Product Overview
Consumer Alert - Most users do not need a license to operate this wireless
microphone system. Nevertheless, operating this microphone system without a license
is subject to certain restrictions: the system may not cause harmful interference;
it must operate at a low power level (not in excess of 50 milliwatts); and it has
no protection from interference received from any other device. Purchasers should
also be aware that the FCC is currently evaluating use of wireless microphone systems,
and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC
(TTY: 1-888-TELL-FCC) or visit the FCC�s wireless microphone website at http://www.fcc.gov/cgb/wirelessmicrophones.
A reliable and easy to use wireless system for the working musician.
- Advanced dipole antenna system for extended operating range
Power, RF, and AF Peak indicators
Volume control, 1/4" output jack and space-saving power supply
Rugged unidirectional dynamic element on hand-held microphone/transmitter
Variable microphone trim control and easily accessible On/Standby/Off switch on transmitters
Professional locking connector on UniPak body-pack transmitter
Product Details
Audio-Technica ATW-251 Freeway VHF UniPak Wireless System
The Audio-Technica ATW-251 Freeway VHF UniPak Wireless System is designed to provide reliable performance, easy setup and clear, natural sound quality. The Freeway VHF Lavalier Wireless System includes the ATW-R250 receiver, and the ATW-T201 body-pack transmitter. A novel dipole antenna system on the receiver improves operation by providing a ground element in addition to the usual signal element.
ATW-R250 receiver
The ATW-R250 receiver includes a space-saving switching power supply that automatically adapts to changes in mains voltage. Unlike bulky linear power supplies, this switching power supply is lightweight and compact; it uses only a single outlet space.
ATW-T201 UniPak transmitter
The versatile ATW-T201 UniPak body-pack transmitter has both a high-impedance input for instruments, and a low-impedance input with bias connection for use with dynamic and electret condenser microphones. A cable for connecting your source to the transmitter is not included because this UniPak version can be used with a variety of sources.
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- Overall System
VHF high band, 169mHz to 172mHz
Number of channels: Fixed
Frequency Stability: ±0.005%
Modulation Mode: FM
Normal Deviation: ±15kHz
Operating Range: 200' typical
Operating Temperature Range: 40<°> F (4<°> C) to 110<°> F (43 <° C)
Frequency Response: 80Hz to 13kHz
ATW-R250 receiver
Receiving System: Non-diversity, single-channel, dual antenna system
Image Rejection: >50dB minimum
Signal-to-Noise Ratio: 80dB at 10kHz deviation (A-weighted), maximum modulation 15kHz
Total Harmonic Distortion: <1% (±10kHz deviation at 1kHz)
Sensitivity: 20 dBuV, (S/N 60dB at 5kHz deviation, A-weighted)
Audio Output (balanced): 350 mV (at 1kHz, ±10kHz deviation, 100 KOhm load)
Output Connector: 1/4" TS ("mono") phone jack
Power Supply: 100-240V AC (50/60 Hz) to 12V DC 1A (center positive) switched mode external power supply
Dimensions (W x H x D): 7.48" x 1.65" x 5.12, (190.0 x 42.0 x 130.0 mm)
Net Weight: (without batteries) 11.0oz. (311g)
Accessories Included: Power supply
ATW-T201 UniPak transmitter
RF Power Output: High: 10mW; Low: 2mW, typical
Spurious Emissions: Under Federal Regulations
Dynamic Range: 90 dB, A-weighted Input Connections High impedance, low impedance, bias
Battery (not included): 9V (NEDA type 1604) alkaline
Current Consumption: 30 mA typical
Battery Life: Approximately 15 hours (High); 20 hours (Low), depending on battery type and use pattern
Dimensions (W x H x D): 2.56" x 4.33" x 1.00", (65.0 x 110.0 x 25.4 mm)
Net Weight: (without battery) 2.8oz (78g)