The ZGDC6-372HP+ from Mini Circuits is a Directional Coupler with Frequency 380 to 3700 MHz, Coupling 6.3 to 7.3 dB, Coupling Variation ±0.6 to 1.5 dB, Directivity 16 to 32 dB, Average Power 150 to 250 W. Tags: Module with Connectors. More details for ZGDC6-372HP+ can be seen below.