The COMTEK Wireless Listening System is a one-way communication system offering perfect speech clarity over distances as far away as 300 feet. It overcomes the hearing challenges of distance between instructor and student, and its rugged construction ensures long lasting durability in the most demanding environments.
The COMTEK System has 60 channels. You can add up to 100 additional receivers off the main transmitter for small or large groups. Uses regular 9V battery or 9V rechargeable batteries.
Includes:
• 1- M-216 wireless microphone transmitter w/ microphone mute switch USER MANUAL(PDF)
• 1- PR-216 receiver and earphones USER MANUAL (PDF)
• 1- CM-183 RT omni-directional lapel microphone
• 1- Snap-on belt clip
• 2- regular 9V batteries
• Carrying case
M-216
Audio Input:
• Microphone input impedance for electret type microphone – 3k ohm
• Aux/Line input impedance – 10k ohm at 0 dB nominal
Connector:
• Microphone – Micro-mini 2.5 mm mono (locking or non-locking)
• Auxiliary – Mini 3.5 mm Stereo
– Audio – Tip and Sleeve
– Battery Charging – Tip and Sleeve
– External 9V power – Ring and Sleeve
Controls and Indicators:
• Power On/Off switch
• Synthesized channel selection switches
• Microphone mute switch (Optional)
• Audio input gain control
• Modulation voice level indicator
Antenna System: Body-worn microphone cord or whip antenna plugged directly into microphone connector when auxiliary input it used
Frequency Response: 80 Hz to 10 kHz
Modulation:
• 5 kHz deviation Ch. 1-40 (non-companded)
• 10 kHz deviation Ch. 41-60 companded
RF Power Output: 10 mW to the antenna system
Out-of-Band Emissions: Better than 45 dB below carrier
Current Drain: 17 mA constant current
Weight: 4 ounces (110 grams)
Battery:
• 9 V alkaline for up to 35 hours of operation
• 9 V Nickel-Metal Hydride rechargeable for up to 15 hours of operation
Dimensions: 1 1/6” x 2 1/2” x 3 1/4” (27 mm x 57 mm x 83 mm)
PR-216
Audio Output: Headset output +16 dBu (low impedance)
Connector: Stereo/mono 3.5 mm audio output connector
Indicators: LED Power/Battery indicator
Controls:
• Power On/Off switch
• Volume control (50 dB range)
• 99-position rotary channel selector switches
Audio Frequency Response: 80 Hz to 12 kHz
Harmonic Distortion: Less than 1% (80% modulation)
Operating Radio Frequency: 216-217 MHz
Frequency Stability: 0.002% frequency synthesized crystal controlled
RF Sensitivity: 0.5 uV for 12 dB SINAD
Adjacent Channel Rejection: 65 dB 50 kHz off-channel
Spurious Rejection: 60 dB (image excluded)
Ultimate Quieting: Better than 95 dB Companded Channels
Deviation Acceptance: Up to 10 kHz
Antenna: Integral with output cable
Current Drain: 15 mA nominal
Power Requirements: 9 volt alkaline battery or rechargeable nickel metal hydride
Dimensions: 1 1/6” x 2 1/2” x 3 1/4” (27 mm x 57 mm x 83 mm)
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