The CDM-6-.435G SQ from Crane Aerospace & Electronics is a Dual Directional Coupler with Coupling 6 dB, Coupling Variation ±1 dB, Frequency 400 to 470 MHz, Average Power 2 W, Insertion Loss 3.5 dB. Tags: Module with Connectors. More details for CDM-6-.435G SQ can be seen below.