The JFCD0224T0401SF from JQL Electronics is a RF Duplexer with Frequency 224 to 401 MHz, Band 1 224 to 303 MHz, Band 2 321 to 401 MHz, Power 120 W, Insertion Loss 0.8 dB. Tags: Module with Connectors. More details for JFCD0224T0401SF can be seen below.