The DC1990M3220B6C250PN-01 from Dyne Tech is a Directional Coupler with Frequency 380 MHz to 3.6 GHz, Coupling 6.3 to 7.2 dB, Coupling Variation ±0.6 to ±1.4 dB, Directivity 16 dB, Average Power 250 W. Tags: Module with Connectors. More details for DC1990M3220B6C250PN-01 can be seen below.