AN/CRN-3

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Contents

Overview

Ground localization transmitter to provide azimuth guidance of aircraft for blind approach or instrument landing. This set has same components as AN/MRN-1 packed for air transport instead of installed in truck K-53.


Images

AN CRN-3.png


AN CRN-3-1.png

  1. Transmitter BC-751
  2. Modulator & Bridge BC-752
  3. Course Detector BC-754 (Portable)
  4. Field Intensity Meter BC-755


AN CRN-3-2.png

  1. Control Box BC-915
  2. Indicator Box BC-777
  3. Voltmeter IS-176
  4. Case CS-72
  5. Radio Set SCR-610


Images

AN CRN-3 Data.png


Technical Details

Frequency Range
108.3 - 110.3 mHz
Number of Crystals
3 or 6
Preset Frequencies (mHz)
108.3, 108.7, 109.1, 109.5, 109.9, 110.3
Antenna
5 Alford Loops in same horizontal plane
Tuning
Crystal
Power Supply
Power Unit PE-141 or 110volt 60 Cycles
Power Output
25 Watts
Range
75 Miles
Type of Signal
CW, MCW, Voice


Components

Radio Transmitter Equipment RC-107
Localizer Transmitter Equipment Consists of
Antenna Equipment RC-109
Radio Set SCR-610
Heater M-321
Maintenance Parts & Tools
Surveying Instrument
  • Crystal Unit DC-8
  • Voltmeter IS-175 (Balanced R.F.)
  • Voltmeter IS-176 (Unbalanced R.F.))