The AM0380CP-20 from AMCOM Communications, Inc. is a Directional Coupler with Frequency 300 to 8000 MHz, Coupling 20 dB, Coupling Variation ±1.2 dB, Frequency Sensitivity ±0.60 to ±1.20 dB, Directivity 16 to 25 dB. Tags: Module with Connectors. More details for AM0380CP-20 can be seen below.