RF Coupler – Model C6413 – Dual Directional Coupler is a High Power design. The unit operates with 70 dB Coupling, covers the full 1-50 MHz band rated at 20,000 W CW. RF Coupler – Model C6413 is designed for military and commercial applications and operates with less than 0.05 dB of Insertion Loss and better than 0.5 dB of Coupling Flatness. The unit is available with a variety of mainline and coupled port connectors. Werlatone Directional Couplers are broadband Dual, Uni, and Bi-Directional. Above all, our high power designs tolerate the most harsh operating conditions associated with military and EMC testing environments.