The RFDC8M3G20D from RF-Lambda is a Directional Coupler with Frequency 800 MHz to 2.5 GHz, Coupling 19 to 21 dB, Frequency Sensitivity ±0.5 to ±0.7 dB, Directivity 20 to 22 dB, Average Power 50 W. Tags: Module with Connectors. More details for RFDC8M3G20D can be seen below.