The CRM-10-500 from Crane Aerospace & Electronics is a Directional Coupler with Frequency 10 to 1000 MHz, Coupling 10 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.5 dB, Directivity 20 to 25 dB. Tags: Module with Connectors. More details for CRM-10-500 can be seen below.