Over the past 40 years, new land-mobile radio (LMR) systems gradually have moved from VHF (150-174 MHz) to UHF (450-470 MHz), and more recently to 800 MHz. This progression from low to high frequencies is driven primarily by the availability of new spectrum, not superior physics, but many believe that 800 MHz performs better than VHF in real-world environments. The purpose of this article is to quantify the differences between VHF and 800 MHz and debunk some common myths regarding radio wave ...

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