Audio-Technica ATW-902A
Wireless Handheld Microphone System


Engineered to provide clear, natural sound quality with rock-solid performance and easy setup, Audio-Technica's ATW-902A is part of their System 9 wireless series. This particular package's configuration consists of an ATW-R900a receiver, an ATW-T902a handheld dynamic unidirectional microphone/transmitter, and AT8456a Quiet-Flex™ stand clamp.

Audio-Technica System 9
A 4-channel frequency-agile wireless system, A-T's System 9 features sleek, contemporary styling with a stackable design. System 9 is available in handheld, headworn, guitar, lavalier, and body-pack configurations (other configurations sold separately). It offers 4 compatible user-switchable VHF channels (169.505, 170.245, 171.045, and 171.905 MHz).

Each System 9 outfit includes the ATW-R900a receiver and either a body-pack transmitter or handheld microphone/transmitter (other configurations sold separately). The ATW-R900a is a non-diversity, single-channel receiver with advanced dipole antenna design for extended operating range, improving 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.

Audio-Technica ATW-902A Includes:

  • ATW-R900a receiver
  • ATW-T902a handheld dynamic unidirectional microphone/transmitter
  • AT8456a Quiet-Flex™ stand clamp
  • Receiver power supply

Audio-Technica ATW-902A 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

Audio-Technica ATW-902A Specifications:

Overall System

  • 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: 200ft (60m), typical
    Note: Open range environment with no interfering signals.
  • Operating Temperature Range: 40°-110° F (4°-43° C)
    Note: Battery performance may be reduced at very low temperatures. 
  • Frequency Response: 80 Hz - 13 kHz

ATW-R900a Receiver

  • 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 Ohm termination)
  • Normal Output Level:
    • XLR, balanced: 350 mV (1 kHz modulation, 10 kHz deviation, 100 kOhm load)
    • ¼" (6.3 mm), unbalanced: 700 mV (1 kHz modulation, 10 kHz deviation, 100 kOhm load)
  • Power Supply: 100-240V AC (50/60 Hz) to 12V DC .5A (center positive) switched mode external power supply
  • Dimensions (W x H x D): 7.48" x 1.82"  x 5.06" (190.0 x 46.2 x 128.5mm)
  • Net Weight: 12.0 oz (337 grams)

ATW-T902a Handheld Transmitter

  • RF Output Power: 10 mW
  • Spurious Emissions: Following federal and national regulations
  • Batteries: (2) 1.5V AA (sold separately)
  • Battery Life: 8 hours (alkaline)
    Note: depends on battery type and usage pattern.
  • Dimensions (L x Ø):  9.91" x 2.11" (251.8 x 53.5mm)
  • Net Weight (without batteries):  9.2 oz. (260 grams)
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