Part #: 270

Model: NAT270

Cobham - Universal Interface Amplifier
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  • Universal Interface Amplifier
  • Provides multipurpose amplification and switching functions for varying radio, microphone, and custom audio interface needs
  • Can be used as a primary amplifier for an aircraft or vehicle operator station or it can be used as an auxiliary amplifier for interface or other applications
  • Audio, MIC, and Spare Input channels
  • Serves as a mobile/FM radio-audio interface
  • Primary amplifier for and aircraft or vehicle operator station
  • Deployable as an auxiliary amplifier for interface to other applications
  • Mobile/FM radio interface
  • Floating key lines
  • RX & Sidetone amplifier
  • Floating audio lines in and out
  • Mic amplifier with adjustable output
  • Selectable functions and levels
  • Includes VOX and 1 pin for VOX control


Isolation & Crosstalk: ≤ -70 dB (-80 dB typical) Noise: <-80 dB (-80 dB typical)
Total Harmonic Distortion (THD+N): <1% (typical)  Frequency Response: Flat to within 3 dB from 300 Hz to 6000 Hz
Power: 28 VDC nominal, 0.25A (max) Operating Temperature: -55° to +70° C
Vibration & Shock: Tested to RTCA DO-160D Categories T and U. Category T (Curve R) test extended from 250 to 2,000 Hz. Shock tested to 20g while operating.  Altitude: -15,000 to 70,000 ft
Enclosure Finish: Chromate Film in accordance with MIL-C-5541 Weight: 0.40 lbs
Dimensions: 2.50 " D x 4.50" W x 1.375" H Environmental: RTCA DO-214 and DO-160D ENV. CAT. [(A2)(F2)]BBB[TU]XXXXXXZ[BZ]AZAUM[XXC2]XXA
Part Number: Description:
        270 Universal Interface Amplifier w/VOX 


- Universal Interface Amplifier
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