radio-frequency amplification

См. также в других словарях:

• radio-frequency amplification — noun : amplification of current of radio frequency that in receiving sets is in the stages preceding the detector …   Useful english dictionary

• Radio receiver design — is a complex topic which can be broken down into a series of smaller topics. A radio communication system requires two tuned circuits each at the transmitter and receiver, all four tuned to the same frequency. [Cheney, M., Uth, R., Glenn, J.… …   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

• Radio Fréquence — Onde radio Une onde radioélectrique (dite onde radio) est une onde électromagnétique dont la fréquence est inférieure à 3 000 GHz, soit une longueur d onde supérieure à 0,1 mm. Sommaire 1 Définition et réglementation 2 Spectre… …   Wikipédia en Français

• Radio fréquence — Onde radio Une onde radioélectrique (dite onde radio) est une onde électromagnétique dont la fréquence est inférieure à 3 000 GHz, soit une longueur d onde supérieure à 0,1 mm. Sommaire 1 Définition et réglementation 2 Spectre… …   Wikipédia en Français

• Crystal radio — Crystal set redirects here. For the Australian rock band, see The Crystal Set. A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sliding contact (right) up and down the tuning coil (red). The device… …   Wikipedia

• Antique radio — DIORA AGA RSZ 50 ca.1947 from Poland An antique radio is a radio receiving set that is collectible because of its age and rarity. Although collectors may differ on the cutoff dates, most would use 50 years old, or the pre World War II Era, for… …   Wikipedia

• Intermediate frequency — In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier… …   Wikipedia

• Antenna (radio) — Whip antenna on car …   Wikipedia

• Amateur radio repeater — An amateur radio repeater is an electronic device that receives a weak or low level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. Many repeaters are… …   Wikipedia

• Software-defined radio — A Software Defined Radio (SDR) system is a radio communication system where components that have typically been implemented in hardware (i.e. mixers, filters, amplifiers, modulators/demodulators, detectors. etc.) are instead implemented using… …   Wikipedia