Accession Number:

AD0705227

Title:

VARIATIONS IN 2.2 MHz IONOSPHERIC ECHO STRUCTURE CORRELATED WITH HIGH POWER 4.5 MHz TRANSMISSIONS,

Descriptive Note:

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK IONOSPHERE RESEARCH LAB

Personal Author(s):

Report Date:

1970-04-01

Pagination or Media Count:

127.0

Abstract:

It has been shown experimentally that certain features of the ionospheric echo structure of 2.2 MHz pulses are correlated with the on-off time of a high power pulse transmitter operated at 4.5 MHz. Photographic and electronic data are presented which show examples in which the hf of the main echoes changed by a few kilometers with a characteristic time in the order of 10 to 60 seconds during the high power transmissions. A number of photographic records are also presented which show the abrupt appearance of sporadic E echoes during the high power intervals. A theoretical investigation into the possible cause for these experimental results is given. Author

Subject Categories:

  • Atmospheric Physics
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE