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Listen LT800-150 RF Base station Transmitter

The Listen LT800-150 Base station RF Transmitter is the perfect TOUR GUIDE solution where running cables/wires from an audio source to speakers is not the preffered option. The LT800 transmits to the Listen LR & LA receivers.
Product Name: Listen LT800-150 RF Base station Transmitter
Product Code: LT800-150
Brand: Listen
Listen LT800-150 RF Base station Transmitter
RRP AUD $1,499.00
You Save AUD $140.00
Our Price AUD $1,359.00

Listen LT800-150 RF Transmitter


Thanks to its outstanding audio quality, the Listen LT-800-150 Stationary FM Transmitter can be used in a variety of applications. The LT-800-150 is excellent for assistive listening, language interpretation, or other applications where running cable may not be an option. This transmitter is a great choice for interfacing to an existing sound system and broadcasting the desired sound throughout a venue.

The LT-800-150 offers versatility with many different types input connections; line or mic level, balanced, unbalanced. It can be rack mounted with our optional universal rack mount kit or can be placed on a shelf.

The LT-800-150 offers 32 frequencies for easy set up for a clear interference free channel. The end result - the audience can hear and understand the presentation.

NB: for use in Australia

  • Superior Audio Quality - 80 dB signal-to-noise ratio, setting the industry's sound quality standard.
  • With a choice between 32 channels, Listen products are ideal for a wide range of applications.
  • 100 % Digital - Listen receivers are digitally-tuned so transmission won't drift; assurance that when a channel is selected, it stays on that channel.
  • Up to six (6) simultaneous transmitted channels.
  • Look & Listen" LCD shows channel, channel lock, and programming information.
  • Balanced/Unbalanced Inputs - user can interface with any audio source on the market.
  • Designed for installation - rack mountable with optional remote antennas make installation easy and service reliable.
  • Limited Lifetime Warranty .
  • 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.
  • LT-800-150 Stationary FM Transmitter (150 MHz)
  • User Manual
  • LA-207 Power Supply for LT-800
  • Line Cord (-04*)
Architectural Specs

The stationary FM transmitter shall be capable of broadcasting on 32 channels. The transmitter shall have an SNR of 80 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 15 kHz (±3 dB). It shall have two (2) mixing audio inputs and a mixed signal output. 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-800-150 is specified.

At a glance:

1. POWER on/off on front of unit for easy access.
2. Multiple audio inputs, with input level control and dual VU meters.
3. Mix level control sets level of mixed audio. VU meter shows the output level of your mixed audio.
4. Contour equalization cuts/boosts frequencies above 5 kHz.
5. Processing (automatic gain control and compression) can be turned on and off from the front panel.
6. SQ (Super Quiet Companding Technology) can be turned on and off from the front panel.
7. LCD display shows channel selected, channel lockout, programming and RF power.
8. Top mount antenna jack for top mounted telescoping antennas.
9. Earphone jack and volume control to check audio integrity of transmission source.
10. UP/DOWN channel selection of 57 channels. User can easily change between Basic and Expanded modes.
11. The test tone level is adjustable, which adds flexibility when setting up and testing your system.
12. Rear mount and remote antenna BNC connector.
13. Multiple transmitter power settings (full, ½ and ¼) with indication on LCD display.
14. In-line power supply (included) attaches here.
15. Two (2) phono connectors for a mixed output of Inputs 1 and 2.
16. Two (2) unbalanced phono audio inputs. Select either +10 dBu or -10 dBu.
17. Balanced XLR / ¼ inch audio input. Select either mic, line or mic phantom power level for input. Electret (Condenser) microphones can now be used with Input 1 phantom power.
NOTE: For more detailed Line Drawing see LT-800 Datasheet under "Support Info" tab.

Matching Receivers:

The LR800 has been designed to be used with the following Receivers:
    1. LR400-150:

      The LR-400-150 Portable Display FM Receiver is our most popular model of receiver.
      Click here to go to the LR400-150.

    2. LR500-150:

      LR-500-150 Portable Programmable Display FM Receiver (150 MHz)

      The most advanced of Listen's portable receivers, the LR-500-150 Programmable Display Receiver can be programmed so users can only tune to desired channels.
      Click here to go to the LR500-150.

Listen LT800-150 Portable RF Transmitter


AudioRF Frequency Range150.8000 MHz - 152.3500 MHz
Number of Channels6 wideband, 26 narrowband
Number of Simultaneous Transmitters6
Frequency Accuracy± .005% stability 32 to 122º (0 to 50ºC)
Transmitter Stability50 PPM
Transmission RangeUp to 762 m (2500 ft.)
Output Power100 mW
Antenna ConnectorBNC
ComplianceCE, ETSI, RoHS
System Frequency Response50 Hz - 15 kHz (±3 dB)
System Signal to Noise RatioSQ enabled 80 dB, SQ disabled 60 dB
System Distortion<2% total harmonic distortion (THD) at 80% deviation
Audio Input 1Rear 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 ohms (line/mic), phantom power +12 VDC
Audio Input 2Rear panel, two (2) phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable,
+30 dBu maximum, impedance 100k ohms
Audio Processing (Process)Compression can be turned on/off. Slope internally adjustable from 1:1 to 4:1. Default 2:1
ContourCuts 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 ohms
Headphone Output (Monitor)Front panel, one (1) 3.5 mm (0.14 in.) stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 ohms
Controls & IndicatorsFront PanelPower, Test Tone on/off, Channel up/down, Input Levels, Mix Level, Contour, Monitor volume control
Rear PanelInput 1 Level, (Line, Mic, Mic-Phantom Power), Input 2 level (-10 / +10 dBu),
RF power level (low, mid, high)
Internal AdjustmentsCompression ratio for audio processor
ProgrammingProcess on/off, SQ on/off, channel lock
Input1, Input 2, Mix Level VUIndicates Input 1, Input 2, and Mix audio levels; 10 segment LED's (8 green, 2 red)
ProcessingIndicated by a green LED when on (front panel)
RF PowerIndicated on the LCD (low, mid, high)
LCD DisplayChannel Designation, lock status, RF power level, programming (front panel)
Test ToneRed LED illuminates when test tone is enabled.
PowerPower SupplyIn line power supply (Listen part number LA-207)
Power Supply InputInput: 100-240 VAC, 50-60 Hz, 0.4 A
Power Supply OutputOutput: 12 VDC, 1.3 A, 15.6 W
Power Supply ConnectorOutput Connector: 0.02 in (5.0 mm) OD, 0.01 in. (2.5 mm) ID, barrel type
Power Supply ComplianceUL, CE, GS, TÜV, RoHS
PhysicalDimensions (H x W x D)1.75 x 8.50 x 9.13 in (4.5 x 21.5 x 23 cm)
ColorDark Grey with white silk screening
Unit Weight2.6 lbs. (1.2 kg)
Unit Weight with LA-207-03 Power Supply3.5 lbs. (1.6 kg)
Shipping Weight6 lbs. (2.7 kg)
Rack MountingOne (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)
EnvironmentalTemperature - Operation -10 ºC (14 ºF) to +40 ºC (104 ºF)
Temperature - Storage -20 ºC (-4 ºF) to +50 ºC (122 ºF)
Humidity0 to 95% relative humidity, non condensing
Specifications are subject to change without notification