Microlab Model BK-34D is a 3 Channel Multiplexer which allows combination and separation of the signals in the LTE-700 and GSM-850 bands (Channel 1), the 1900 PCS band (Channel 2), and the North American AWS Band (Channel 3).
To minimize band inter-reaction, the inputs are well isolated and have minimal insertion loss over their respective frequency bands.
The Multiplexer has been designed using passive, proprietary techniques which minimizes cost and size. At the same time it ensures minimal loss and very high reliability at input powers up to 150W per input.
This configuration permits DC pass through all ports.