Radar Definitions
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

'Fa' to 'Fq', 'Fr' to 'Fz'

False Alarm: The false reporting of a target produced by a spike of noise or clutter.

Fan Beam: A wide angle beam produced by a radar used for ground mapping or long range surveillance.

Fast Time Constant: Differentiator circuit in the first video amplifier that allows only the leading edges of target returns, no matter how small or large, to be used.

Feedback: The return of a portion of the output of a circuit to its input.

Feedhorn: A horn radiator used to feed a reflector.

Reflector and Feed-horn

FFT: Fast Fourier Transform.

Field Strength: The magnitude of a magnetic or electric field at any point, usually expressed in terms of ampere turns per meter or volts per meter. Sometimes called field intensity and is expressed in volts/meter or dBFv/meter. Above 100 MHz, power density terminology is used more often.

First Detector: See Mixer.

First Harmonic: The fundamental (original) frequency.

PC motherboard

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