The BDC1104-10 from Federal Custom Cable is a Directional Coupler with Frequency 1 to 18 GHz, Coupling 10 dB, Coupling Variation +/- 1 dB, Frequency Sensitivity +/- 0.9 dB, Directivity 12 to 15 dB. Tags: Module with Connectors. More details for BDC1104-10 can be seen below.