Picture of product 339H-3

Part #: 622-0171-002

Model: 339H-3




Collins Aerospace


Radio Altimeter Indicator

Part Number :




  • Radio Altitude Indicator used with ALT-50 Radar Altimeter Systems
  • Provides visual display of aircraft height above terrain during approach phase of flight
  • Provides decision height selection and indication when aircraft descends to selected decision height
  • Self-test switch provided to test radar altimeter system, excluding antennas
  • Altitude scale of -20 to +2000 ft. designed to be used in fixed-wing aircraft applications
  • Models available with 5 or 28V dc blue-white lighting (see table below)


FAA TSO: C87 RTCA document: DO-138, DO-123
Functional Test Signal: Ground ARINC specification: 408
Altitude Range: -1000 to 50000 ft., Category D Dimensions: 3.375"W x 3.210"H x 4.50"L
Part Number: Description:
622-0171-001 28V dc blue-white lighting
622-0171-002 5V dc blue-white lighting


- Radio Altimeter Indicator

NSN: 5841-01-306-8407

Price Condition Status

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