why uhf is higher frequency than vhf

UHF and VHF refer to the frequency range of radio waves, UHF is ultra high frequency, and VHF is very high frequency. The frequency range of UHF is 300-3000MHz and the frequency range of VHF is 30-300MHz, so the frequency of UHF is about ten times that of VHF

Frequency modulation is a form of radio modulation that transmits signals by changing the frequency of radio waves. The frequency of FM refers to the carrier frequency of radio waves, which determines the wavelength and propagation characteristics of radio waves.

Both UHF walkie-talkies and VHF walkie-talkies use frequency modulation to transmit signals, but because UHF and VHF have different frequency ranges, their FM frequencies are also different.

Generally speaking, the FM frequency of UHF walkie-talkies is 400-512MHz, and the FM frequency of VHF walkie-talkies is 134-174MHz.

Therefore, UHF walkie-talkies modulate at a higher frequency than VHF walkie-talkies. This is due to the difference in the frequency ranges of UHF and VHF.

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