The Whistler Group SC04 User Manual

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WARNING: Use extreme caution when installing or 
removing an outdoor antenna. If the antenna starts to 
fall, let it go! It could contact overhead power lines. If the 
antenna touches a power line, touching the antenna, 
mast, cable, or guy wires can cause electrocution and 
death. Call the power company to remove the antenna. 
DO NOT attempt to do so yourself.
WARNING: Outdoor antennas must be properly 
grounded to prevent static buildup and lightning 
damage. Article 810 of the National Electrical 
Code, ANSI/NFPA 70, provides information about 
proper grounding of the antenna mast, connection 
of coaxial cable to an lightning arrestor, size of 
grounding conductors, location of the lightning 
arrestor and connection of grounding conductors to 
grounding electrodes.
Additionally, disconnect your radio from the outdoor 
antenna during electrical storm activity to prevent 
damage. The diagram below provides an example of 
a proper antenna grounding system.