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An acronym for RAdio Detecting And Ranging .
Airborne radar that measures the distance of the aircraft above the ground .
The space in front of a radar antenna where a target can be effectively detected or tracked. Defined by areas that contain half or more of the maximum power transmitted .
A detector that, in its simplest form, only needs to be capable of producing an
output when RF energy (reflected from a target) is present at its input .
RADAR DISTRIBUTION SWITCHBOARD
An electrical switching panel used to connect inputs from any of several radars to repeaters (indicators) .
Time interval (12.36 microseconds) for RF energy to travel out from a radar to a target and back to the radar; radar nautical mile .
RADAR TEST SET
A combination of several test circuits and equipment used to test various
characteristics of a radar .
The electromagnetic field that radiates from an antenna and travels through space .
The losses that occur when magnetic lines of force about a conductor are
projected into space as radiation and are not returned to the conductor as the cycle alternates .
A plot of the radiated energy from an antenna .