Often, electricians will install a 2″ conduit from the donor antenna to the bi-directional amplifier (BDA). A BDA is a device that boosts radio frequency
Category: ERRCS
This system works by installing a donor antenna on the roof of a high rise and pointing it at the nearest SF public safety radio
Downtown San Francisco is a concrete labyrinth. Tourists and residents are impressed by the massive skyscrapers dotting the SF skyline. However, this presents a problem