Rugged Radios GMR45, Руководство пользователя

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12
ANTENNA CONNECTION
Before operating, install an efficient well-tuned antenna. The success of your installation
will depend largely on the type of antenna and its correct installation. The radio can give
excellent results if the antenna system and its installation are given careful attention. Use a
50Ω impedance antenna and low-loss coaxial feed-line that has a characteristic impedance
of 50Ω, to match the radio input impedance. Coupling the antenna to the radio via feed-lines
having a impedance other than 50Ω reduces the efficiency of the antenna system and can
cause interference to nearby broadcast TV receivers, radio receivers and other electronic
equipment.
Note : Transmitting without first connecting an antenna or other matched load may damage
the radio.
Always connect the antenna to the radio before transmitting. All fixed stations should be
equipped with a lightning arrester to reduce the risk of fire, electric shock and radio damage.