FEATURES

The Audio-Technica ATW-901A/G System 9 VHF Wireless Unipak System is designed for live sound reinforcement applications. The system consists of a wireless VHF receiver, a bodypack transmitter, and an AT-GcW guitar/instrument input cable.

The 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. The receiver includes LED indicator lights for channel, RF, and AF peak. The back of the receiver features a volume control knob, a squelch control knob, a balanced XLR audio output, and an unbalanced 1/4" audio output. The 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.

Four Selectable VHF Transmission Frequencies

Select from 169.505, 170.245, 171.045, and 171.905 MHz

Dipole Antenna for Extended Range

The receiver utilizes two antennas to improve the range of the system

Squelch Control

The receiver features a squelch adjustment knob that controls the threshold for the radio signal that regulates audio output. If the radio signal from the microphone drops below the threshold, the squelch control mutes the audio output to prevent the transmission of radio interference and white noise from entering the speakers

GENERAL 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

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
• 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