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en:principle [2018/10/28 05:35]
mb
en:principle [2018/10/29 19:17] (aktuell)
mb
Zeile 21: Zeile 21:
 ==== Superhet ==== ==== Superhet ====
 {{:​images:​grundlagen-superhet.jpg?​direct&​400 |}} {{:​images:​grundlagen-superhet.jpg?​direct&​400 |}}
-In the **[[wpen>​Superheterodyne_receiver|Superhet]]** oder Superheterodyne receiver, also known as single conversion receiver, the RF signal coming from the antenna is mixed with the signal of an oscillator in a mixer stage to generate an "​intermediate frequency"​ on a fixed frequency higher or lower then the original RF signal. As this frequency is fixed, filters ​ansd amplifier stages for this single frequency or easier to design ​with out the risk of distortion or unwanted signals. ​+In the **[[wpen>​Superheterodyne_receiver|Superhet]]** oder Superheterodyne receiver, also known as single conversion receiver, the RF signal coming from the antenna is mixed with the signal of an oscillator in a mixer stage to generate an "​intermediate frequency"​ on a fixed frequency higher or lower then the original RF signal. As this frequency is fixed, filters ​and amplifier stages for this single frequency or easier to design ​without ​the risk of distortion or unwanted signals. ​
  
 The intermediate frequency usually is amplified in several IF amplifier stages and finally fed to the demodulator,​ which generates the audible signal. The intermediate frequency usually is amplified in several IF amplifier stages and finally fed to the demodulator,​ which generates the audible signal.
en/principle.txt · Zuletzt geändert: 2018/10/29 19:17 von mb