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Audio-Technica ATW-901A/L System 9 VHF Wireless Unipak System with Omnidirectional Lavalier Mic


The Audio-Technica ATW-901A/L System 9 VHF Wireless Unipak System is designed for live sound applications. It consists of a wireless VHF receiver, bodypack transmitter, and an omnidirectional lavalier microphone. The receiver uses two dipole antennas for extended range, and allows you to select your VHF transmission frequency (169.505, 170.245, 171.045, or 171.905 MHz). The receiver features LED indicator lights for channel, RF, and AF peak. The back of the receiver includes a volume control knob, squelch control knob, balanced XLR output, and an unbalanced 1/4" output. The receiver also features a hook to prevent accidental pull-out of the DC power supply. The bodypack transmitter is powered by two AA batteries and includes variable microphone and instrument trim, channel selection DIP switches, a Power/Mute button, and a Unipak input connector.

Type: VHF High Band
Operating Frequencies: 169.505, 170.245, 171.045, 171.905 MHz
Modulation Mode: FM
Maximum Deviation: ±10 kHz
Dynamic Range: ≥90 dB (A-weighted), typical
Operating Range: 200' (61.0 m), open range environment with no interfering signals
Operating Temperature Range: 40 to 110° F (4 to 43° C), battery performance may be reduced at very low temperatures
Frequency Response: 80 to 13,000 Hz
Receiving System: Non-diversity, single-channel, dual-antenna system
Image Rejection: 50 dB minimum
Audio Output: Nominal Output Level
Balanced XLR: 350 mV (1 kHz modulation, 10 kHz deviation, 100-kOhm load)
Unbalanced 1/4" (6.3 mm): 700 mV (1 kHz modulation, 10 kHz deviation, 100-kOhm load)
Power Supply: 100 to 240 VAC (50/60 Hz) to 12 VDC at 0.5 A (center positive) switched mode external power supply
Dimensions (W x H x D): 7.48 x 1.82 x 5.06" (190 x 46.2 x 129 mm)
Weight: 12.0 oz (337 g)
RF Power Output High: 10 mW
Spurious Emission: Following federal and national regulations
Input Connections: Four-pin, Locking Connector
Pin 1: GND
Pin 4: BIAS +9 VDC
Batteries: Two 1.5 V AA (not included)
Current Consumption: 8 hours (alkaline), depending on battery type and use pattern
Dimensions (W x H x D): 2.76 x 4.08 x 0.98" (70.2 x 104 x 24.9 mm)
Weight: 2.8 oz (79 g) (without batteries)
Package Weight: 2.55 lb
Box Dimensions (LxWxH): 13.9 x 10.9 x 4.4"

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