The QSDCC-6570-9990 from Qualwave is a Waveguide Coupler with Frequency 6.57 to 9.99 GHz, Coupling 40 to 55 dB, Directivity 18 to 23 dB, Power 520000 W. Tags: Crossguide Coupler, Directional Coupler. More details for QSDCC-6570-9990 can be seen below.