Definition
The display screen on which a radar system shows returns from objects within its coverage area. It presents the position, distance, and movement of aircraft, weather, or terrain detected by the radar antenna.
Plain English
The screen a controller or pilot looks at to see what the radar is picking up.
Context Anchor
Seen in radar navigation and air traffic control discussions, especially when describing what a controller sees while providing radar service.
Derivation
From 'radar' (itself short for 'radio detection and ranging') plus 'scope,' from the Greek 'skopein' meaning 'to look at' or 'to view.' A radarscope is literally the device you look at to view radar information.
Why Pilots Care
Allows pilots to interpret radar returns for navigation, traffic separation, and weather avoidance.
Intuition Check
Do not read “scope” here as the general idea of range or extent. In this term, a scope is a viewing display—a screen for seeing radar information.
Example Sentence 1
The controller spotted the aircraft as a target on the radarscope and issued a vector around the weather.
Example Sentence 2
On the radarscope, the storm cell appeared as a large area of returns.