secondary frequency

  • 1Secondary frequency standard — In telecommunications, a secondary frequency standard is a frequency standard that does not have inherent accuracy, and therefore must be calibrated against a primary frequency standard. Secondary standards include crystal oscillators and… …

    Wikipedia

  • 2secondary frequency standard — antrinis dažnio standartas statusas T sritis automatika atitikmenys: angl. secondary frequency standard vok. Sekundärfrequenzstandard, m rus. вторичный стандарт частоты, m pranc. étalon secondaire de fréquence, m …

    Automatikos terminų žodynas

  • 3secondary frequency standard — antrinis dažnio etalonas statusas T sritis radioelektronika atitikmenys: angl. secondary frequency standard vok. Sekundärfrequenznormal, n rus. вторичный эталон частоты, m pranc. étalon secondaire de fréquence, m …

    Radioelektronikos terminų žodynas

  • 4Secondary surveillance radar — SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Secondary surveillance radar (SSR)[1] is a radar system used in air traffic control (ATC), that not only detects an …

    Wikipedia

  • 5Frequency standard — A frequency standard is a stable oscillator used for frequency calibration or reference. A frequency standard generates a fundamental frequency with a high degree of accuracy and precision. Harmonics of this fundamental frequency are used to… …

    Wikipedia

  • 6Secondary source — In library and information science, historiography and other areas of scholarship, a secondary source [ [http://www.lib.umd.edu/guides/primary sources.html Primary, Secondary and Tertiary Sources, UM Libraries] ] [… …

    Wikipedia

  • 7Secondary characters in Calvin and Hobbes — Bill Watterson s comic strip Calvin and Hobbes features a wide range of secondary characters. These range from his fellow students at school to monsters and aliens from Calvin s vivid imagination. Contents 1 Calvin s family 1.1 Calvin s father… …

    Wikipedia

  • 8Secondary neoplasm — A secondary neoplasm refers to any of a class of cancerous tumors that are either metastatic offshoots of a primary tumor, or apparently unrelated tumors that increase in frequency following certain cancer treatments, including chemotherapy or… …

    Wikipedia

  • 9guard frequency — An emergency VHF/UHF (very high frequency/ultrahigh frequency) channel monitored as a secondary frequency by all air and ground stations in a geographical area. The guard frequencies 121.5, 243 and 406 MHz are reserved around the world and are… …

    Aviation dictionary

  • 10Low-frequency oscillation — The term low frequency oscillation (LFO) is an audio signal usually below 20 Hz which creates a pulsating rhythm rather than an audible tone. LFO predominantly refers to an audio technique specifically used in the production of electronic music.… …

    Wikipedia