The CSM-30-3G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 2 to 4 GHz, Frequency Sensitivity ±0.8 dB, Coupling 30 dB, Coupling Variation ±1 dB, Power 20 W. Tags: Module with Connectors. More details for CSM-30-3G SQ can be seen below.