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The M-216 wireless microphone transmitter offers the ultimate performance and versatility for assistive listening, language interpretation, tour guide presentations, personal cueing, and for other personal remote transmission situations. For use with the PR-216 and PR-216 Option 7 synthesized receivers.
The M-216 incorporates the latest digital and analog technologies to produce low residual noise, wide dynamic range, and extended frequency response rendering the most natural sound possible from a wireless microphone.
The transmitter's microcontroller automatically sets the modulation deviation, companding or non-companding audio processing, and the EQ when corresponding channels are selected. Because of this comprehensive feature, this versatile transmitter can transmit on 19 high fidelity channels and 38 standard channels ensuring compatibility with receivers conforming to regulations regarding Low Power Radio Service (LPRS) transmissions in the 216-217 MHz band under Part 95 of the FCC regulations.
Specifications
| Audio Input: |
Microphone input impedance for electret type microphone 3 k ohm
Aux/Line input impedance 10 k ohm at 0 dB nominal |
| Connectors: |
Microphone - Micro-mini mono 2.5 mm (Not for Option 7)
Auxiliary - Mini Stereo 3.5 mm
Audio - Tip and sleeve
Battery Charging - Tip and sleeve |
| Controls and Indicators: |
Synthesized channel selection switches
Power On/Off switch
Optional microphone muting switch
Audio input gain control
Power/Battery status indicator |
| Frequency Response: |
80 Hz to 10 kHz |
| Audio Distortion: |
Less than 1% at 80% modulation |
| Modulation Limiter: |
Soft compressor with 30 dB linear overload protection
Attack time = less than 1 ms
Recovery time = 10 ms |
| Modulation: |
5 kHz deviation Ch. 1-40 (non-companded)
10 kHz deviation Ch. 41-60 |
| Operating Radio Frequency: |
57 synthesized channels in the 216-217 MHz LPRS band |
| Out of Band Emissions: |
Better than 45 dB below carrier |
| R.F. Stability: |
20 ppm XTL controlled
Digitally synthesized |
| R.F. Power Output: |
10 mW to the antenna system |
| Current Drain: |
13 mA constant current |
| Weight: |
4 ounces (110 grams) |
| Antenna System: |
Body worn microphone cord or loaded whip plugged directly into microphone connector when auxiliary input is used
Short 6" BNC loaded whip for Option 7 |
| Battery: |
9 volt alkaline, Eveready 522 or equivalent, for up to 40 hours of operation
9 volt Nickel-Metal Hydride rechargeable battery for up to 12 hours of operation |
| Dimensions: |
1 1/16" x 2 1/4" x 3 1/4" (27 mm x 57 mm x 83 mm) |
| F.C.C. Compliance: |
Certification under Part 95 |
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