Why is the Local Oscillator Frequency Always Higher Than the Signal Frequency? Introduction to Local Oscillators and Signal Frequencies In communication systems, understanding the interaction between local oscillators and signal frequencies is crucial. A local oscillator (LO) is an electronic oscillator used to generate a frequency that, when mixed with the incoming signal frequency, facilitates …
RF communication
Why the Local Oscillator Frequency is Always Higher Than the Signal Frequency Introduction to Local Oscillators and Signal Frequencies Local oscillators (LOs) play an essential role in the realm of radio frequency (RF) communication systems. To grasp their significance, it is crucial to first understand what a local oscillator is and its primary function. A …