The CSM-20-1.17G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 650 MHz to 1.7 GHz, Frequency Sensitivity 1.2 dB, Coupling 20 dB, Coupling Variation ±1 dB, Power 1 W. Tags: Module with Connectors. More details for CSM-20-1.17G SQ can be seen below.