Quantic PMI Model FD-0518-10-48-OPT3R5G5R5G is a 3.5 to 5.5 GHz Frequency Discriminator that provides a video output of 1 V/GHz and has an accuracy of ±0.2 GHz. This model has a rise time is <20 ns and operates into a 100 Ω video load. This model operates on ±15 VDC with a housing that measures 2.0" x 1.82" x 0.5" with SMA female connectors.