The CSC-30-1.38G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 1.164 to 1.191 GHz, Frequency Sensitivity ±0.15 dB, Coupling 30 dB, Coupling Variation ±1.25 dB, Power 100 W. Tags: Module with Connectors. More details for CSC-30-1.38G SQ can be seen below.