Telex 903E-2 Hand Mic with PJ-068 Plug Overview:

The Telex 903E-2 noise-canceling electret condenser handheld microphone is designed for clear, intelligible speech in high-noise aviation environments. It is suitable for aircraft cockpits, passenger cabins, control towers, and airport terminal areas.

The close-talking differential microphone helps reject surrounding noise while providing a tailored RTCA voice response for crisp, articulate communications. Its electret element is resistant to aircraft-generated magnetic fields and protected against EMI and RFI interference. The microphone is also recommended for advanced air transport aircraft equipped with electronic flight instrumentation systems and glass cockpits.

The Telex 903E-2 includes a PJ-068 plug and blade-style hanger bracket.

Telex 903E-2 aviation handheld microphone features:

• Noise-canceling, amplified electret condenser design
• Tailored voice response for high articulation per RTCA/DO-214A
• Designed for high-noise aviation environments
• Immune to aircraft-generated magnetic fields
• EMI and RFI protected
• Durable electret technology will not decay or deteriorate with extended use
• FAA TSO-C139a approved for aviation use
• Blade mount
• PJ-068 connector
• Includes blade hanger bracket
• Three-year warranty

Telex 903E-2 microphone technical specifications:

• Microphone type: Close-talking differential, amplified electret condenser
• Microphone element: Electret condenser
• Frequency response: 300 Hz to 5,000 Hz
• Impedance: Matches standard aircraft input circuitry
• Sensitivity at 1 kHz: -28 +/- 3 dBV/Pascal
• Output sensitivity: 400 mV +/- 3 dB at 114 dB SPL re 20 micropascals
• Total harmonic distortion and noise: 5% at 114 dB SPL between 350 Hz and 6 kHz; output increases at least 5 dB when input increases from 114 to 120 dB SPL at the response peak
• Power requirements: Per RTCA/DO-214A test circuit
• Current consumption: 1.5 mA to 6 mA
• Operating voltage: 8 VDC to 16 VDC
• Case material: Black ABS
• Connector: PJ-068
• Mounting: Blade mount
• Cord length: Approximately 12 inches retracted and 7.5 feet extended
• Dimensions: 3.6 x 2.4 x 1.4 inches (91.5 x 61.0 x 35.6 mm)
• Weight: Approximately 6.4 oz (181 g)
• FAA TSO approval: C139a
• Warranty: 3 years