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Audio-Technica ATW-251/L Freeway VHF Wireless Lavalier System

Price: $159.95

Out of Stock - Special Order

Audio-Technica’s Freeway® 200 Series Wireless Systems are designed to provide reliable performance, easy setup and clear, natural sound quality. Available in handheld, headworn, guitar, lavalier and body-pack configurations, the 200 Series Freeway Wireless Systems are single-channel, fixed-frequency systems available in three VHF frequencies (169.505, 170.245, and 171.905 MHz).

Each 200 Series Freeway Wireless System includes the ATW-R250 receiver and either a body-pack transmitter or handheld microphone/ transmitter. The ATW-R250 is a non-diversity, single-channel receiver with advanced dipole antenna design for extended operating range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R250 also offers volume control along with AF Peak, RF and Power indicator lights.

  • Easy operation and clear, natural sound quality
  • Reliable performance and durable construction
  • 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 handheld microphone/transmitter
  • Variable microphone trim control and easily accessible On/Standby/Off switch on transmitters
  • Professional locking connector on UniPak® body-pack transmitter
  • Available in 7 system configurations

ATW-R250 receiver, ATW-T201 transmitter and omnidirectional lavalier microphone.



Operating Frequency VHF high band, 169 MHz to 172 MHz

Number of Channels Fixed channel

Frequency Stability +/-0.005%

Modulation Mode FM

Maximum Deviation +/-15 kHz

Operating Range 200' typical

Operating Temperature Range 40 degrees F (4 degrees C) to 110 degrees F (43 degrees C)

Frequency Response 80 Hz to 13 kHz


Receiving System Non-diversity, single-channel, dual antenna system

Image Rejection 50 dB minimum

Signal-to-noise Ratio 80 dB at 10 kHz deviation (IEC-weighted), maximum modulation 15 kHz

Total Harmonic Distortion <=1% (10 kHz deviation at 1 kHz)

Sensitivity 20 dB[mu]V for 60 dB S/N (IEC-weighted)

Audio Output 350 mV (1 kHz modulation, 10 kHz deviation, 100 k ohm 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 7.48" (190.0 mm) W x
1.65" (42.0 mm) H x
5.12" (130.0 mm) D

Net Weight 11.0 oz (311 g)

Accessory Included Power supply


RF Power Output 10 mW High position, 2 mW Low position, typical

Spurious Emissions Under federal regulations

Dynamic Range >=90 dB, A-weighted

Input Connections High impedance, low impedance, bias

Battery 9V (NEDA type 1604) alkaline, not included

Current Consumption 30 mA typical

Battery Life Approximately 15 hours in High position;
Approximately 20 hours in Low position
(depending on battery type and use pattern)

Dimensions 2.56" (65.0 mm) W x
4.33" (110.0 mm) H x
1.00" (25.4 mm) D

Net Weight 2.8 oz (78 g) (without battery)

Model: ATW-251/L
Manufacturer: audio-technica