The MDP-6 from Microwave Devices Inc. is a Directional Coupler with Frequency 1.8 to 2 GHz, Coupling 6 dB, Coupling Variation ±0.5 dB, Amplitude Flatness ±0.5 dB, Directivity 20 to 25 dB. Tags: Module with Connectors. More details for MDP-6 can be seen below.