The MDC-10 from Microwave Devices Inc. is a Directional Coupler with Frequency 860 to 904 MHz, Coupling 10 dB, Coupling Variation ±0.3 dB, Amplitude Flatness ±0.5 dB, Directivity 20 to 25 dB. Tags: Module with Connectors. More details for MDC-10 can be seen below.