The DC1669M2002B40C250PN-01 from Dyne Tech is a Directional Coupler with Frequency 698 MHz to 2.7 GHz, Coupling 40 dB, Coupling Variation ±1 dB, Average Power 250 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for DC1669M2002B40C250PN-01 can be seen below.