HOW DOES THE RADIO TRANSMISSION HAPPEN?

AM: Amplite modulation - KHz
FM: Frequency - MHz

MODULATION: Is the process of putting information in understandable ways to transmit information
DEMODULATION: Is the process to interpret and understand the information that in being transmitted
 TRANSMITTER: Modulation
RECEPTOR: Receiver

https://www.youtube.com/watch?v=sRX2EY5Ubto
video

RADIO FREQUENCY SIGNALS: are made above electric and magnetic waves