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    HD-68T Outdoor explosion-proof noise-cancelling pickups

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      Pointing characteristics: Omni-directional
      Indoor and outdoor: outdoor installation
      Shell material: metal shell
      Installation method: wall mounting, buried wall mounting
      Industry applications: judicial prisons, financial banks, public prosecution and l
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    • 产品尺寸

    1, specifically for outdoor squares, streets, army posts, military and police combat refers to military vehicles synchronized recording and video and tailored boutique design.

    2, the use of strong, durable and beautiful metal shell, surface plating treatment, away from the environment around the noise interference.

    3, a single structure in the integration of two complementary high-sensitivity capacitive microphone, broaden the pickup audio band, pick up the sound more clear and bright.

    4, waterproof, moisture-proof, dustproof performance, rainwater environment can work for 48 hours, in line with IP 54 standards.

    5, for the sound chaotic environment for special voice stimulation brightening processing, noise resistance to further improve the ability to speak clear and bright fidelity;

    6, professional automatic noise recognition processing technology and ALC control technology, DAP digital sound function, shielding environmental noise.

    7, high fidelity, high sensitivity, high bandwidth, low noise, built-in efficient exciter, the perfect combination of fashion and craftsmanship.

    8, automatic adjustment of high-intensity sound and instant impact sound, reliable protection of back-end audio monitoring equipment.

    9, streamline appearance design and metal sound filter protection network, effectively reduce road, car, environmental noise interference.

    10, ultra-long audio signal transmission technology, using RVVP2 × 1.5 mm2 shielded cable transmission 1 km without distortion.

    11, -40 ℃ ~ 75 ℃ super ambient temperature work to ensure that the back end of high-quality recording effects.

    12, integrated professional SMT audio processor, can directly drive active speakers, hard disk recorders, recorders, etc.

    Pickup range: 100 square
    Pickup head: advanced platinum recording omnidirectional head
    Pointing characteristics: Omni-directional
    Sensitivity: -38. dB (10.0 mV e 1V at 1 Pa)
    Signal to Noise Ratio:85 dB(1 kHz at 1 Pa)
    Distortion1:≧ 0.2% (74dB sound pressure, A-weighted)
    Distortion2:≧ 0.5% (110dB sound pressure, A-weighted)
    Maximum Sound Pressure:120dB Sound Pressure(1 kHz ≤ 3% THD, A-weighted.)
    Frequency Response:150Hz ~ 15kHz0020(90dB sound pressure, A-weighted)
    Audio output value: 2.5Vpp/85dB sound pressure (A-weighted)
    Signal processing: DSP noise reduction DSP noise reduction processing
    Dynamic range: 90 dB (1kHz at Max dB SPL)
    Audio output value: 2.5Vpp/100dB SPL
    Protection circuit: polarity protection, misconnection protection, lightning protection
    Connection: Three-wire system: power line (red), audio (white), common ground (black)
    Signal transmission: 3000 meters twisted pair, shielded cable (electromagnetic complex environment please use shielded cable)
    Electromagnetic compatibility:Compliant with GB 9254-2008
    Reliability index: MTNF≧80000hours
    Dimensions:134mm (length) × 70mm (diameter)
    Comply with the standard: in line with the standard EU CE standards, the United States FCC certification, the Supreme Court synchronous recording system construction specifications

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