The JFCD1710T1880DF-OD from JQL Electronics is a RF Duplexer with Frequency 1.71 to 1.88 GHz, Band 1 1.71 to 1.78 GHz, Band 2 1.8 to 1.88 GHz, Power 150 W, Insertion Loss 0.8 dB. Tags: Module with Connectors. More details for JFCD1710T1880DF-OD can be seen below.