The RCPL-0.1-250M-40d-Nf-250W-w18 from Raditek is a Directional Coupler with Frequency 0.1 to 250 MHz, Coupling 30 to 50 dB, Coupling Variation ±1.00 dB (Coupling Tolerance), Frequency Sensitivity ±1 dB, Directivity 20 dB. Tags: Module with Connectors. More details for RCPL-0.1-250M-40d-Nf-250W-w18 can be seen below.