The JFCD10K8T11K5SF-WR75 from JQL Electronics is a Diplexer with Frequency f1 10.7 to 10.9 GHz, Frequency f2 11.3 to 11.5, Power 1 W, Attenuation 30 to 35 dB, Attenuation f1 30 to 35 dB. Tags: Module with Connectors, Waveguide. More details for JFCD10K8T11K5SF-WR75 can be seen below.