The FAMB02B05A01-1.85 to 1.91 GHz from 3Rwave is a Multiplexer with Frequency 1.85 to 1.91 GHz, Insertion Loss 1.5 dB, Power handling 30 W, Return Loss 17 dB. Tags: Module with Connectors. More details for FAMB02B05A01-1.85 to 1.91 GHz can be seen below.