The CSDZ-20SH-1.1G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 960 MHz to 1.22 GHz, Frequency Sensitivity ±0.3 dB, Coupling 20 dB, Coupling Variation ±0.5 dB, Power 125 W. Tags: Surface Mount. More details for CSDZ-20SH-1.1G SQ can be seen below.