Listen Technologies – LT-800
Stationary RF Transmitter
Product Highlights
- 57 selectable channels
- Balanced and unbalanced signal inputs
- Built in auto processor optimizes audio
- Look & Listen LCD display for quick programming
- VU level meter
Rentex No. LT80072TX
Stationary transmitter produces high quality audio signal in a wide range of applications. Operating in the 72-76 MHz range means no conflict with your existing wireless audio inventory. Inputs are either 2x RCA or a XLR 1/4″ combo, with a selectable mic/switch that also has phantom power if going directly in with a condenser microphone. There is also selectable RF power.
| Frequency Response | 50 Hz – 15 kHz (±3 dB) |
| Signal-to-Noise Ratio | SQ enabled 80 dB, SQ disabled 60 dB |
| Audio Input 1 | Rear panel, one (1) Female XLR or 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 |
| 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 | SQ on/off, process on/off, channel lock |
| LCD | Channel designation, lock status, RF power level, programming (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)
|
| Frequency Range | 72.025 – 75.950 MHz |
| Number of Channels | 17 wide band, 40 narrow band |
| Frequency Accuracy | ± .005% stability +32º to +122 ºF (0º to +50 ºC) |
| 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 |
| Number of Simultaneous Transmitters | Up to 8 |
| 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 | 0.02 in (5.0 mm) OD, 0.01 in. (2.5 mm) ID, barrel type |
| Compliance | UL, CE, GS, TÜV, RoHS |
| Width | 21.5 cm (8.50 in.) |
| Height | 4.5 cm (1.75 in.) |
| Depth | 23 cm (9.13 in.) |
| Color | Black with grey silk screening |
| Unit Weight with Power Supply | 1.6 kg (3.5 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.) |
| 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 |
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