The L5349 from Mercury Systems is a Diplexer with Frequency f1 1.565 to 1.585 GHz, Frequency f2 1.525 to 1.559 GHz, Attenuation 12 to 26 dB, Attenuation f1 12 to 26 dB, Attenuation f2 20 dB. Tags: Module with Connectors, Cavity. More details for L5349 can be seen below.