The 2CNK125-40 from Werbel Microwave is a Dual Directional Coupler that operates from 100 kHz to 250 MHz. It provides 40 dB of coupling with a directivity of above 20 dB and an insertion loss of 0.4 dB. The coupler can handle up to 250 watts of power with a VSWR of 1.20:1. It is available in a module with N-type female connectors.