precise frequency

precise frequency
A frequency requirement accurate to within one part in 1,000,000,000.

Military dictionary. 2000.

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  • Frequency-resolved optical gating — Frequency Resolved Optical Gating, plus couramment désigné par son acronyme FROG, est une méthode de mesure des impulsions lumineuses ultra brèves (de l ordre de la femtoseconde) par auto corrélation. Son principe repose sur un montage de type… …   Wikipédia en Français

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  • Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …   Wikipedia

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  • radio-frequency heating — ▪ physics Introduction       process of heating (heat) materials through the application of radio waves of high frequency i.e., above 70,000 hertz (cycles per second). Two methods of radio frequency heating have been developed. One of these,… …   Universalium

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