intermediate frequency strip

См. также в других словарях:

• Superheterodyne receiver — A 5 tube superheterodyne receiver made in Japan around 1955 In electronics, a superheterodyne receiver (sometimes shortened to superhet) uses frequency mixing or heterodyning to convert a received signal to a fixed intermediate frequency, which… …   Wikipedia

• Transformer — This article is about the electrical device. For the toy line franchise, see Transformers. For other uses, see Transformer (disambiguation). Pole mounted distribution transformer with center tapped secondary winding. This type of transformer is… …   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

• Channel 1 — In North America, channel 1 is a former broadcast (over the air) television channel (44–50 MHz, with visual at 45.25 and aural at 49.75). History When the U.S. Federal Communications Commission initially allocated broadcast television frequencies …   Wikipedia

• Chrominance — (chroma or C for short) is the signal used in video systems to convey the color information of the picture, separately from the accompanying luma signal (or Y for short). Chrominance is usually represented as two color difference components: U =… …   Wikipedia

• PALplus — is an extension of the PAL analogue broadcasting system for transmitting 16:9 programs without sacrificing vertical resolution. It followed experiences with the HD MAC and D2 MAC, standards that were incompatible with existing receivers but… …   Wikipedia

• If — is a very common English word used in the protasis of a conditional sentence and the antecedent of a proposition. It is often used in computer languages to indicate a conditional.If is also * If (island), a small island in the Bay of Marseille,… …   Wikipedia

• nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

• Military Affairs — ▪ 2009 Introduction        Russia and Georgia fought a short, intense war in 2008, fueling global fears of a new Cold War. On August 7 Georgia launched an aerial bombardment and ground attacks against its breakaway province of South Ossetia.… …   Universalium

• cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …   Universalium

• keyboard instrument — ▪ music Introduction       any musical instrument on which different notes can be sounded by pressing a series of keys, push buttons, or parallel levers. In nearly all cases in Western music the keys correspond to consecutive notes in the… …   Universalium