How Is Radio Frequency Calculated?

yatebts.comImage: yatebts.comThe frequency of a radio wave is the number of wave cycles it generates in one second. It is calculated by dividing the velocity of the radio wave (speed of light, c =299 792 458 m/s) by wavelength (λ). Wavelength is the length of one full wave in metres. Mathematically, Frequency = f = c/λ.

How is the frequency of a radio wave determined?

Its respective frequency range is what determines a wave’s type. Radio waves are a type of electromagnetic radiation with frequencies ranging from 300 GHz to as low as 3 Hz, and wavelengths ranging from 1 millimeter (0.039 inches) to 100 kilometers (62 miles). Similar to all other electromagnetic waves, they travel at the speed of light.

How are radio waves related to the speed of light?

Radio waves are electromagnetic waves and they travel at the speed of light in free space. The equation that join frequency and length is the following: speed of light (c) = frequency x wavelength. In the equation you can see that, if the RF frequency increases, its wavelength decreases.

How many times a second does a radio frequency change?

Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around twenty thousand times per second (20 kHz) to around three hundred billion times per second (300 GHz).

How to find the effective radiated power of a radio frequency?

If 0 dB = 1 mW, then 10 dB = 10 mW, and 20 dB = 100 mW. Subtract 3 dB from 100 mW to drop the power by half (17 dB = 50 mW). Then, subtract 3 dB again to drop the power by 50 percent again (14 dB = 25 mW). NoteYou can find all values with a little addition or subtraction if you use the basic rules of algorithms. Effective Isotropic Radiated Power

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