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en:signal_processing [2021/04/17 13:58] – angelegt mben:signal_processing [2021/04/17 14:00] (aktuell) mb
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 ===== Bandwidth control ===== ===== Bandwidth control =====
-The term **[[selectivity]]** refers to the ability of a receiver to receive a signal next to another signal without interference or to separate two signal in very close neighborhood in the dial.+The term **[[selectivity]]** refers to the ability of a receiver to receive a signal next to another signal without interference or to separate two signals in very close neighborhood on the dial.
  
 In the shortwave range, the radio stations in the shortwave broadcast bands are located quite close to each other, usually with a channel spacing of 5 kHz. A transmitter in the next channel 5 kHz up or down to the desired frequency can strongly impair the signal, an unpleasant whistling tone will occur with a pitch of 5 kHz. On medium waves, this phenomenon is less a problem with a channel spacing of 9 kHz (internationally) or 10 kHz (in the USA), on VHF with a channel spacing of 50/100 kHz, adjacent channel interference is only a problem with extremely weak signals in the vicinity of a very strong signal "booming in". In the shortwave range, the radio stations in the shortwave broadcast bands are located quite close to each other, usually with a channel spacing of 5 kHz. A transmitter in the next channel 5 kHz up or down to the desired frequency can strongly impair the signal, an unpleasant whistling tone will occur with a pitch of 5 kHz. On medium waves, this phenomenon is less a problem with a channel spacing of 9 kHz (internationally) or 10 kHz (in the USA), on VHF with a channel spacing of 50/100 kHz, adjacent channel interference is only a problem with extremely weak signals in the vicinity of a very strong signal "booming in".
en/signal_processing.1618660725.txt.gz · Zuletzt geändert: 2021/04/17 13:58 von mb