The CSM-6M-15G from Crane Aerospace & Electronics is a Directional Coupler with Frequency 12400 to 18000 NHz, Coupling 6 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.50 dB, Directivity 15 dB. Tags: Module with Connectors. More details for CSM-6M-15G can be seen below.