The Stationary 3-Channel RF Transmitter (72 MHz) offers an affordable solution for assistive listening systems, allowing businesses to broadcast on one of three channels.
$599.00
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The Stationary 3-Channel RF Transmitter (72 MHz) is designed for businesses or venues seeking a budget-conscious solution for assistive listening. This transmitter, model LT-803-072, allows users to broadcast on any one of three available channels, making it versatile for different environments.
With universal inputs, it accommodates nearly any audio source, including mixers, microphones, MP3 players, and more. The signature Look & Listen™ LCD display provides immediate access to channel information, lock status, and RF power levels, enhancing usability.
The LT-803-072 includes a power supply, simplifying the setup process so users can start utilizing it right away. This transmitter ensures solid, reliable audio transmission with its 100% digital technology, making it a feature-packed option for basic assistive listening systems.
A 30-day, no-obligation demonstration is available for your venue, allowing you to experience its capabilities firsthand. Additionally, it is compatible with a wide range of Listen Technologies accessories.
Quick Start Guides:
Tech Notes:
Audio
| Frequency Response | 50 Hz – 15 kHz (±3 dB) |
| Signal-to-Noise Ratio | 62 dB (A-Weighted) |
| 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 | 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 |
| Distortion | < 2% total harmonic distortion (THD) at 80% deviation |
| Audio Output | 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 | Front panel, one (1) 3.5 mm (0.14 in.) stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 ohm |
Controls
| User Controls | Front Panel: Power, Test Tone on/off, Channel up/down, Input Levels, Mix Level, Contour, Monitor volume controlRear 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
| LCD | Channel Designation, lock status, RF power level (front panel) |
| Audio Input Status LEDs | 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) |
| Test Tone | Red LED illuminates when test tone is enabled |
| RF Power | Indicated on the LCD (low, mid, high) |
RF
| Frequency Range | (A) 72.100, (E) 72.900, (H) 75.900 (One of three available channels) |
| Number of Channels | 3 wide band (One of the three available channels) |
| Frequency Accuracy | ± .005% stability 0 to 50ºC (32 to 122º) |
| Antenna Type | Various antennas available |
| Transmitter Stability | 50 PPM |
| Transmission Range | Up to 305 m (1,000 ft.) |
| Antenna Connector | BNC, 50 Ohms (Use RG-58 < 100 ft or RG-8 > 100ft) |
| Output Power | 80,000 uV at 3 m |
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 | 100-240 VAC, 50-60 Hz, 0.4 A |
| Power Supply Output | 12 VDC, 1.3 A, 15.6 W |
| Power Supply Connector | 5.0 mm (0.02 in.) OD, 2.5 mm (0.01 in.) ID, barrel type |
| Compliance | UL, CE, GS, TÜV, RoHS |
Physical
| Width | 21.5 cm (8.50 in.) |
| Height | 4.5 cm (1.75 in.) |
| Depth | 23 cm (9.13 in.) |
| Color | Dark Grey with white silk screening |
| Unit Weight with Power Supply | 2.0 kg (4.5 lbs.) |
| Shipping Weight | 2.7 kg (6.0 lbs.) |
| 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) |
| Weight | 1.2 kg (2.6 lbs.) |
Environmental
| Temperature – Operation | -10 ºC (14 ºF) to +40 ºC (104 ºF) |
| Temperature – Storage | -20 ºC (-4 ºF) to +50 ºC (122 ºF) |
| Relative Humidity | 0 to 95% relative humidity, non condensing |
Compliance
| RF | FCC Part 15, Part 90, Industry Canada |
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