The CSM-30-6G SQ from Crane Aerospace & Electronics is a Directional Coupler with Frequency 4000 to 8000 MHz, Coupling 30 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.8 dB, Directivity 20 dB. Tags: Module with Connectors. More details for CSM-30-6G SQ can be seen below.