The FNP-1486 from Filtronetics is a RF Duplexer with Frequency 340 to 400 MHz, Band 1 340 to 355 MHz, Band 2 385 to 400 MHz, Power 100 to 400 W, Insertion Loss 0.5 to 1.25 dB. Tags: Module with Connectors. More details for FNP-1486 can be seen below.