M-216 SPECIFICATIONS
Page 16
Audio Input:
• Microphone input impedance for electret
type microphone - 3000 ohm
• Aux/Line input impedance - 10 k ohm at
0 dB nominal
Connectors:
Microphone - Micro-mini mono 2.5 mm
Auxiliary - Mini stereo 3.5 mm
Audio: Tip and sleeve
Battery Charging: + Tip, _ sleeve
9 volt DC input: + Ring, _ sleeve
(with current limiting)
Controls and Indicators:
• Synthesized channel selection switches
• Power On/Off switch
• Optional microphone muting switch
• Audio input gain control
• Power/Battery status indicator
• Audio (voice level) modulation indicator
• Companded auto/off switch (optional)
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
Frequency Modulation:
• 10 kHz deviation
Operating Radio Frequency:
ity:
57 synthesized frequencies in the 216-217 MHz
LPRS band under FCC part 95
Out-of-Band Emissions:
Better than 45 dB below carrier
R.F. Stability:
20 ppm XTL controlled
Digitally synthesized
RF Power Output:
10 mW to antenna system
Antenna System:
Body-worn microphone cord,
or whip plugged directly into
microphone connector when
auxiliary input is used
Current Drain:
18 mA constant current
Battery:
• 9 volt alkaline Eveready 522
or equivalent for up to 30 hours
of operation
• 9 volt Nickel-Metal Hydride
rechargeable battery for up to
10 hours of operation
Dimensions:
1 1/16" x 2 1/4" x 3 1/2"
(27 mm x 57 mm x 89 mm)
Weight:
5 ounces (140 grams)
FCC Compliance:
Certification under Part 95
NOTE: Specifications subject to
change without notice or
obligation
