Here's why:
* FM Transmitter Operation: FM transmitters use a combination of oscillators, amplifiers, and modulators to generate and transmit a radio frequency (RF) signal. The modulation process involves changing the frequency of the carrier wave in accordance with the audio signal.
* Digital vs. Analog: Logic gates are digital components that work with binary signals (0s and 1s). FM transmission involves continuous, analog signals representing the audio.
* Signal Processing: While digital signal processing (DSP) techniques are used in modern radio equipment, including FM receivers, the core transmission process in an FM transmitter remains analog.
Where Logic Gates Might Appear:
* Control Circuits: Logic gates might be found in the control circuitry of an FM transmitter, handling tasks like:
* Switching between different power levels
* Activating/deactivating modules
* Monitoring and responding to certain conditions
* Digital Audio Processing: If the FM transmitter is part of a complex system with digital audio processing, logic gates might be involved in:
* Digital-to-analog conversion (DAC)
* Digital audio signal manipulation
Key Takeaway: While logic gates aren't directly involved in the core operation of FM transmitters, they might be used in related circuitry for control and digital signal processing.