AN/ARN-7

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Contents

Overview

Airborne automatic direction-finder. Gives automatic bearing indication of the direction of arrival of radio frequency energy. Also aural reception of CW, MCW or Voice on loop or antenna.


AN ARN-7.png


AN ARN-7-1.png


Images

AN ARN-7 Data.png

Technical Specification

Frequency Range
100kHz - 1.75 mHz
Antenna
Loop and sense antenna
Tuning
Remote manual
Sensitivity
40 mv./Meter
Selectivity
10 times resonant input for 6.3 kHz bandwidth
Power Source
100v 400 Cycles AC
Range
Accurate bearings to about 100 miles daytime. Subject to night effect errors.


Tubes

  • 2 - VT-166
  • 1 - VT-74
  • 4 - VT-86
  • 1 - VT-87
  • 2 - VT-93
  • 1 - VT-94
  • 1 - VT-96
  • 1 - VT-105
  • 2 - VT-109


Components

  • 1 - Radio Compass Unit
  • 2 - Radio Control Box
  • 1 - Indicator I-81
  • 1 - Indicator I-82
  • 1 - Relay BK-22