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Line + Gradient Condenser Microphone

AT897
  • Designed for video production and broadcast (ENG/EFP) audio acquisition
  • Short length (279mm) ensures mic stays out of the shot - even when used with compact digital cameras
  • Smooth, natural-sounding on-axis audio quality
  • Provides the narrow acceptance angle desirable for long-distance sound pickup
  • Excellent sound rejection from the sides and rear of mic
  • Switchable low-frequency roll-off
  • Operates on battery or phantom power

    The AT897 requires 11V to 52V DC phantom power or a 1.5V AA battery for operation. A battery need not be in place for phantom power operation.

    Output from the microphone’s XLRM-type connector is low impedance (Lo-Z) balanced. The signal appears across Pins 2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot” – positive acoustic pressure produces positive voltage at Pin 2.

    An integral 80 Hz high-pass filter provides easy switching from a flat frequency response to a low-end roll-off. The roll-off position reduces the pickup of low-frequency ambient noise (such as traffic, air-handling systems, etc.), room reverberation and mechanically coupled vibrations.

    The microphone is RoHS compliant–free from all substances specified in the EU directive on hazardous substances.



    • audio technica AT897

    • AT897 Specifications

    Element

    Fixed-charge back plate, permanently polarized condenser
    Polar Pattern

    Line + gradient
    Frequency Response

    20 ~ 20,000 Hz
    Low Frequency Roll-Off

    80 Hz, 12 dB/octave
    Open Circuit Sensitivity

    Phantom: -40 dB (10.0 mV) re 1V at 1 Pa Battery: -41 dB (8.9 mV) re 1V at 1 Pa
    Impedance

    Phantom: 200 Ω
    Battery: 300 Ω
    Maximum Input Sound Level

    Phantom: 129 dB SPL, 1 kHz at 1% T.H.D. Battery: 115 dB SPL, 1 kHz at 1% T.H.D.
    Dynamic Range (Typical)

    Phantom: 112 dB, 1 kHz at Max SPL Battery: 98 dB, 1 kHz at Max SPL
    Signal-To-Noise Ratio

    77 dB, 1 kHz at 1 Pa

    Phantom Power

    11~52V DC, 2 mA typical
    Battery Type

    1.5V AA/UM3
    Battery Current / Life

    0.4 mA / 1200 hours typical (alkaline)
    Switch

    Flat, roll-off (recessed)
    Weight

    145 g
    Dimensions

    21mm X 279mm (Diameter X Long)
    Output Connector

    Integral 3-pin XLRM-type
    Accessories Furnished

    AT8405a stand clamp for ⅝”-27 threaded stands;
    AT8134 foam windscreen;
    ⅝”-27 to ⅜”-16 threaded adapter;
    battery; protective carrying case

    Download

    audio technica support 144_1_AT897.pdf - Operation Manual
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