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Superheterodyne receiver

The superheterodyne receiver, commonly called the superhet, is a radio receiver that uses heterodyning to convert incoming radio-frequency (RF) signals to a fixed intermediate frequency (IF). The signal is then amplified and filtered at that fixed frequency. This arrangement separates tuning from most of the gain and filtering: the RF circuits make an…

History, Principle of operation & Overview

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Overview

History

Principle of operation

Multiple conversion

Modern designs

Advantages and disadvantages

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Map overview Semantic statistics

Superheterodyne receiver

Nodes85
Edges84
Triples80
Avg. degree1.98
Density0.023529
Components1

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Superheterodyne receiver

Top relations

related to External links · 34
Superheterodyne receiver → Alan, America, An, April, Archived, Armstrong, Bibcode, Champeix, Dec, Developments, Douglas, French, Heterodyne Receiver, Hogan, Inventé, IRE, John, Jr, La Liaison, Lévy
related to Advantages and disadvantages · 9
Superheterodyne receiver → As, By, Early, IF, It, Mixing, RF, The, These
related to Local oscillator and mixer · 9
Superheterodyne receiver → Early, For, Herold, In, LO, Modern IC, RF, The, Those
related to Why the superheterodyne displaced other technologies · 8
Superheterodyne receiver → By, Earlier, Higher-order, IF, RF, The, These, Up
related to Market acceptance · 5
Superheterodyne receiver → Although, David Sarnoff, Harry Houck, RCA, The
related to Modern designs · 4
Superheterodyne receiver → FM, IF, Microprocessor, This
related to Principle of operation · 3
Superheterodyne receiver → By, One, The

Important terminology Word statistics

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Important terminology

frequency superheterodyne receiver receivers oscillator signal selectivity rf local gain intermediate tuned used frequencies signals conversion also stages mixer amplification

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Crosleyinstance ofCrystal detector receivers provided rectification without gain and were widely used in inexpensive sets produced by companies0.80text
the screen-grid tetrode were incorporated into superheterodyne receiversinstance ofimproved vacuum tubes0.80text
further improving gaininstance ofimproved vacuum tubes0.80text
stabilityinstance ofimproved vacuum tubes0.80text
the All American Five proliferated as the superheterodyne became the standardinstance ofLow-cost superheterodynes0.80text
NTSCinstance ofas used in systems0.80text
first standardized in the United States in 1941.By the 1980sinstance ofas used in systems0.80text
multi-component LC filters were increasingly replaced by precision electromechanical surface acoustic waveinstance ofas used in systems0.80text
Superheterodyne receiverrelated to Advantages and disadvantagesBy0.60section
Superheterodyne receiverrelated to Advantages and disadvantagesIF0.60section
Superheterodyne receiverrelated to Advantages and disadvantagesEarly0.60section
Superheterodyne receiverrelated to Advantages and disadvantagesAs0.60section

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