The CFDM-1539165012 from Filtronetics is a RF Duplexer with Frequency 1518 to 1675 MHz, Band 1 1518 to 1560 MHz, Band 2 1626 to 1675 MHz, Power 12 to 15 W, Insertion Loss 1.2 to 1.6 dB. Tags: Surface Mount. More details for CFDM-1539165012 can be seen below.