The WVC-1975D2165-10M01B from Wevercomm is a RF Duplexer with Frequency 1.97 to 1.98 GHz / 2.16 to 2.17 GHz, Band 1 1.97 to 1.98 GHz, Band 2 2.16 to 2.17 GHz, Power 150 W, Insertion Loss 3 dB. Tags: Module with Connectors. More details for WVC-1975D2165-10M01B can be seen below.