The PDF-150 from RF Bay is a RF Detector with Frequency 200 to 800 MHz, Max Input Power -7 to 10 dBm, Supply Voltage 9 to 15 V, Current 90 to 115 mA, VSWR Input 1.20:1, 2.00:1. Tags: Module with Connectors, Phase Detector. More details for PDF-150 can be seen below.