The CDM-30-.435G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 400 to 470 MHz, Frequency Sensitivity ±0.8 dB, Coupling 30 dB, Coupling Variation ±1 dB, Power 5 W. Tags: Module with Connectors. More details for CDM-30-.435G SQ can be seen below.