The CSM-8-2G SQ from Crane Aerospace & Electronics is a Directional Coupler with Frequency 1670 to 1700 MHz, Coupling 8 dB, Coupling Variation ±0.25 dB, Directivity 23 dB, Average Power 5 W. Tags: Module with Connectors. More details for CSM-8-2G SQ can be seen below.