The CDM-10M-3G from Crane Aerospace & Electronics is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±1.25 dB, Frequency 2000 to 4000 MHz, Average Power 50 W, Insertion Loss 1.5 dB. Tags: Module with Connectors. More details for CDM-10M-3G can be seen below.