ON VARIATIONS IN THE PHASE VELOCITY OF VERY LOW FREQUENCY SIGNALS OBSERVED IN NEW ZEALAND.
Abstract
Observations of changes in the phase delay of VLF signals from GBR, NBA and NPG have been made in New Zealand. The phase reference signal is provided by Essen ring oscillators of high stability. The observed changes in phase delay due to diurnal variation of path illumination, interference between signals received over both the long and short great circle paths, interference between two or more modes propagating in the same direction, a solar eclipse, and interference between signals propagating simultaneously in the earth-ionosphere wave-guide and in magneto-ionic whistler ducts are described and discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 06, 1965
- Accession Number
- AD0615465
Entities
People
- A. H. Allan
- D. D. Crombie
- G. J. Burtt