As if trucks weren't useful enough, some truck owners add even more capability by installing a communications system. UHF, two-way, and CB radios are helpful in trucks because they provide a reliable ...
At present, portable receivers generally use ferrite rod antennas for LF and MF (below 2 MHz), and whip antennas for HF (up to 30 MHz). Each type has proved effective in its particular application.
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