The CSM-8-6.1G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 5.8 to 6.4 GHz, Frequency Sensitivity ±0.25 dB, Coupling 8.5 dB, Coupling Variation ±1 dB, Power 1 W. Tags: Module with Connectors. More details for CSM-8-6.1G SQ can be seen below.