Audio Technica ATW-901A/L System 9 Lavalier Microphone System

DESCRIPTION      ATW-R900a receiver and ATW-T901a body-pack transmitter with omnidirectional Lavalier microphone. Audio-Technica's System 9 is a four-channel frequency-agile wireless system designed to provide rock-solid performance along with easy setup and clear, natural sound quality. Featuring sleek, stackable, contemporary styling, System 9 is available in handheld, head-worn, guitar, lavalier, and body-pack configurations. The system offers four compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz). Each System 9 configuration includes the ATW-R900a receiver and either a body-pack transmitter or handheld microphone/transmitter. The ATW-R900a is a non-diversity, single-channel receiver with an advanced dipole antenna design for an extended operating range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R900a also offers volume control along with AF Peak, RF, and Power indicator lights. Easy operation and clear, natural sound quality 4 selectable frequency-coordinated VHF channels Balanced XLR and unbalanced 1/4" output jacks enable use with a wide variety of audio gear Reliable performance and durable construction Advanced dipole antenna system for extended operating range CHARACTERISTICS OVERALL SYSTEM SPECIFICATIONS Operating Frequencies: VHF high-band, 169 MHz to 172 MHz Modulation Mode: FM Maximum Deviation: +/-10 kHz Dynamic Range: >/=90 dB (A-weighted), typical Total Harmonic Distortion: <1% (at 1 kHz, +/-10 kHz deviation) Operating Range: 200' (60 m) typical Open range environment with no interfering signals Operating Temperature Range: 40° F (4° C) to 110° F (43° C) Battery performance may be reduced at very low temperatures Frequency Response: 80 Hz to 13 kHz Maximum Simultaneous Use (Recommended): 200' minimum RECEIVER SPECIFICATIONS Receiving System: Non-diversity, single-channel, dual antenna system Image Rejection: 50 dB minimum RF Sensitivity: 20 dBuV at 60 dB S/N ratio (50 ohms termination) Audio Output: Nominal Output Level XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) 1/4" (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100k ohm load) Power Supply: 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply Operating Temperature Range: 40° F (4° C) to 110° F (43° C) Dimensions: 7.48" (190.0 mm) W x 1.82" (46.2 mm) H x 5.06" (128.5 mm) D Net Weight: 12.0 oz (337 grams) Accessory Included: Power supply BODY-PACK TRANSMITTER SPECIFICATIONS RF Power Output: 10 mW Spurious Emissions: Following federal and national regulations Input Connections : Four-pin Locking Connector  Pin 1: GND  Pin 2: INST INPUT  Pin 3: MIC INPUT  Pin 4: DC BIAS +9V Batteries : Two 1.5V AA not included Battery Life: 8 hours (alkaline)  Depending on battery type and use pattern Dimensions: 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D Net Weight: 2.8 oz (80.0 grams) without batteries