Sunday, 5 May 2024, 10:24 AM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Electronics (Mike Jaroch)
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RANGE MARKER

A movable vertical pulse on an A-scope or a ring on a PPI scope used to measure the range of an echo or to calibrate the range scale [18].

RANGE RESOLUTION

Ability of a radar to distinguish between targets that are close together [18].

RANGE STEP

On an A-scope sweep, a vertical displacement used to measure the range of an echo [18].

RANGE-GATE

A movable gate used to select radar echoes from a very short range interval [18].

RANGE-HEIGHT INDICATOR

A radar display on which slant range is shown along the X axis and height along the Y axis [18].

RANGES

The several upper limits a meter will measure as selectable by a switch or by jacks; for example, a voltmeter may have ranges of 1 volt, 2.5 volts, 10 volts, 25 volts, and 100 volts [3].

RAREFIED WAVE

A longitudinal wave that has been expanded or rarefied (made less dense) as it
moves away from the source [10].

RATE GYRO

A gyro used to detect and measure angular rates of change [15].

RATIO

The value obtained when one number is divided by another. This value indicates the relative proportions of the two numbers [2].

RATIO DETECTOR

A detector that uses a double-tuned transformer to convert the instantaneous
frequency variations of the FM input signal to instantaneous amplitude variations [12].