The 3KCZ70-80/X3170 from K&L Microwave is a Diplexer with Frequency f1 0.08 to 0.87 GHz, Frequency f2 1.16 to 1.17 GHz, Attenuation 15 to 30 dB, Attenuation f1 30 dB, Insertion loss 0.5 dB. Tags: Module with Connectors, Ceramic. More details for 3KCZ70-80/X3170 can be seen below.