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Audio-Technica ATW-251 Freeway VHF Lavalier Wireless System

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The Audio-Technica ATW-251 Freeway VHF Lavalier Wireless System is designed to provide reliable performance, easy setup and clear, natural sound qual...Click To Read More About This Product

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The Audio-Technica ATW-251 Freeway VHF Lavalier Wireless System is designed to provide reliable performance, easy setup and clear, natural sound quality. The Freeway Wireless Microphone System includes the ATW-R250 receiver, ATW-T201 body-pack transmitter, and the Lavalier microphone. A novel dipole antenna system on the receiver improves operation by providing a ground element in addition to the usual signal element.

ATW-R250 receiver

The ATW-R250 receiver includes a space-saving switching power supply that automatically adapts to changes in mains voltage. Unlike bulky linear power supplies, this switching power supply is lightweight and compact; it uses only a single outlet space.

ATW-T201 UniPak body-pack transmitter

The versatile ATW-T201 UniPak body-pack transmitter has both a high-impedance input for instruments, and a low-impedance input with bias connection for use with dynamic and electret condenser microphones. The ATW-T201 uses internal 9-volt batteries and has an Off/Standby/On switch, input Trim (level) adjustment, and battery-save switch.

Cardioid Condenser Lavalier Microphone

This clip-on Lavalier microphone provides crisp, full-sounding voice pickup. It also excels as an instrument mic, especially for pickup of acoustic guitar. The mic is ideal for higher SPL applications, such as pickup for horns. Excellent gain before feedback and suppression of background noise. Operates on phantom power only. Has a 55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak wireless systems and includes clothing clip and windscreen.

Advanced dipole antenna system for extended operating range 
Power, RF, and AF Peak indicators
Volume control, 1/4" output jack and space-saving power supply
Rugged unidirectional dynamic element on handheld microphone/transmitter
Variable microphone trim control and easily accessible On/Standby/Off switch on transmitters
Professional locking connector on UniPak body-pack transmitter

Cardioid Condenser Lavalier Microphone
Clip-on lavalier mic also excels in acoustic guitar applications
Provides crisp, full-sounding voice and instrument pickup
Excellent gain before feedback and suppression of background noise
Operates on phantom power only
55" (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak wireless systems
includes clothing clip and windscreen only
Overall System 
VHF high band, 169MHz to 172MHz
Number of channels: Fixed
Frequency Stability: ±0.005%
Modulation Mode: FM
Normal Deviation: ±15kHz
Operating Range: 200' typical
Operating Temperature Range: 40 F (4 C) to 110 F (43 C)
Frequency Response: 80Hz to 13kHz

ATW-R250 receiver
Receiving System: Non-diversity, single-channel, dual antenna system
Image Rejection: >50dB minimum
Signal-to-Noise Ratio: 80dB at 10kHz deviation (A-weighted), maximum modulation 15kHz
Total Harmonic Distortion: <1% (±10kHz deviation at 1kHz)
Sensitivity: 20 dBuV, (S/N 60dB at 5kHz deviation, A-weighted)
Audio Output (balanced): 350 mV (at 1kHz, ±10kHz deviation, 100K ohm load)
Output Connector: 1/4" TS ("mono") phone jack
Power Supply: 100-240V AC (50/60 Hz) to 12V DC 1A (center positive) switched mode external power supply
Dimensions (W x H x D): 7.48" x 1.65" x 5.12, (190.0 x 42.0 x 130.0 mm)
Net Weight: (without batteries) 11.0 oz. (311 grams)
Accessories Included: Power supply

ATW-T201 Body-pack transmitter
RF Power Output: 0 mW High position, 2 mW Low position, typical
Spurious Emissions: Under federal regulations
Dynamic Range: >=90 dB, A-weighted
Input Connections: High impedance, low impedance, bias
Battery (not included): 9V (NEDA type 1604) alkaline, not included
Current Consumption: 30 mA typical
Battery Life: Approximately 15 hours in high position; approximately 8 hours in low position, (depending on battery type and use pattern)
Dimensions (W x H x D): 2.56" x 4.33" x 1.00", (65.0 x 110.0 x 25.4 mm)
Net Weight (without batteries): 2.8 oz (78 grams)

Cardioid Condenser Lavalier Microphone
Element: Fixed-charge back plate, permanently polarized condenser
Polar pattern: Cardioid
Frequency response: 40-16,000 Hz
Open circuit sensitivity: -42 dB (7.9 mV) re 1V at 1 Pa
Impedance: 250 ohms
Maximum input sound level: 141 dB SPL, 1 kHz at 1% T.H.D.
Dynamic range (typical): 112 dB, 1 kHz at Max SPL
Signal-to-noise ratio: 65 dB, 1 kHz at 1 Pa
Phantom power requirements: 11-52V DC, 2 mA typical
Switch: Flat roll-off
Weight: 0.1 oz (2.8 g)
Dimensions: 0.98" long x 0.40" diameter, (24.8 mm long x 10.2 mm diameter
Cable: 55" (1.4 m) 2-conductor, two-conductor shielded cable with TA3F output connector
Accessories furnished: clothing clip; windscreen
Questions & Answers View All
See All Audio-Technica Lavalier Microphone Wireless Systems

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