The CSM-30-12.75G SQ from Crane Aerospace & Electronics is a Directional Coupler with Frequency 10700 to 14800 MHz, Coupling 30 dB, Coupling Variation ±1.2 dB, Frequency Sensitivity ±0.75 dB, Directivity 15 dB. Tags: Module with Connectors. More details for CSM-30-12.75G SQ can be seen below.