TROPICAL PROPAGATION RESEARCH
Abstract
The Report Volume II is sequential to Final Report Volume I, which covered an extensive series of radio propagation measurements in a wet-dry (monsoon) tropical jungle in Central Thailand. In contrast, Volume II presents results of measurements in a tropical rain forest area in Southern Thailand. Radio path loss measurements have been conducted in the rain forest area at frequencies from 2 to 400 MHz, for antenna heights above ground from 7 to 120 feet, with both vertically and horizontally polarized transmitting antennas, and at a large variety of path ranges and configurations in the jungle vegetation. Also, this report includes results from jungle-to-air measurements at frequencies of 25, 50, 100, 250 and 400 MHz, generally with aircraft altitudes of about 500 feet. The results from a series of ground-to-ground measurements for paths of mixed proportions of forest and clearing are presented, along with a theoretical model for this type of propagation path. Finally, an attempt is made to summarize the general conclusions which can be drawn from the work thus far, and which may be useful to a wide variety of communications problems in tropical jungle environments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1969
- Accession Number
- AD0706232
Entities
People
- A. P. Murphy
- E. L. Patrick
- John J. Hicks
- L. G. Sturgill
Organizations
- ARCO