Beyond-the-Horizon VHF Communication Using Man-Made Ionospheric Scatterers

Abstract

The report summarizes the design of a communications circuit using the man-made ionospheric scatterers and the characteristics of VHF signals propagated over such a circuit. It represents a compilation of experimental data obtained during field exercises in which communications were established between terminals separated 1400 km and 2200 km. The scattering cloud was located 1000-1200 km from both transmitter and receiver terminals. The report summarizes the requirements of an ionospheric heater and describes the characteristics of the disturbance itself. These characteristics include observed radar cross section as a function of time of day, amount of heater radiated power, and heater modulation.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1974
Accession Number
ADA003641

Entities

People

  • John F. Mclaughlin
  • Roy A. Sasselli

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Altitude
  • Antenna Arrays
  • Bandwidth
  • Colorado
  • Communication Systems
  • Communications Techniques
  • Data Transmission
  • Databases
  • Diversity Reception
  • Electron Density
  • Equations
  • Ionosondes
  • Ionosphere
  • Measurement
  • Modulation
  • Scattering
  • Teleprinters

Readers

  • Radar Systems Engineering.
  • Radio communications and signal processing.
  • Thermal Physics or Thermal Science.