The D03930M1 from Microwave Circuits is a Diplexer with Frequency f1 917 to 942 MHz, Frequency f2 880 to 902 / 1710 to 1880 MHz, Power 5 W, Attenuation 45 to 50 dBc, Attenuation f1 50 dBc. Tags: Module with Connectors, Combline. More details for D03930M1 can be seen below.