Introduction to radio broadcast frequency

The term communication means the transferring of data and it contains sending, receiving and processing the data through space. There are several modes of radio broadcast frequency. For example, ground wave or surface wave propagation, space wave propagation, sky wave propagation, satellite communication. Here we discuss the radio broadcast frequency in the different modes.
Frequency for Radio Broadcasting

The mode of wave propagation in which the radio wave emitted from the transmitter antenna reaches the receiving antenna through space. These radio waves are called space waves. The space waves are the radio waves of frequency range from 54 MHz to 4.2 GHz. The space waves travel in straight line from transmitting antenna to receiving antenna. These types of radio wave are used for sight communication and for satellite communication. The space wave propagation is used for television broadcast, microwave link and satellite communication. To receive the radio signal we have to use the antenna, so that the antenna will pick up or collect the thousands of the radio signals at the same time. The radio tuner will tune the signals for the particular frequencies and we get the desired signals at that particular time. The frequency of the tuned signal is the resonant frequency of the LCR series circuit and that is equal to

Where f0 is the resonating frequency in Hertz, L is the inductance, in Henry and C is the capacitance in Farad.

Image of the radio wave broadcasting
Conclusion Fto the Frequency for Radio Broadcasting

If the frequency of the radio wave is greater than 54MHz, then the waves cannot travel along the surface of earth as the earth absorbs them. Hence, their broadcasting cannot be like ground wave broadcasting. These radio waves cannot be reflected by ionosphere; hence, their propagation cannot be like sky wave propagation. Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries, using radio frequency ablation and coagulation, including the treatment of sleep apnea. The radio waves, which are generated artificially, are used for the fixed and mobile radio communication, satellite communication, in broad casting etc.

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