The CBG-11B-1250 from Crane Aerospace & Electronics is a Directional Coupler with Frequency 100 to 2000 MHz, Coupling 11 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.5 dB, Directivity 15 dB. Tags: Surface Mount. More details for CBG-11B-1250 can be seen below.