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radio communications - What are the reasons for the particular range of VHF and UHF frequencies? - Aviation Stack Exchange
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Frequency Range- ELF, LF,MF ,HF, VHF, UHF, SHF, EHF, ULTRAVIOLET, INFRARED, X-Ray & Application - YouTube
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Electromagnetic (EM) Spectrum 1. Medium Frequency (MF), High Frequency... | Download Scientific Diagram
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