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Что (кто) такое RF - определение
ELECTROMAGNETIC FREQUENCIES RANGING FROM 3 KHZ TO 300 GHZ
Radio frequencies; Radio Frequency; Radiofrequency; RF spectrum; Radio frequencies and wavelengths; Radio-frequency; Radio-frequency spectrum; RF stage; Radio Frequencies (table); RF signal; Radio frequemcy; Radio frequency spectrum; Rf wave; Wireless frequency; R.F.; R.f.; Rf.; R F; RF; RF energy; Radio-frequency communication; Radio frequency communication; Radio-frequency current; RF current
RF
WIKIMEDIA DISAMBIGUATION PAGE
Rf
Radio Frequency (Reference: mobile-systems)
Rf
WIKIMEDIA DISAMBIGUATION PAGE
Rf
¦ symbol the chemical element rutherfordium.
Radio frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies;A.
Википедия
Radio frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20 kHz to around 300 GHz. This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies; these are the frequencies at which energy from an oscillating current can radiate off a conductor into space as radio waves. Different sources specify different upper and lower bounds for the frequency range.
Примеры употребления для RF
1. The second officer, Mr RF White, who remained with Reed, was rescued from a raft.
2. At the gleaming new RF Brookes factory near Newport the scale of the shake–up becomes clear.
3. Privately–held Elcom works on advanced RF/microwave frequency sources and customized subsystems for commercial and defense industries.
4. "What is to prevent TOW 2A and RF bunker busters from being used against US and coalition forces?
5. The war–thirsty elements of the south Korean army let fly two or three RC–800s and RF–4Cs everyday to spy on the DPRK.