Q. In AM radio receiver, the oscillator frequency is

A
Incoming signal - 455 kHz
B
Incoming signal + 455 kHz
C
Equal to signal frequency
D
Equal to 455 KHz 5.
Solution:
  • In AM radio receiver, the oscillator frequency is incoming signal + 455kHz.
  • The local oscillator is the heart of the receiver.
  • It is the most critical circuit in the entire receiver because any drift or instability in the local oscillator will translate into drift and instability in the received signal.
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