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Audio-Technica ATW-902A - VHF Wireless Handheld Microphone System

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Overview

- 4-channel frequency-agile wireless system with handheld microphone
- Two independent receiver sections, automatically selects best signal
- Available in handheld, headworn, guitar, lavalier and body-pack configurations
- Single-channel receiver with advanced dipole antenna design operating
- Ground lift switch for bad power situations to avoid interference
- LED panel indicating frequency, battery, and signal

Details

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, headworn, 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 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-R900a also offers volume control along with AF Peak, RF and Power indicator lights.

Features:

  • 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
specifications

OVERALL SYSTEM SPECIFICATIONS

Operating Frequencies

VHF highband, 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

HANDHELD TRANSMITTER SPECIFICATIONS

RF Power Output

10 mW

Spurious Emissions

Following federal and national regulations

Batteries

Two 1.5V AA 
not included

Battery Life

8 hours (alkaline) 
Depending on battery type and use pattern

Dimensions

9.91" (251.8 mm) long, 
2.11" (53.5 mm) diameter

Net Weight

9.2 oz (260 grams) 
without batteries

Accessory Included

AT8456a Quiet-Flex™ stand clamp

what's included
  • Audio Technica ATW-900a
    • ATW-R900a receiver
    • ATW-T902a handheld microphone/transmitter
  • AT8456a Quiet-Flex stand clamp
documentation
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