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en:prinzip [2021/04/16 13:06]
mb
en:prinzip [2021/04/16 13:11] (aktuell)
mb
Zeile 42: Zeile 42:
 A typical intermediate frequency often used in domestic radios is 455 kHz. A typical intermediate frequency often used in domestic radios is 455 kHz.
  
-==== double-superhet ====+==== Double conversion ​superhet ====
 {{:​images:​grundlagen-doppelsuperhet.jpg?​direct&​400 |}} {{:​images:​grundlagen-doppelsuperhet.jpg?​direct&​400 |}}
 Since receiver developers when deciding about the intermediate frequency always have to find a compromise between the risk of mirror frequencies appearing (the appearance of a double of a strong signal as a "ghost station"​ in the wrong place on the dial should be prevented) and selectivity,​ the principle of the **double conversion superhet** or **double conversion** is used in high-quality receivers. Since receiver developers when deciding about the intermediate frequency always have to find a compromise between the risk of mirror frequencies appearing (the appearance of a double of a strong signal as a "ghost station"​ in the wrong place on the dial should be prevented) and selectivity,​ the principle of the **double conversion superhet** or **double conversion** is used in high-quality receivers.
en/prinzip.1618571174.txt.gz · Zuletzt geändert: 2021/04/16 13:06 von mb