Description
The Comtek CC-75 MLD Large Area Assistive Listening System includes a base station transmitter with rack mount, two receivers, two earphones, a remote dipole antenna, and a 12-volt power supply. The system can also be used with optional stereo or mono headphones, direct audio input cords with hearing aids, cochlear implant processors, and neck loops for hearing aids with a T coil. The CC-75 MLD is designed for use in scenarios where multiple transmitters are operating independently in the same building.
The base station transmitter is flash-memory programmable for quick setting recalls and is designed for permanent installation. The receivers are powered by two AA batteries for up to 100 hours and feature AutoSmart tuning that allows them to tune to the nearest compatible receiver. You can integrate additional PR-75 receivers into the system depending on your needs.
| Operating Frequency |
72.02 to 75.98 MHz |
| Frequency Stability |
Better than 0.002% (Digitally Synthesized, Crystal Controlled) |
| RF Output |
120 mW (Maximum for FCC Part 90) |
| Frequency Response |
80 Hz to 10 kHz |
| Distortion |
< 0.5% |
| Compander |
Companded or Non-Companded Operation |
| Limiter |
Peak Type |
| Connectors |
1 x XLR/TRS Combo Input
1 x BNC RF Output
1 x Power Connector |
| Indicators |
1 x LED VU Meter
1 x Antenna Load LED
1 x Power LED |
| Antenna |
19″ (483 mm) Telescopic Antenna, Top Mount
BNC Antenna Connector |
| Power Requirements |
12V, AC or DC, 200 mA Maximum |
| Dimensions (WxHxD) |
3.75 x 1.60 x 5.25″ (9.5 x 4.1 x 13.3 cm) |
| Weight |
15.25 oz (432 g) |
| Audio Output |
Headset output 200 mW average (impedance as low as 16 Ω) |
| Connector |
1x 1/8″ (3.5 mm) stereo/mono audio output connector and charging input
0.1″ (2.5 mm) stereo connector for I/O data programming |
| Indicator Lights |
Multi-function LED (channel-seeking, received signal, no signal, low battery, power, battery status, R.F. signal on/off) |
| Controls |
Volume control (50 dB range)
Automatic on/off when headphones plugged in/unplugged
One-button tuning control (AST) |
| Audio Frequency Response |
100 Hz to 10 kHz (±3 dB) |
| Operating Radio Frequency |
72 to 76 MHz |
| Frequency Stability |
0.002% frequency synthesized crystal controlled |
| RF Sensitivity |
1.3 μV for 38 dB SINAD |
| Ultimate Quieting |
Better than 75 dB |
| Deviation Acceptance |
Up to 10 kHz |
| FM |
Non-Companded FM Deviation up to 40 kHz |
| Antenna |
Integral with headphone cable |
| Battery Life |
100 hours with alkaline batteries |
| Power Requirements |
2x AA batteries |
| FCC Compliance |
Complies with Part 15 of FCC rules for scanning receivers |
| Dimensions |
1.06 x 2.5 x 3.25″ (2.7 x 5.7 x 8.26 cm) |
| Connector |
1/8″ (3.5 mm ) Mono Mini Plug |
| Cable Length |
30″ (0.75 m) |
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