Comtek AT-216 Wireless Auditory Assistance Personal FM System with Enviro-Mic

Auditory Assistance Kit with Enviro-Mic Receiver

At work, home, or on-the-go, the AT-216 gives you a close-up on sound. With internal audio processing that emphasizes the frequencies that define speech intelligibility, the AT-216 produces the highest fidelity available from any personal FM system. Incorporating unique options and accessories, it affords users the ability to effectively communicate in difficult listening environments. Not only are FM systems the best way to improve signal-to-noise ratios to overcome the listening challenges of distance, background noise, and reverberations, FM systems also significantly improve the effectiveness of hearing aids and cochlear processors. The NTC-102 neckloop provides a wireless connection to hearing aids and ear-level cochlear processors equipped with a telecoil (T-switch).

A unique environmental microphone feature adds even more functionality to the AT-216. It provides the listener with the ability to hear sounds from two sources: from the M-216 transmitter and from the PR-216 receiver's environmental microphone. The receiver's environmental microphone comes in one of two options:

Enviro-Mic: Combines environmental sounds from the receiver's microphone with audio from the transmitter so that both sound sources are heard together.

The micro-mini jack on the PR-216 receiver uses the M-4020P plug-in environmental microphone for either the Enviro-Mic or Smart-Mic option. This input jack may also be used with other accessories such as handheld directional microphones and clip-on speech training microphones.

The TM-10 conference table microphone adapter adds a whole new dimension to the versatile AT-216 personal assistive listening system. Simply inserting the lapel microphone into the TM-10 transforms the microphone into a table-top conference microphone emphasizing the frequencies that enhance speech clarity.

Using the TM-10 allows the microphone to function as an acoustically tailored, "boundary-type" microphone by using the reflective surface of a table or desk as the boundary area that the microphone picks up. This allows the user to hear everyone sitting around the table eliminating the need to pass around a microphone.

Complete AT-216 System Includes:
1 x M-216 Personal Transmitter
1 x CM-183 RT Omnidirectional Lapel Microphone
1 x TM-10 Conference Table Microphone Adapter
1 x PR-216 Receiver with Enviro-Mic or Smart-Mic Option
1 x M-4020P Plug-in Environmental Microphone
1 x NTC-102 Neckloop Transductor
1 x SM-N Earphone Assembly or LS-3 Headphone
1 x NBC 9-3-2 Battery Charger
2 x NH9-200 Ni-MH Rechargeable Batteries
1 x CB-36 ST Aux Audio Input Cable
2 x BC-216 Snap-on Belt Clip
1 x C-216 Carrying Case

Specifications:

• Transmitter
• Connectors: 1x 1/8" (3.5 mm) Auxiliary Line Input (Also Used for Battery Charging)
• 1x 1/10" (2.5 mm) Mic/Antenna Input
• Frequency Response: 80 Hz to 10 kHz
• Distortion: Less than 1% @ 80% Modulation
• Modulation: 5 kHz Deviation (Channels 1 to 40, Non-Companded)
• 10 kHz Deviation (Channels 41 to 60, Companded)
• RF Output: 10 mW to the antenna system
• Operating Frequency: 57 Synthesized Channels in the 216 to 217MHz LPRS Band Under FCC Part 95
• Emissions: Out of Band: Better than 45 dB below carrier
• Current Drain: 17 mA constant current
• Battery: 9 V Alkaline (Eveready 522 or Equivalent) - Up to 35 Hours
• 9 V NiMH Rechargeable - Up to 15 Hours
• Dimensions (WxHxD): 1.16 x 2.5 x 3.25" (27 x 57 x 83 mm)
• Weight: 4 oz (110 g)
• Receiver
• Audio Output: Headset Output: 16 dBu (low impedance)
• 1x 1/8" (3.5 mm) Stereo/Mono Connector
• Controls: 1x Power On/Off switch
• 1x Volume control (50 dB range)
• 1x 99-Position rotary channel selector switches
• Frequency Response: 80 Hz to 12 kHz
• Total Harmonic Distortion: Less than 1% (80% modulation)
• RF Frequency Range: 216 to 217 MHz
• Frequency Stability: 0.002% Frequency Synthesized Crystal Controlled
• RF Sensitivity: 0.5 uV for 12 dB SINAD
• Adjacent Channel Isolation: 65 dB 50 kHz Off-Channel Rejection
• 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 V Alkaline Battery
• Rechargeable Nickel Metal Hydride
• Dimensions (WxHxD): 1.16 x 2.5 x 3.25" (27 x 57 x 83 mm)
• Microphone
• Type: Lapel Mic
• Polar Pattern: Omnidirectional
• Adapter
• Type: Conference Table Microphone Adapter
• Frequency Response: 100 Hz to 10 kHz
• Polar Pattern: Hemispherical Over Boundary
• Output Impedance: 1 kΩ (Nominal)
• Sensitivity: -28 dB @ 1 kHz (Reference: 1 V)
• Output Noise: Equivalent: 23.5 dB (A-weighted)
• Maximum SPL: 128 dB (@ 10 kHz load)
• Signal to Noise Ratio: 70.5 dB
• Dimensions (DxH): 2 x 0.640" (5.08 x 1.625 cm)
• Weight: 1.33 oz (38 g) (With Microphone)