PMI Model No. TD-1G12G-RL-CD-SFF is a high-speed threshold detector designed to operate over the 1.0 to 12.0 GHz frequency range. It has an adjustable threshold level of -30 to -10 dBm and a VSWR of 3.0:1 maximum. This unit comes in l size with field removable SMA connectors on the input and output and has active low output.