The BXDC-20-NFC from KorinWell is a Directional Coupler with Frequency 300 to 500 MHz, Coupling 20 dB ± 1 dB, Coupling Variation 1 dB, Average Power 200 W, Peak Power 1.5 kW. Tags: Module with Connectors. More details for BXDC-20-NFC can be seen below.