The Broadcast Concepts LPFM3600FM is a low pass filter with directional coupler providing a DC voltage at the forward and reflected ports. The test ports feature a broadband equalizer network. The equalizer maintains a constant RF level at the detectors which results in almost the same voltage across the band. This filter has analog devices AD8361 rf detectors which offer 30dB of dynamic range. This is a major imoprovment over the last version which was diode based.
Each filter is carefully tuned with our E5071C s-parameter network analyzer.