The ZADC-20-7550DC+ from Mini Circuits is a Directional Coupler with Frequency 800 MHz to 1.45 GHz, Coupling 19.29 to 28.08 dB, Directivity 21.71 to 43.17 dB, Power 5 W, Average Power 5 W. Tags: Module with Connectors. More details for ZADC-20-7550DC+ can be seen below.