The CSC-8-3.8G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 3.4 to 4.2 GHz, Frequency Sensitivity ±0.15 dB, Coupling 8.5 dB, Coupling Variation ±0.5 dB, Power 60 W. Tags: Module with Connectors. More details for CSC-8-3.8G SQ can be seen below.