Occupancy measurements across the entire HF spectrum
Abstract
The paper outlines the various aspects of a research program into the characteristics of interference at HF, and gives measured results of occupancy across the entire HF spectrum. These occupancy values are given for several thresholds, and for the different HF user frequency allocations, as defined by ITU regulations. They are presented for day and night conditions, at times of the year corresponding to the winter and summer solstices, for a period of high sunspot activity.
- Publication:
-
In AGARD Propagation Aspects of Frequency Sharing
- Pub Date:
- March 1983
- Bibcode:
- 1983pafs.agarR....G
- Keywords:
-
- Amplitudes;
- Electromagnetic Interference;
- High Frequencies;
- Signal Processing;
- Digital Systems;
- Frequency Assignment;
- Linearity;
- Solstices;
- Spectrum Analysis;
- Summer;
- Sunspots;
- Winter;
- Communications and Radar