Measurements on the satellite-mobile channel at L and S bands

An experiment is described in which measurements are made on the satellite-mobile channel at L and S bands. A light aircraft carrying a c.w. beacon is flown at elevation angles of 40, 60 and 80 degrees to a mobile receiver. The signal strength at the mobile is recorded in open, urban, suburban and tree shadowed environments. This data is then analyzed to produce statistics for the channel with respect to frequency, elevation angle, and environment. Results are presented together with a brief discussion, suggested interpretation, and conclusion.