The CYK-R-M Series from Crane Aerospace & Electronics is a Directional Coupler with Frequency 2000 to 46000 MHz, Coupling 10 to 16 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1 to 1.5 dB, Directivity 12 to 19 dB. Tags: Module with Connectors. More details for CYK-R-M Series can be seen below.