Working Party 3M (WP 3M) - Point-to-point and Earth-space propagation
WP 3M addresses radiowave propagation over point-to-point terrestrial paths and
Earth-space paths, both for wanted and unwanted signals. For terrestrial paths,
prediction methods are developed for both line-of-sight and over-the-horizon links,
taking into account the possible mechanisms that can give rise to fading and distortion
of the wanted signal. The resulting predictions, generally expressed in terms of a
statistical distribution of propagation loss or outage, provide vital information for
terrestrial link planning in the fixed service (FS).