The DC-WR284-10-Xf-Xc1-Xc2 from AFT microwave GmbH is a Waveguide Coupler with Frequency 2846 to 3008 MHz, Coupling -70 to -50 dB, Directivity 27 dB, Insertion Loss 0.05 dB, Power 15 kW. Tags: Dual Directional Coupler. More details for DC-WR284-10-Xf-Xc1-Xc2 can be seen below.