What is the difference between UHF and VHF?

Many people have heard the terms UHF and VHF applied in a number of situations involving electronic communication. Both terms are used to indicate different types of frequencies that have been and are still used in radio, television and even mobile phones. One of the key differences between UHF and VHF is that while both frequencies are part of the total electromagnetic spectrum, there are two different frequency strips along this spectrum.

UHF, or ultra -high frequency, concerns a band that covers a range between 300 Megahertz or MHz and 3000MHz. VHF or very high frequency operates at a lower level and covers a frequency range from 30 MHz to 300 MHz. Over the years, the UHF and VHF have been used for radio and television broadcasts, with individual stations assigned specific broadcast ranges along the bands. Government agencies usually determine which part of each group is available to operators in any given area of ​​the nation.

UHF and VHF were used in specificCH communication situations. For example, VHF is usually a selection band for FM radio transmissions, while UHF is often a selection for use in Air Air Air Television. On the other hand, the upper range of UHF bands is often used for HAM radio operations. As with commercial radio and television broadcasting, government agencies determine the scope or frequencies that HAM radio operators can use in a given nation for their communication.

In terms of mobile phones, UHF provides a band or frequency for mobile devices that use analog signals for communication purposes. Both UHF and VHF are still used in parts of the world where analog TV signals are commonly used. In addition, VHF is commonly used for civil aviation and public services announcements within communities.

UHF and VHF are only two of several types of frequencies used along the electromagneTical spectrum. VLF or very low frequency includes any audio transmission below 30 kHz, while the LF or low frequency ranges from 30 to 300 kHz. MF or medium frequency ranges from 300 kHz to 3MHz and is often used for AM radio broadcasting. HF or high -frequency ranges from 3MHz to 30 MHz and is often used in applications with short waves. The frequency range above UHF is usually known as SHF or super high frequency and is often limited to government and military use only in many nations.