The CTM-20M-5G from Crane Aerospace & Electronics is a Directional Coupler with Frequency 2000 to 8000 MHz, Coupling 20 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.40 dB, Directivity 20 dB. Tags: Module with Connectors. More details for CTM-20M-5G can be seen below.