Audio Technica ATW251/H92 Headset Wireless System

Audio Technica's Freeway 200 Series Wireless Systems are designed to provide reliable performance, easy setup and clear, natural sound quality. The ATW251/H92 professional VHF wireless system includes a ATWR250 receiver, ATWT201 transmitter and PRO92cW headset microphone (black). A novel dipole antenna system on the receiver improves operation by providing a ground element in addition to the usual signal element.

PRO 92cW Onmidirectional Headworn Microphone
Flexible, contoured loop hooks over either ear for a comfortable fit

Natural, smooth frequency response optimized for vocal articulation

Rugged construction designed to stand up to the challenges of day-to-day use

Comes with a storage pouch and clothing clip

Technical Info

Overall System Specifications
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° F (4° C) to 110° F (43° C)

Frequency Response: 80 Hz to 13 kHz

Receiver Specifications
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 dBµV 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

Body-pack Transmitter Specifications
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)