The D2G12G51 from Microwave Circuits is a Diplexer with Frequency f1 80 to 2170 MHz, Frequency f2 2400 to 2500 MHz, Attenuation 50 dBc, Attenuation f1 50 dBc, Attenuation f2 50 dBc. Tags: Module with Connectors. More details for D2G12G51 can be seen below.