The ZDC8-40C1000-6000-2669 from COM-MW is a Directional Coupler with Frequency 1000 to 6000 MHz, Coupling 38.5 to 41.5 dB, Directivity 18 dB, Average Power 500 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for ZDC8-40C1000-6000-2669 can be seen below.