The JFCD5787T5848SF from JQL Electronics is a RF Duplexer with Frequency 5.78 to 5.84 GHz, Band 1 5.78 to 5.80 GHz, Band 2 5.82 to 5.84 GHz, Power 1 W, Insertion Loss 2 dB. Tags: Module with Connectors. More details for JFCD5787T5848SF can be seen below.