The RCPL-88-900M-10dB-N(f)-100W-z4 from Raditek is a Directional Coupler with Frequency 88 to 900 MHz, Coupling 10 dB, Coupling Variation ±1.2 dB, Directivity 20 dB, Average Power 100 W. Tags: Module with Connectors. More details for RCPL-88-900M-10dB-N(f)-100W-z4 can be seen below.