Accession Number : AD0685632

Title :   AMPLITUDE SCINTILLATION AT RANDLE CLIFF DERIVED FROM ATS-1 TRANSMISSIONS,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Goodman,John M. ; Blundy,John E.

Report Date : 17 MAR 1969

Pagination or Media Count : 63

Abstract : An amplitude scintillation analysis of vhf radiowave transmissions from the geostationary satellite ATS-1 has been conducted. It has been found that the amplitude scintillation activity is generally less intense during the day than during nocturnal hours. In fact, the present 1967 summertime data indicate that the full scintillation condition is 50% more likely to occur during nighttime than during the day over Randle Cliff. The data have been compared with the Fort Belvoir ionosonde data, and, as expected, point-to-point correlations are inconclusive. Nevertheless, the trend of the data compares more favorably with the diurnal pattern of sporadic E over midlatitudes than the spread F condition. (Author)

Descriptors :   (*SCIENTIFIC SATELLITES, RADIO WAVES), (*RADIO WAVES, SCINTILLATION), SYNCHRONOUS SATELLITES, VERY HIGH FREQUENCY, DISTORTION, DIURNAL VARIATIONS

Subject Categories : Unmanned Spacecraft
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE