The ZADC-20-10+ from Mini Circuits is a Directional Coupler with Frequency 800 MHz to 1 GHz, Coupling 18.97 to 20.86 dB, Directivity 20.41 to 22.69 dB, Power 5 W, Average Power 5 W. Tags: Module with Connectors. More details for ZADC-20-10+ can be seen below.