The CWK-10R-20.2G from Crane Aerospace & Electronics is a Directional Coupler with Frequency 500 to 40000 MHz, Coupling 10 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1.5 dB, Directivity 10 dB. Tags: Module with Connectors. More details for CWK-10R-20.2G can be seen below.