Quantic PMI Model TD-30T-0418-MH is a high-speed Threshold Detector designed to operate over the 0.4 to 18 GHz Frequency Range, with a dynamic range of -18 to +5 dBm, and a Typical VSWR of 2.0:1 (2.5:1 Maximum). This unit comes in a small size with field removable GPO connector on the input and solder pin on the output.