The PDF-100 from RF Bay is a RF Detector with Frequency 3 to 300 MHz, Max Input Power -10 to 17 dBm, Supply Voltage 9 to 15 V, Current 175 to 200 mA, VSWR Input 1.20:1, 2.00:1. Tags: Module with Connectors, Phase Detector. More details for PDF-100 can be seen below.