
Audio Technica ATW-901A/H, System 9 Wireless System
Descriptions Audio Technica ATW-901A/H, System 9 Wireless System The System 9 VHF Wireless UniPak System which is designed for live sound reinforcement applications is the Audio Technica ATW-901A/H. The system Audio Technica ATW-901A/H consists of a wireless VHF receiver, a bodypack transmitter, and a PRO 8HecW headworn microphone. Audio Technica ATW-901A/H receiver utilizes two dipole antennas for extended range, and allows you to select your VHF transmission frequency from 169.505, 170.245, 171.045, or 171.905 MHz. Audio Technica ATW-901A/H receiver features a volume control knob, a squelch control knob, a balnced XLR audio output, and an unbalanced 1/4" audio output. The ATW-901A/H receiver also includes a power cord 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. Audio Technica ATW-901A/H Product Features 169.505 to 171.905 MHz Dipole Antenna for Extended Range Channel, RF, and AF Peak Indicator LEDs Balanced XLR & Unbalanced 1/4" Outputs Specifications Overall System 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 Receiver Specifications 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) Bodypack Transmitter RF Power Output High: 10 mW Spurious Emission Following federal and national regulations Input Connections Four-pin, Locking Connector Pin 1: GND Pin 2: INST INPUT Pin 3: MIC INPUT 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)