The transmitter performs modulation and raises the power level of a modulated wave to required level for effective radiation.
The microphone converts the audio signal into an equivalent audio electrical signal. The output is filtered to have a bandwidth of 10kHz.
The pre-amplifier provides the required voltage amplification. The driver amplifier increases the power level of the signal as required by the high power modulation amplifier.
The high frequency carrier wave is generated by a crystal oscillator which has highest frequency stability. The Carrier signal is fed to a buffer amplifier which is a low gain, high input impedance amplifier which isolates crystal oscillator and the power level of the carrier signal to drive the modulated class C amplifier.
The modulating audio signal and carrier signal are applied to the modulator. The collector modulation is used for modulation in high power transmitter. The transmitting antenna transmits the signal.
