Signal taps (also known as tappers and couplers), are used to unevenly split signal. Uneven splitting of signal can be used to "daisy-chain" antennas instead of home-running each antenna back to the amplifier.
The "tap" figure of a device is the difference between the two output ports. The "coupling" figure is ratio of the coupled output to the input.
RSRF signal taps are a low cost, high power, broadband solution for Distributed Antenna Systems (DAS) and cell phone signal boosters.
RSRF taps cover from 698 MHz to 2700 MHz, and are thus usable with all North American 2G, 3G, and 4G LTE services on all carriers.