA-326 Rack Mount Kit.
LA-122 Universal Antenna Kit (72 and 216 MHz)

A single solution for all your remote antenna needs.
LA-115 BNC Coupler

Female to female BNC coupler is designed to connect two (2) coaxial cables together.
LA-112 RG-58 50 Ohm Coaxial Cable (Per ft.)

RG-58 50 Ohm Coaxial Cable is used when more distance is needed for the antennas to have better coverage.
LA-81 4-Way RF Antenna Combiner

A passive device (no power supply needed) that takes four (4) incoming RF signals and combines them into one (1) outgoing antenna source.
LA-102 Telescoping Top Mounted Antenna (216 MHz)

Easy to install, top mounted, telescoping antenna for use with the LT-800-216 Stationary FM Transmitter (216 MHz).
LA-390 RG-8 50 Ohm Preassembled Coaxial Cable (Per ft.)

Gives the right amount of cable for your FM/IR predesigned system.
LA-326 Universal Rack Mounting Kit

This kit is for mounting Listen's Stationary FM and IR Transmitters or the LR-100 Stationary Receiver/Amplifier.
LA-207 12 VDC Replacement Power Supply for LT-800

The power supply is used to power the LT-800 Stationary Transmitter.

Support Documents

DATA SHEET: LT-803-072 Stationary 3-Channel FM Transmitter

FLYER: LP-3CV Value Package

MANUAL: LP-3CV Value Package

FAQ

What is the range of the LT-803-072 transmitter?

Line of site up to 1,500 ft. (457.20 m) with remote antenna.

Does the LT-803-072 include the rack mount?
No, but an LA-326 Universal Rack Mounting Kit is available for purchase. Antenna options for rack mounting also available.

Do I need a transmitter for each audio source?
Yes.

Is there a limit to the number of LT-803-072 transmitters I can use in one room?
Yes. The maximum is three.

How many receivers can I have on a system?
As many as you need, the number is endless.

What is the warranty of Listen transmitters?

Limited lifetime warranty. The following cases will void the warranty:

Misuse, dropping, or any other noticeable cosmetic damage.

Is the LT-803-072 compatible with Listen’s other receivers (LR-300-072, LR-400-072, LR-500-072, LR-100-072, and LR-600-072)?

Yes. Remember, the LT-803-072 has only three (3) channels (A, E, H) therefore the receiver will need to be tuned to one of those channels. Also, the SQ (Super Quiet) function must be turned off on the receiver.