The CSC-30-1.65G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 1.6 to 1.7 GHz, Frequency Sensitivity ±0.75 dB, Coupling 30 dB, Coupling Variation ±1 dB, Power 1 W. Tags: Module with Connectors. More details for CSC-30-1.65G SQ can be seen below.