## Electronics (Mike Jaroch)

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### R

#### RADAR

An acronym for RAdio Detecting And Ranging [18].
 Keyword(s): RADAR

#### RADAR ALTIMETER

Airborne radar that measures the distance of the aircraft above the ground [18].
 Keyword(s): RADAR ALTIMETER

#### RADAR BEAM

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 [18].

 Keyword(s): RADAR BEAM

#### RADAR DETECTOR

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 [12].

 Keyword(s): RADAR DETECTOR

#### RADAR DISTRIBUTION SWITCHBOARD

An electrical switching panel used to connect inputs from any of several radars to repeaters (indicators) [18].

 Keyword(s): RADAR DISTRIBUTION SWITCHBOARD

#### RADAR MILE

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 [18].

 Keyword(s): RADAR MILE

#### RADAR TEST SET

A combination of several test circuits and equipment used to test various
characteristics of a radar [18].

 Keyword(s): RADAR TEST SET

#### RADIATION FIELD

The electromagnetic field that radiates from an antenna and travels through space [10].

 Keyword(s): RADIATION FIELD

#### RADIATION LOSSES

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 [10].

 Keyword(s): RADIATION LOSSES

#### RADIATION PATTERN

A plot of the radiated energy from an antenna [10].
 Keyword(s): RADIATION PATTERN

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