The D88M5203 from Microwave Circuits is a Diplexer with Frequency f1 25 to 88 MHz, Frequency f2 108 to 520 MHz, Power 30.0 W, Attenuation 20 to 60 dBc, Attenuation f1 20 to 60 dBc. Tags: Module with Connectors. More details for D88M5203 can be seen below.