The DXC1900M40B250PDB-01 from Dyne Tech is a Diplexer with Frequency f1 1.71 to 1.88 GHz, Frequency f2 1.92 to 2.17 GHz, Power 250 W, Attenuation 58 to 60 dB, Attenuation f1 60 dB. Tags: Module with Connectors. More details for DXC1900M40B250PDB-01 can be seen below.