The DC1800M200B30C10PN-01 from Dyne Tech is a Directional Coupler with Frequency 1.7 to 1.9 GHz, Coupling 30 dB, Coupling Variation ±1 dB, Directivity 20 dB, Average Power 10 W. Tags: Module with Connectors. More details for DC1800M200B30C10PN-01 can be seen below.