The RFDC8M4G05A from RF-Lambda is a Directional Coupler with Frequency 800 MHz to 3.5 GHz, Coupling 5 dB, Amplitude Flatness 0.7 dB, Directivity 20 dB, Average Power 200 W. Tags: Module with Connectors. More details for RFDC8M4G05A can be seen below.