The X5510 from Mercury Systems is a Diplexer with Frequency f1 8.175 to 8.225 GHz, Frequency f2 8.475 to 8.525 GHz, Attenuation 90 dB, Attenuation f1 90 dB, Attenuation f2 90 dB. Tags: Module with Connectors, Cavity. More details for X5510 can be seen below.