The ZGDC10-372HP+ from Mini Circuits is a Directional Coupler with Frequency 380 to 3700 MHz, Coupling 10 to 11.4 dB, Coupling Variation ±0.6 to 1.4 dB, Directivity 14 to 32 dB, Average Power 150 to 250 W. Tags: Module with Connectors. More details for ZGDC10-372HP+ can be seen below.