The MPC-3 from Microwave Devices Inc. is a Directional Coupler with Frequency 800 MHz to 2 GHz, Coupling 3 dB, Coupling Variation ±0.5 dB, Amplitude Flatness ±1.0 dB, Directivity 20 dB. Tags: Module with Connectors. More details for MPC-3 can be seen below.