The CD-1-6000-18000-40-200-NF-NF-SF / 011081 from DETI Microwave is a Directional Coupler with Frequency 6 to 18 GHz, Coupling 40 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1 dB, Directivity 20 to 22 dB. Tags: Module with Connectors. More details for CD-1-6000-18000-40-200-NF-NF-SF / 011081 can be seen below.