The D30N005060 from Fujian MIcable is a Directional Coupler with Frequency 0.5 to 6 GHz, Coupling 30 dB, Coupling Variation ±0.7 dB, Amplitude Flatness ±0.8 dB, Directivity 18 dB. Tags: Module with Connectors. More details for D30N005060 can be seen below.