To completely protect your device from lightning, two layers of protection are recommended: installing an in-line lightning surge arrestor and grounding the antenna mast. Lightning doesn’t have to physically strike the antenna itself to cause damage: nearby lightning strikes and static charge build-up during storms can also create voltage surges which, although smaller, can damage the filters and amplifiers inside the booster or DAS headend. Lightning can strike the antenna and travel through the coaxial cable to your device, which will not only damage the signal boosting equipment but can cause a fire or shock people in the vicinity. Grounding the antenna protects your signal booster or DAS from damage in case of lightning strikes. While cell phone boosters and distributed antenna system (DAS) have become an increasingly common accessory for businesses and households, many people are overlooking a vital component of their set-up that will protect their investment and ensure the longevity of their equipment: properly grounding the antenna system.
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