Blood: The familiar red fluid in the body that contains white and red blood cells, platelets, proteins, and other elements.The blood is transported throughout the body by the circulatory system.lood: The familiar red fluid in the body that contains white and red blood cells, platelets, proteins, and other elements.
VHF (Very High Frequency). Electromagnetic waves with the frequency range from 30MHz to 300MHz are called VHF. VHF band is sandwiched between HF (High Frequency) and UHF (Ultra High Frequency) bands in spectrum. Television broadcast and FM radio broadcast (usually utilizes the 88MHz â 108MHz range) are two major uses of VHF.
UHF television broadcasting is the use of ultra high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television broadcasts. UHF channels are typically given higher channel numbers, like the US arrangement with VHF channels 2 to 13, and UHF channels numbered 14 to 83. UHF broadcasting became possible due to the introduction of new high-frequency vacuum tubes developed by Philips immediately prior to the opening of World War II.