Rain fade

In satellite communications, rain fade refers to the absorption of a microwave Radio Frequency (RF) signal by rain or snow, and is especially prevalent in frequencies above 11 GHz. It also refers to the degradation of a signal caused by the electromagnetic interference of the leading edge of a storm front. Rain fade can be caused by rain or snow at the uplink or downlink location. It does not need to be raining at a location for it to be affected by rain fade. The signal may pass through rain or snow many miles away, especially if the satellite dish has a low look angle.