The R&K-SD500IFM-0S from R & K Company Limited is a RF Detector with Frequency 500 MHz, Max Input Power 5 dBm (Linear), 10 dBm (Non-Linear), Current 110 to 380 mA, VSWR 1.30:1, VSWR Input 1.30:1. Tags: Module with Connectors, Phase Detector. More details for R&K-SD500IFM-0S can be seen below.