Effects of High Latitude Geophysical Events on VHF Aeronautical Navigation Aids.

Abstract

This study was initiated to experimentally determine what effect, if any, geophysical disturbances such as auroras, solar flares and magnetic storms have on VHF aeronautical navigation aids, in particular VOR, in high latitude regions. Recording VOR monitor stations were designed and assembled and subsequently installed at Ester Dome (Fairbanks VOR), Pedro Dome (Fairbanks VOR), and Hoonah (Sisters Island VOR). These monitor stations employed aircraft navigation receivers and antennas to duplicate, as much as possible, aircraft operating conditions. Continuous data were collected over a 10-1/2 month period. Radial course deviation and signal strength were recorded and compared with the geophysical data normally collected by the Geophysical Institute over the same period of time. No appreciable effects on short range navigation signals were produced by solar fluxes, magnetic storms, and substorms, auroras, or solar noise.

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1975
Accession Number
ADA018037

Entities

People

  • Ronald D. Rasmussen

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Grids
  • High Latitudes
  • Hyperbolic Navigation
  • Latitude
  • Magnetic Storms
  • Navigation
  • Radio Navigation
  • Solar Flares

Readers

  • Aerospace Test and Evaluation
  • Space/Atmospheric Physics.