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Audio-Technica ATW-3131 BC

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Product Description

Audio Technica ATW3131BC   ( Audio-Technica ATW 3131 BC )

Wireless UHF Body pack Microphone System with AT831 cW Lavalier Microphone, Frequency-Agile, True Diversity, TV25-30

System Includes:

ATW-R3100b receiver
ATW-T310b UniPak Transmitter
AT831cW Lavalier Microphone
Audio-Technica's third-generation 3000 Series wireless systems offer up to 1001 selectable UHF frequencies and new features for clear sound & intuitive operation. AT has simplified selection of usable frequencies, increased system reliability, and illuminated transmitter screens for clear reads on dark stages. It all adds up to the luxury of rock-solid, richly detailed high-fidelity sound.

The versatile ATW-T310b UniPak body-pack transmitter features a secure 4-pin locking connector compatible with a wide range of microphones, as well as a guitar cable. A 3-position sliding cover on the transmitter's control panel prevents accidental shut-off or channel-switching. A new locking battery compartment provides a more secure latch and more robust design.

AT831cW Cardioid Condenser Lavalier Microphone
This clip-on lavalier mic provides crisp, full-sounding voice pickup. The AT831cW also excels as an instrument mic, especially for pickup of acoustic guitar with included AT8444 guitar adapter. The mic is ideal for higher SPL applications. Excellent gain before feedback and suppression of background noise. Operates on phantom power only.


996-1001 UHF frequencies in one of three UHF frequency ranges
Antenna power available for powered antennas & other in-line RF devices
Nine pre-coordinated frequency scan groups simplify selection of usable frequencies in a multi-channel wireless system
True Diversity operation reduces dropouts
Advanced digital Tone Lock squelch effectively blocks stray RF and communicates transmitter data for receiver display
Transmitters offer backlit LCD & dual-color LED
Locking battery compartment with secure latch and robust design
Ground-lift switch helps eliminate audible hum caused by ground loops
Balanced and unbalanced audio output jacks
Overall System Specifications

Operating Frequencies: UHF Band
Band C: 541.500 MHz to 566.375 MHz (996 frequencies)
Not all frequencies are available in all areas. Please check with local regulations.
Minimum Frequency Step: 25kHz
Modulation Mode: FM
Maximum Deviation: +/-35kHz
Dynamic Range: >110dB (A-weighted), typical
Total Harmonic Distortion: <1% (at 1kHz, +/-17.5 kHz deviation)
Operating Range: 100m (300') typical
Open range environment with no interfering signals
Operating Temperature Range: -5º C to +45º C (23º F to 113º F)
Battery and LCD performance may be reduced at very low temperatures
Frequency Response: 70Hz to 15kHz (+1 dB, -3 dB)
ATW-R3100b Receiver Specifications

Receiving System: True diversity
Image Rejection: 60dB nominal, 55dB minimum
RF Sensitivity: 20 dBuV at 60 dB S/N ratio
Maximum Output Level: XLR, balanced: +9dBV; 1/4", unbalanced: +7 dBV
Antenna Input: BNC-type, 50 ohms; Bias voltage 12V DC, 60 mA, each
Power Requirements: 12-18V DC, 500 mA
Dimensions (W x D x H): 8.27" x 6.47" x 1.73" (not including BNC connectors or feet)
Net Weight: 38.8 oz, without accessories
Accessories Included: Two flexible UHF antennas; AC adapter (country dependent); rack-mount adapters
ATW-T310b Body-Pack Transmitter Specifications

RF Power Output: High: 30mW, Low: 10mW (switchable), at 50 ohms
Spurious Emissions: Following federal and national regulations
Input Connection: Four-pin Locking Connector
Pin 1: GND
Pin 4: DC BIAS +5V
Batteries: Two 1.5V AA, not included
Battery Life: Depending on battery type and use pattern
High: 6 hours (alkaline)
Low: 8 hours (alkaline)
Dimensions (W x D x H): 2.6" x 0.94" x 3.43"
Net Weight: 2.9 oz, without batteries
AT831cW Lavalier Microphone Specifications

Includes clothing clip and windscreen
55" cable terminated with locking 4-pin connector for AT UniPak wireless systems
Element: Fixed-charge back plate, permanently polarized condenser
Polar Pattern: Cardioid
Frequency Response: 40-16,000 Hz
Low Frequency Roll-Off: 80Hz, 18 dB/octave
Open Circuit Sensitivity: -42dB (7.9mV) re 1V at 1 Pa
Impedance: 250 ohms
Maximum Input Sound Level: 141 dB SPL, 1kHz at 1% T.H.D.
Dynamic Range (typical): 112 dB, 1kHz at Max SPL
Signal-to-Noise Ratio: 65 dB, 1kHz at 1Pa
Phantom Power Requirements: 11-52V DC, 2 mA typical
Switch: Flat, roll-off
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