The L5748 from Mercury Systems is a Diplexer with Frequency f1 1.215 to 1.24 GHz, Frequency f2 1.52 to 1.585 GHz, Power 100 W, Attenuation 60 to 70 dB, Attenuation f1 70 dB. Tags: Module with Connectors, Cavity. More details for L5748 can be seen below.