What Is Refractivity Gradient?

Radio Refractivity Gradient (RRG) Multipath fading occurs as a result of signal encountering an obstacle leading to different paths before getting to the target. This problem leads to interference along the propagation of signals in the troposphere.

What is radio Refractivity?

Radio refractivity prediction is an application of science and technology. Engineers predict the state of the atmosphere at any given location for the planning and design of a radio link system. They calculate the radio refractivity using meteorological data, i.e., the temperature, pressure and humidity.

How do you calculate Refractivity?

Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v.