David Clark Electret Mic M-7A
Part Number(s): 09168P-33, 11-04041
Documents
Unit of Measure Name:
Units
Internal Reference:
RX1-11-04041
Overview
| The Model M-7A is an Electret, noise-cancelling microphone designed to operate in place of carbon and amplified dynamic microphones. Provides clear, crisp voice transmission. It will not operate in circuits that do not supply a DC bias voltage. Most modern aviation communications equipment do supply this required voltage. If unsure, consult with your radio technical manual or with your local avionics shop. The microphone is designed and constructed from quality durable high strength ABS plastic as well as corrosion resistant metals meeting or exceeding the environmental, durability and interchangeability requirements of RTCA/DO-214. Fits all of David Clark Electret FLEX Boom Style Headsets |
Features
- Noise cancelling up to 25 db
- Replacement for David Clark Mic M-7A and M4
- Field Replacable
- Fits Flex Style Booms
Specifications
- Color: Lusterless Black
- Weight: Approximately 4.5 to 6.0 grams
- Impedance: 150 ohms + / - 20 ohms
- Distortion: 6% @ 114dB
- Frequency response: 100Hz to 10,000Hz
- Sensitivity at ground level: 86dB - 98dB @ 1.0 kHz / 94dB input
- Temperature range: -55C to +85C
- Noise canceling: Min 15dB Max 25dB
- Altitude compensation: 25,000ft
- Supply voltage: 9-28V dc
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