The CSC-30-2.3G SQ from Crane Aerospace & Electronics is a Directional Coupler with Frequency 2200 to 2400 MHz, Coupling 30 dB, Coupling Variation ±0.5 dB, Frequency Sensitivity ±0.15 dB, Directivity 25 dB. Tags: Module with Connectors. More details for CSC-30-2.3G SQ can be seen below.