INITIAL VHF PROPAGATION RESULTS USING XELEDOP TECHNIQUES AND LOW ANTENNA HEIGHTS

Abstract

An adaptation of the Xeledop technique for study of propagation problems associated with VHF manpack radios is described and the results of inital VHF propagation tests for several frequencies, polarizations, and terrains for low antenna heights are presented. Initial results show that the choice of frequency and antenna polarization has a significant effect on propagation in a situation similar to a possible employment of manpack radio sets. Vertical polarization was found to be superior for transmission of signals over open terrain; horizontal polarization was superior for the foliage- covered terrain of the tests. The effect of frequency was also examined and it was found that the type of terrain generally has less effect on the received signals as the transmission frequency is increased from 50 to 100 MHz. Future propagation studies and measurements using the Xeledop technique are suggested.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1966
Accession Number
AD0653609

Entities

People

  • K. L. Taylor
  • N. K. Shrauger

Organizations

  • SRI International

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Antennas
  • Classification
  • Consistency
  • Ecology
  • Foliage
  • Forests
  • Generators
  • Measurement
  • Plants
  • Polarization
  • Radiation Patterns
  • Radio Communications
  • Radio Equipment
  • Signal Generators
  • Test Equipment
  • United States
  • Vegetation

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.