The ZADC-10-4-75 from Mini Circuits is a Directional Coupler with Frequency 10 MHz to 1 GHz, Coupling 10.66 to 10.83 dB, Directivity 17.39 to 29.82 dB, Power 1 W, Average Power 1 W. Tags: Module with Connectors. More details for ZADC-10-4-75 can be seen below.