The RCPL-400-500M-10d-N3-1W-k from Raditek is a Directional Coupler with Frequency 400 to 500 MHz, Coupling 10 dB, Coupling Variation ±0.5 dB, Amplitude Flatness ±0.5 dB (Amplitude Balance), Average Power 1 W. Tags: Module with Connectors. More details for RCPL-400-500M-10d-N3-1W-k can be seen below.