Purely arbitrary,
but the most common division is by wave-length.
i.e. 1 meter, 2 meter, etc
The energy of EM radiation depends on its frequency, and the lowest frequency corresponds to the lowest energy. Radio waves are at the low end of the energy and frequency spectrum.
Extremely low frequency (ELF) radio waves. They can have wavelengths of over 60,000 miles (100,000 km) and frequencies from 3 to 300 Hz.
The part that we call "Extremely Low Frequency Radio Waves".
Wi-Fi operates on radio waves in the 2.4 GHz or 5 GHz frequency bands within the electromagnetic spectrum. These frequencies allow Wi-Fi signals to transmit data wirelessly between devices like smartphones, laptops, and routers.
TV signals are typically carried by radio waves in the UHF (Ultra High Frequency) and VHF (Very High Frequency) bands of the electromagnetic spectrum. These waves are used to transmit television signals from transmitters to an aerial for reception on a TV set.
The radio frequency portion of the electromagnetic spectrum uses radio telescopes.
The energy of EM radiation depends on its frequency, and the lowest frequency corresponds to the lowest energy. Radio waves are at the low end of the energy and frequency spectrum.
3 - 30 megahertz is a frequency range within the radio frequency spectrum, commonly used for radio broadcasting, television broadcasts, and various communication systems. It falls in the low frequency range compared to higher frequency bands like microwaves or infrared.
The radio frequency portion of the electromagnetic spectrum uses radio telescopes.
Extremely low frequency (ELF) radio waves. They can have wavelengths of over 60,000 miles (100,000 km) and frequencies from 3 to 300 Hz.
The part that we call "Extremely Low Frequency Radio Waves".
Radio waves are the lowest frequency (and therefore longest wavelength) waves in the electromagnetic spectrum.
That would be sound waves, or the audio spectrum.
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.
The lowest frequency is effectively zero and this would be in the extremely low frequency (ELF) band in the sub-radio range of the electromagnetic spectrum.
Wi-Fi operates on radio waves in the 2.4 GHz or 5 GHz frequency bands within the electromagnetic spectrum. These frequencies allow Wi-Fi signals to transmit data wirelessly between devices like smartphones, laptops, and routers.
TV signals are typically carried by radio waves in the UHF (Ultra High Frequency) and VHF (Very High Frequency) bands of the electromagnetic spectrum. These waves are used to transmit television signals from transmitters to an aerial for reception on a TV set.