Plain English Meaning

A wireless link that sends weather and flight information to the cockpit as digital data, so the pilot can see it on a screen instead of asking someone over the radio.

Full Definition

A digital communication system that transmits weather, flight, and operational information between ground stations and aircraft over a radio or satellite link, allowing data to be displayed in the cockpit rather than relayed by voice.

Context Anchor

Seen in aviation weather discussions, especially where aircraft observations are used to help build a picture of and above the .