Abstract
This paper describes accuracy of field-strengths predicted by a computer program, Ele-MAP, which has been developed to draw automatically coverage maps of television transmitters. The program works under the Macintosh or the Windows circumstance and uses the topographical mesh data. It provides with field-strangths at a speclfied site. along a path or in an area. Messurements have been carried out in Nagoya to obtain field-strengths to be compared with the predictions. Satisfectory results are summarized as follows : 50% value of Measured/Calculated and variations of 10-50 and 50-90% are -4±4 dB and -5±4 dB at VHF and UHF television channels, respectively.
