The WMHPDDC-1-250M-40dB-N from Werbel Microwave is a Dual Directional Coupler with Coupling 40 ± 2.50 dB, Frequency 1 to 250 MHz, Average Power 100 W, Insertion Loss 0.43 to 0.60 dB, Directivity 18 to 33 dB. Tags: Module with Connectors. More details for WMHPDDC-1-250M-40dB-N can be seen below.