DFD

digital frequency discriminator
ディジタル周波数弁別回路. 瞬間周波数測定用受信機. パルス傍受用の電子兵器受信機.
digital frequency discriminator; an intercept radio receiver; an electronic warfare; an IFM(instantaneous frequency measurement) receiver; e.g. measures the frequency of RF(radio frequency) signals in less tha

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