- stable radio frequency
- Abbreviation: srf
Универсальный русско-английский словарь. Академик.ру. 2011.
stable radio frequency
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Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… … Wikipedia
Superconducting Radio Frequency — (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra low electrical loss of the superconductor yields RF resonators with extremely high quality factors, or Q . For example, it… … Wikipedia
Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… … Wikipedia
Frequency synthesizer — A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie… … Wikipedia
radio — /ray dee oh /, n., pl. radios, adj., v., radioed, radioing. n. 1. wireless telegraphy or telephony: speeches broadcast by radio. 2. an apparatus for receiving or transmitting radio broadcasts. 3. a message transmitted by radio. adj. 4. pertaining … Universalium
Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… … Wikipedia
Radio-controlled aircraft — A radio controlled aircraft (often called RC aircraft or RC plane) is a model aircraft that is controlled remotely, typically with a hand held transmitter and a receiver within the craft. The receiver controls the corresponding servos that move… … Wikipedia
Frequency multiplier — A frequency multiplier is commonly used in a radio receiver or radio transmitter to multiply the base frequency of the oscillator by a predetermined number. This multiplied frequency is then amplified and sent to the final drive stage and into… … Wikipedia
Radio-controlled helicopter — Nitro powered Align T Rex 600 NSP Electric powered Venom Ai … Wikipedia
Radio haute fréquence — Haute fréquence Le domaine des Hautes Fréquences (High Frequencies en anglais, abrégé en HF), désigne les ondes radio dont la fréquence est comprise entre 3 MHz et 30 MHz. Elles sont également appelées « ondes décamétriques » … Wikipédia en Français
Frequency-locked loop — A frequency lock, or frequency locked loop (FLL), is an electronic control system that generates a signal that is locked to the frequency of an input or reference signal. This circuit compares the frequency of a controlled oscillator to the… … Wikipedia
