AT-216 Personal FM System

• Creates A Direct Link Between Listener and Speaker
• Hearing Aid & Cochlear Processor Compatible



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.

Smart-Mic: Prioritizes the transmitter’s audio over environmental sounds from the receiver’s microphone. When no sound from the transmitter is present, the environmental microphone on the PR-216 receiver automatically activates. When sound from the transmitter is present, the receiver’s environmental microphone automatically mutes to help block out background noise.

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

M-216 Personal Transmitter:

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 Personal Receiver:

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)
• 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)