THE USE OF GROUNDWAVE TRANSMISSION-LOSS AND INTELLIGIBILITY-TEST DATA TO PREDICT EFFECTIVE RANGE AND PERFORMANCE OF VHF MANPACK RADIOS IN FORESTS.
Abstract
The effective range of a VHF manpack radio in a specified environment is a parameter of primary interest to the military user. There are several ways to define effective range. The purposes of this report are (1) to present a discussion of effective range that will lead to a useful and meaningful definition; (2) to discuss the use of transmission-loss data with radio-set data and various performance criteria in regard to effective range; and (3) to present some tentative conclusions about methods of planning for the use of VHF manpack radios in a tropical forest, based upon path-loss data taken in Panama during World War II and more recently in Thailand. A statistical definition of range with confidence bounds is proposed, based upon quality of operation, such as intelligibility scores. (Supplementary information on intelligibility tests is given in Appendix A.) (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1966
- Accession Number
- AD0672069
Entities
People
- George H. Hagn
Organizations
- SRI International