Investigation of Aircraft Generated VLF Interference

Abstract

Reception distances of VLF/LF transmissions, on board the KC-135 aircraft, have been severely restricted by electromagnetic interference generated by the aircraft's equipment. This interference has prevented the accurate measurement of propagation data at distances greater than 1000 miles when using the aircraft's omnidirectional antenna. With the use of a directional loop antenna mounted on the aircraft's boom, reception distances of up to 6000 miles have been attained. The restriction of directionality prevents measurements along paths which are of great importance to the MEECN. The reduction of aircraft interference for VLF/LF reception is of paramount importance to the Air Force and the success of this segment of the Tri Service Propagation Program. This report describes the investigation of the VLF aircraft generated interference by RADC giving the characteristics of the noise in both the frequency and time domains.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA038300

Entities

People

  • Anthony Mlinar
  • Wayne Bonser

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Antennas
  • Directional
  • Electric Current
  • Electromagnetic Interference
  • Flux Density
  • Frequency
  • Loop Antennas
  • Magnetic Flux
  • Magnetic Flux Density
  • Measurement
  • Omnidirectional
  • Omnidirectional Antennas
  • Radiant Intensity
  • Time Domain
  • Voltage
  • Waveforms

Readers

  • Radio communications and signal processing.
  • Space/Atmospheric Physics.
  • Systems Analysis and Design