Draw a block diagram of frequency modulation VHF transmitter and explain the relevance of each block.

Block Diagram of Frequency Modulation VHF Transmitter

1. Audio Input:
- Receives audio signals from a source, such as a microphone or music player.

2. Modulator:
- Converts the audio signal into a deviation of the carrier frequency, creating an FM signal. The deviation is proportional to the amplitude of the audio signal.

3. Carrier Generator:
- Generates a stable VHF carrier frequency.

4. Frequency Multiplier:
- Multiplies the carrier frequency to achieve the desired output frequency within the VHF band.

5. Pre-emphasis:
- Boosts the high-frequency components of the audio signal to improve clarity and reduce noise.

6. Power Amplifier:
- Amplifies the FM signal to provide sufficient power for transmission.

7. Antenna:
- Radiates the FM signal into the air, enabling communication over distances.

Relevance of Each Block:

Audio Input:
- Converts analog audio into an electrical signal for processing.

Modulator:
- Creates the actual FM signal by varying the carrier frequency according to the audio signal.

Carrier Generator:
- Provides a stable reference frequency for the FM signal generation.

Frequency Multiplier:
- Stretches the carrier frequency to the desired VHF range.

Pre-emphasis:
- Enhances the high-frequency response of the audio signal for improved clarity and noise reduction.

Power Amplifier:
- Amplifies the FM signal to sufficient levels for transmission.

Antenna:
- Transmits the FM signal into the air as electromagnetic waves.