THE USE OF GROUNDWAVE TRANSMISSION-LOSS AND INTELLIGIBILITY-TEST DATA TO PREDICT EFFECTIVE RANGE AND PERFORMANCE OF VHF MANPACK RADIOS IN FORESTS.
Special technical rept. no. 11,
STANFORD RESEARCH INST MENLO PARK CALIF
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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
- Radio Communications