The CDM-10-.435G SQ from Crane Aerospace & Electronics is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±1 dB, Frequency 400 to 470 MHz, Average Power 5 W, Insertion Loss 1.5 dB. Tags: Module with Connectors. More details for CDM-10-.435G SQ can be seen below.