Audio-Technica ATW-251 Freeway VHF Lavalier Wireless System  

Product #275110

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This product has been discontinued but may be available as a Open Box item.

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See All Audio-Technica Lavalier Microphone Wireless Systems
Audio-Technica

Very affordable and very good.

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.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCCs wireless microphone website at: www.fcc.gov/cgb/wirelessmicrophones.

Features
  • 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
 

ATW-251 Freeway VHF Lavalier Wireless System Specifications:

  • 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
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