LF and MF propagation: The effect of earth curvature on sea gain
Abstract
If a low frequency (LF) or medium frequency (MF) aerial is situated near the sea, the strength of sky-wave signals is increased by sea gain. It is shown that earth curvature has a significant effect at LF and MF on sea gain at coastal sites but has less influence on the reduction of sea gain which occurs when an aerial moves inland or when the sea is of limited extent.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1976
- Bibcode:
- 1976STIN...7621364K
- Keywords:
-
- Amplification;
- Ocean Surface;
- Transmitters;
- Wave Propagation;
- Antenna Radiation Patterns;
- Earth Surface;
- Geodesy;
- Low Frequencies;
- Telecommunication;
- Communications and Radar