The JFCD4400T4840SF from JQL Electronics is a Diplexer with Frequency f1 4400 to 4540 MHz, Frequency f2 4700 to 4840 MHz, Power 1 W, Attenuation 30 to 35 dB, Attenuation f1 30 to 35 dB. Tags: Module with Connectors, Cavity. More details for JFCD4400T4840SF can be seen below.