The WVC-1542D1643.5-34M01 from Wevercomm is a RF Duplexer with Frequency 1.52 to 1.55 GHz / 1.62 to 1.66 GHz, Band 1 1.52 to 1.55 GHz, Band 2 1.62 to 1.66 GHz, Power 5 W, Insertion Loss 0.8 dB. Tags: Module with Connectors. More details for WVC-1542D1643.5-34M01 can be seen below.