903E - by Telex

903E

  • Sound Quality

  • The 903E electret microphone is designed for use in high-noise environments where speech intelligibility is desired. The electret element virtually eliminates EMI, RFI and magnetic signals channeling the full power of your communications system into crisp, articulate voice transmission with the RTCA frequency response.
  • Highly Reliable

  • The microphone was designed to withstand the wear and tear that comes with consistent use. The microphone's proven electret technology will not decay or deteriorate in any way over extended periods of use.
  • Ease of Use

  • The microphone is lightweight and features tailored voice response to make use easy for users.
  • FAA TSO Approval

  • The 903E microphone is approved for aviation use under FAA TSO C58A.

The Electro-Voice model 903E Electret handheld microphone is designed for use in high-noise environments where speech intelligibility is desired, such as in aircraft cockpits, passenger cabins, control towers, or terminal areas. The electret element virtually eliminates EMI, RFI and magnetic signals channeling the full power of your communications system into crisp, articulate voice transmission with the RTCA frequency response. The microphone is recommended for advanced technology air transports employing electronic flight instrumentation systems (glass cockpits). Its proven electret technology will not decay or deteriorate in any way over extended periods.

Specifications

Microphone Sensitivity 400 mV ±3 dB for 114 dB re 20 μ pascals
Mounting Blade Mount
FAA TSO Approvals C58a, Category B

Weight ~6.35 oz (180 g)
Microphone Type Close Talking Differential, Amplified Electret Condenser
Frequency Response 300 Hz – 5 kHz
Connector Type PJ-068 or XLR-4-12C
Warranty 3 years
Retracted ~12 in (30 cm)
Extended ~7.5 ft. (2.3 m)

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