Abstracts of Technical Articles from Bell System Sources (01 July 1938)

And LOYD E. HUNT. The continuous records of the field strength received over a 60-kilometer path on a frequency of 150 megacycles for the year 1936 are analyzed. Preliminary comparison with other paths of the same length indicate that the magnitude of the recorded variations of the signals m a y be typical of paths of this length. 

A reduction in the path length by a factor of two reduced the fading range in decibels by a factor of five. The results are found to be in agreement with an earlier formula. Fading reduced the field 7 decibels below the average value 1 per cent of the time.