Atmospheric Effects and Interference in Point to Point Communication

Abstract

To explain the availability of radio signals at long distances from the transmitters, at frequencies UHF and above, the vertical symmetry, instead of horizontal symmetry, of radio refractivity of the troposphere has been suggested. Formation of thermal cells and their effect on radiowave propagation through troposphere has been numerically treated. It has been inferred that the instantaneous changes in the meteorological conditions in the thermal cell provide greater understanding of the tropospheric propagation characteristics.

Indexing terms:

• Radiowave propagation
• Thermal cell
• Radio refractivity