The FM2CP1125-15 from Fairview Microwave is a Directional Coupler with Frequency 8 to 43.5 GHz, Coupling 14 to 16 dB, Frequency Sensitivity ±0.3 to 0.7 dB, Directivity 10 to 18 dB, Average Power 30 W. Tags: Module with Connectors. More details for FM2CP1125-15 can be seen below.