The RCPL-2.5-6.0-xd-Sf-XW-Family-w18 from Raditek is a Directional Coupler with Frequency 2.5 to 6 GHz, Coupling 6 to 30 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1.25 dB, Directivity 18 dB. Tags: Module with Connectors. More details for RCPL-2.5-6.0-xd-Sf-XW-Family-w18 can be seen below.