Audio-Technica ATW-1821 1800 Series Dual Channel Camera Mount UHF Wireless System Band D

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The Audio Technica ATW-1821 Camera Mount UHF Wireless System includes the ATW-R1820 single-channel receiver, two ATW-T1801 UniPak body-pack transmitters and two omnidirectional lavalier microphones. T... Read More

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The Audio Technica ATW-1821 Camera Mount UHF Wireless System includes the ATW-R1820 single-channel receiver, two ATW-T1801 UniPak body-pack transmitters and two omnidirectional lavalier microphones. The ATW-1821 offers UHF reception of 996 user-selectable frequencies in 25 kHz steps. The ATW-1821 also features automatic frequency scanning, Tone Lock squelch, back-lit LCD, soft-touch buttons, headphone monitor output with independent level control, and durable metal construction. Audio-Technica's ATW-1821 camera-mount wireless microphone system provides an extremely flexible, professional, and easy-to-use portable wireless solution.

ATW-R1820 single-channel receiver

The ATW-R1820 dual receiver has two completely independent receiver channels in a single unit. Dual balanced outputs enable signals to be mixed, or independently assigned to each output. Independent audio level controls provide flexible audio mixing and monitoring possibilities.

ATW-T1801 UniPak body-pack transmitter

The ATW-T1801 UniPak body-pack transmitter features a professional locking 4-pin connector compatible with all Audio-Technica Wireless Essentials microphones. The ATW-T1801 transmitter offers selectable high and low transmission modes to conserve battery life/maximize power.

Omnidirectional Condenser Lavalier Microphone

The Omnidirectional Condenser Lavalier Microphone is designed to be worn as a lavalier or hidden in loose clothing or in the hair. The wide-range capability of the Omnidirectional lavalier microphone ensures clean, accurate reproduction for lecturers, stage/TV performers and singers. It is terminated with locking 4-pin connector for the Audio Technica A-T UniPak body-pack wireless transmitter. Has a 55" (1.4 m) cable and includes a windscreen and clothing clip.

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:

  • System
  • Two completely independent receiver channels in a single unit, for simultaneous operation of two microphones
  • Compact dual receiver is easy to mount on a camera
  • True Diversity operation for resistance to multi-path interference and dropouts
  • UHF reception with 996 frequencies selectable in 25 kHz steps
  • Automatic frequency scanning for easy selection of open channels
  • Tone Lock squelch system eliminates interference when transmitter is off
  • Two independent balanced outputs
  • Headphone monitor output with independent level control
  • Battery fuel-level indicators on transmitters and receiver
  • Soft-touch controls for easy frequency selection
  • LCD frequency and battery status display with backlight
  • Antenna and AF Peak LED indicators
  • Dual-channel receiver can operate in single-receiver mode to extend battery life when only one audio channel is in use
  • Transmitters operate in low or high transmission modes to conserve battery life/maximize power
  • Easy, user-friendly operation
  • Clear, natural sound quality
  • Powered by AA batteries or by external 12V DC power (not included)
  • System components of the 1800 Series and 3000 Series Wireless Systems can be used interchangeably
  • Omnidirectional Condenser Lavalier Microphone
  • Small size provides excellent yet unobtrusive sound pickup
  • High intelligibility for lecturers, stage/TV performers and singers
  • Wide-range capability ensures clean, accurate reproduction
  • Overall System
    UHF Operating Frequencies: Band C: 541.500 to 566.375 Mhz; Band D: 655.500 to 680.375 MHz
    Number of Operating Frequencies: 996 total per band (25 kHz increments)
    Frequency Stability: ±0.005%, Phase Lock Loop frequency control
    Modulation Mode: FM
    Normal Deviation: ±10 kHz
    Operating Range: 300' (100 m) typical
    Operating Temperature Range: 23 F (- 5 C) to 113 F (45 C)
    Frequency Response: 70 Hz to 15 kHz

    ATW-R1820 Dual-channel receiver
    Receiving System: Dual independent RF sections, automatic-switching diversity
    Image Rejection: >50 dB typical
    Signal-to-Noise Ratio: 104 dB at 30 kHz deviation (A-weighted), maximum modulation 37 kHz
    Total Harmonic Distortion: <1% (±10 kHz deviation at 1 kHz)
    Sensitivity: 25 dBuV, (S/N 60 dB at 5 kHz deviation, A-weighted)
    Audio Output (balanced): 27 mV (at 1 kHz, ±5 kHz deviation)
    Output Connector: 3-pin mini XLR (TA3M-type)
    Monitor Headphone Output (typical): 35 mW max., 32 ohm load
    Monitor Headphone Jack: 3.5 mm TRS, signals on both Tip and Ring
    External Power Requirements: 12V DC nominal, 500 mA
    Batteries (not included): six 1.5V AA alkaline (not included)
    Current Consumption (battery): 600 mA typical
    Battery Life: 6 hours typical, depending on battery type and use pattern
    Dimensions: 3.35" (85.0 mm) W x 5.24" (133.0 mm) H x 1.42 (36.0 mm") D
    Net Weight: (without batteries) 15.0 oz. (425 grams)
    Accessories Included: Two flexible UHF antennas; two 18" TA3F to XLRM
    output cables; belt pouch

    ATW-T1801 UniPak body-pack transmitter
    RF Power Output: High: 30 mW; Low: 10 mW, nominal
    Spurious Emissions: Under federal regulations
    Dynamic Range: >105 dB, A-weighted
    Input Connections: High impedance, low impedance, bias
    Batteries (not included): Two 1.5V AA alkaline
    Current Consumption: High: 180 mA; Low: 160 mA, typical
    Battery Life: Approximately 6 hours (High); 8 hours (Low), depending on battery type and use pattern
    Dimensions (W x H x D): 2.60" x 3.43" x 0.94" (66.0 x 87.0 x 24.0 mm)
    Net Weight (without batteries): 2.8 oz (80 grams)

    Omnidirectional Condenser Lavalier Microphone
    Element: Fixed-charge back plate, permanently polarized condenser
    Polar pattern: Omnidirectional
    Frequency response: 30-20,000 Hz
    Open circuit sensitivity: -34 dB (19.9 mV) re 1V at 1 Pa
    Impedance: 200 ohms
    Maximum input sound level: 131 dB SPL, 1 kHz at 1% T.H.D.
    Dynamic range (typical): 107 dB, 1 kHz at Max SPL
    Signal-to-noise ratio: 70 dB, 1 kHz at 1 Pa
    Phantom power requirements: 9-52V DC, 2 mA typical
    Weight: 0.05 oz (1.3 g)
    Dimensions: 0.62" long x 0.33" wide x 0.19" thick, (15.8 mm long x 8.5 mm wide x 5.0 thick mm)
    Output connector: Integral 3-pin XLRM-type
    Cable: 55" (1.4 m) 2-conductor, shielded cable with TA3F output connector
    Accessories furnished: clothing clip; windscreen
One year parts and labor warranty.

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