![]() UHF radio waves propagate mainly by line of sight they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. Lower frequency signals fall into the VHF (very high frequency) or lower bands. ![]() Radio waves with frequencies above the UHF band fall into the SHF (super-high frequency) or microwave frequency range. Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre.
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