Accession Number : AD0737340

Title :   Ionospheric Research Using Satellites.

Descriptive Note : Annual scientific rept. 1 Feb-31 Dec 70,

Corporate Author : NATIONAL COMMITTEE FOR SPACE RESEARCH HAIFA (ISRAEL) RADIO OBSERVATORY

Personal Author(s) : Mass,Jonathan ; Keroub,Israel ; Shuval,Abraham

Report Date : 31 JAN 1971

Pagination or Media Count : 21

Abstract : A new ray-tracing program for HF waves through the ionosphere is reported. First applications were made to the study of propagation of satellite signals perpendicularly to the earth's field. The change in the sense of polarization was also measured experimentally as the satellite moves through transverse propagation conditions. The pattern and gain of a 30 foot dish antenna was measured experimentally using navigation satellite transmissions on 400 MHz and compared to calculations based on the measurement of the illuminiation by the specially designed feed. (Author)

Descriptors :   (*IONOSPHERIC PROPAGATION, RADIO WAVES), NAVIGATION SATELLITES, HIGH FREQUENCY, POLARIZATION, ROTATION, MAGNETOOPTICS, ELECTRON DENSITY, ANTENNA RADIATION PATTERNS, RADIO TRANSMISSION, PROBABILITY, ISRAEL

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE