In communication technology, VHF is the abbreviation of Very High Frequency, which means very high frequency, which refers to radio waves with a frequency band from 30Mhz to 300MHz, and the wavelength range is 1m~10m. Most are used for radio and television broadcasts, as well as a communication channel for aviation and navigation.
Ultra High Frequency (UHF) is a radio wave with a frequency of 300~3000MHz and a wavelength of 1m~1dm. The radio waves in this band are also called decimeter waves.