Solar Influences on HF Absorption and the Resulting Hawaii to California Lowest Observed Frequency.
Abstract
The theory of the absorption of high frequency (HF) radio waves is presented and used to determine the expected lowest observed frequency (LOF). Next, experimental LOFs obtained with an HF oblique incidence sounder receiver on the Hawaii-California propagation path are presented and compared with the absorption theory. The LOFs are also compared with the CNO predictions. The conclusions are that the LOF is not influenced appreciably by a varying component of background solar radiation, or seasonal changes, and that the LOF is a predictable quantity which closely follows the theory. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1970
- Accession Number
- AD0869932
Entities
People
- Max P. Bleiweiss
Organizations
- Naval Air Weapons Station China Lake