instantaneous frequency-indicating receiver

instantaneous frequency-indicating receiver

[¦in·stən¦tā·nē·əs ¦frē·kwən·sē ‚in·də‚kād·iŋ ri′sē·vər] (electronics) A radio receiver with a digital, cathode-ray, or other display that shows the frequency of a signal at the instant it is picked up anywhere in the band covered by the receiver.