The RMDI.1880Sf from Response Microwave Inc is a Diplexer with Frequency f1 1710 to 1785 MHz, Frequency f2 1805 to 1880 MHz, Power 50 W, Attenuation 70 dBc, Attenuation f1 70 dBc. Tags: Module with Connectors, Cavity. More details for RMDI.1880Sf can be seen below.