Product Overview Mini-Circuits’ ZGBDC20-33HPD+ is a high-power, wideband bi-directional coupler providing 20 dB coupling with good cou- pling flatness across the 300 to 3000 MHz frequency range. This model is capable of handling up to 250W RF input power and passing up to 3.0A DC current from input to output. 20 dB typical directivity allows accurate sampling of signal through the coupled port, and low mainline loss (0.15 dB typical) provides excellent transmission of signal power from input to output. The coupler comes housed in a rugged, IP67 weatherproof case (5.58 x 2.50 x 1.00″) with 7/16 DIN connectors.