The ZFDC-15-10+ from Mini Circuits is a Directional Coupler with Frequency 800 MHz to 1 GHz, Coupling 13.87 to 15.38 dB, Directivity 21.07 to 24.51 dB, Power 5 W, Average Power 5 W. Tags: Module with Connectors. More details for ZFDC-15-10+ can be seen below.