The DPX-0508 from Marki Microwave is a Diplexer with Frequency f1 DC to 5 GHz, Frequency f2 8 to 18 GHz, Power 1 W, Attenuation 25 to 45 dB (Rejection), Attenuation f1 25 to 40 dB. Tags: Module with Connectors. More details for DPX-0508 can be seen below.