- 216 MHz Frequency Transmitter
- Transmits Signal from Main Audio System
- Broadcast to Belt & Stationary Receivers
- Look & Listen LCD Display
The 216 MHz Stationary RF Transmitter from Listen Technologies connects to your main audio system to broadcast a high-quality audio signal to belt pack receivers or stationary receivers, ensuring your audience can clearly hear and understand your presentation. The transmitter features Listen Technologies' signature Look & Listen LCD display, which shows channel, lock, programming, and RF power.
- 70 dB signal-to-noise ratio
- 57 channels
- Digitally-tuned so the transmission won't drift
- Balanced and unbalanced inputs
- Rack mountable
- Auto processor to condition the audio for voice/music prior to transmission
- VU level meter and test tone
| Audio |
| Inputs | Rear panel: 1 x 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
2 x phono connectors, unbalanced, -10/+10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100 kohm |
| Frequency Response | 50 Hz to 10 kHz (±3 dB) |
| Signal to Noise Ratio | SQ Enabled: 80 dB
SQ Disabled: 50 dB |
| Distortion | <2% total harmonic distortion (THD) at 80% deviation |
| 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 |
| Outputs | Audio: input 1 and input 2, mixed output (rear panel), 2 x phono connectors, unbalanced, -10 dBu nominal output level, +15 dBu maximum, impedance 10 Ohms
Headphone:Front panel, 1 x 3.5 mm stereo connector, unbalanced, adjustable output level, +3 dBu maximum, impedance 10 Ohms |
| Controls |
| User 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) |
| Adjustments | Internal: compression ratio for audio processor |
| Programming | SQ on/off, process on/off, channel lock |
| Indicators |
| LEDs | Indicates input 1, input 2, and mix audio levels
10 segment LEDs (8 green, 2 red) |
| Processing | Indicated by a green LED when on (front panel) |
| RF Power | Indicated on the LCD (low, mid, high) |
| LCD | Channel designation, lock status, RF power level, programming (front panel) |
| Tone | Test Tone: red LED illuminates when test tone is enabled |
| RF Specification |
| Frequency Range | 216.0125 to 216.9875 MHz |
| Number of Channels | 19 wide band, 38 narrow band |
| Frequency Accuracy | ±.005% stability 32 to 122°F (0 to 50°C) |
| Stability | Transmitter: 50 PPM |
| Transmission Range | Up to 3,000' (914 m) |
| Output Power | 100 mW |
| Antenna Connector | BNC |
| Power |
| Power Supply | In-line power supply |
| 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" (5.0 mm) OD, 0.01" (2.5 mm) ID, barrel type |
| Compliance | UL, CE, GS, TUV, RoHS |
| Environmental |
| Operating Temperature | 14 to 104°F (-10 to 40°C) |
| Storage Temperature | -4 to 122°F (-20 to 50°C) |
| Humidity (Non-condensing) | <95% relative humidity |
| Physical |
| Color | Dark gray with white silk screening |
| Rack Mountable | One rack space high, 1/2 rack space wide |
| Dimensions | 1.75 x 8.5 x 9.13" (4.5 x 21.5 x 23 cm) |
| Weight | Unit: 2.6 lb (1.2 kg)
Unit with Power Supply: 3.5 lb (1.6 kg) |
| Packaging Info |
| Package Weight | 3.6 lb |
| Box Dimensions (LxWxH) | 13.4 x 9.7 x 3.0" |
In the Box
Listen Technologies Stationary RF Transmitter (216 MHz)
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