Time delay variations in HF propagation
Article first published online: 7 DEC 2012
This paper is not subject to U.S. copyright. Published in 1982 by the American Geophysical Union.
Volume 17, Issue 5, pages 1285–1299, September-October 1982
How to Cite
1982), Time delay variations in HF propagation, Radio Sci., 17(5), 1285–1299, doi:10.1029/RS017i005p01285., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 19 MAR 1982
- Manuscript Received: 13 NOV 1981
An experiment has been established to determine the range of environmentally induced fluctuations in the propagation of HF radio signals. Data are collected with a fully digitized system that is stablized with a cesium beam standard. Initial efforts have been directed toward monitoring at San Diego, California, the time of arrival of WWV transmissions from Fort Collins, Colorado, for the frequencies 5, 10, 15, and 20 MHz. Variations in these arrival times from 25 to 175 μs have been observed depending upon frequency, mode of propagation, time of day, and solar activity.