Overview

ATW-R900a receiver and ATW-T902a handheld dynamic unidirectional microphone/transmitter. Includes AT8456a Quiet-Flex™ stand clamp.

Specifications

• Overall System
  • Operating Frequencies: VHF highband, 169 MHz to 172 MHz
  • Modulation Mode: FM
  • Maximum Deviation: +/-10 kHz
  • Frequency Response: 80 Hz to 13 kHz
  • Operating Range:
    • 200' (60 m) typical
    • Open range environment with no interfering signals
  • Total Harmonic Distortion: <1% (at 1 kHz, +/-10 kHz deviation)
  • Operating Temperature Range:
    • 40° F (4° C) to 110° F (43° C)
    • Battery performance may be reduced at very low temperatures
  • Notes: First-generation System 9 (original) components: ATW-R900 receiver ATW-T901 body-pack transmitter ATW-T902 unidirectional dynamic microphone transmitter Click here for the original System 9 Owner's Manual.
• Handheld Transmitter
  • RF Power Output: 10 mW
  • Spurious Emissions: Following federal and national regulations
  • Battery Type: 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
  • Accessories Included: AT8456a Quiet-Flex™ stand clamp
• Body Pack
  • RF Power Output: 10 mW
  • Battery Life: 8 hours (alkaline) Depending on battery type and use pattern
  • Battery Type: Two 1.5V AA not included
  • Dimensions: 2.76" (70.2 mm) W x 4.08" (103.7 mm) H x 0.98" (24.9 mm) D
  • Input Connections: Four-pin Locking Connector Pin 1: GND Pin 2: INST INPUT Pin 3: MIC INPUT Pin 4: DC BIAS +9V
  • Net Weight: 2.8 oz (80.0 grams) without batteries
  • Spurious Emissions: Following federal and national regulations
• 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 ohms termination)
  • 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
  • Weight: 12.0 oz (337 grams)
  • Accessories Included: Power supply
  • 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)