Quantic PMI Model No: 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 +/-200 MHz. This model has a rise time is less than 20 ns and operates into a 100 Ω video load. This model operates on +/-15 VDC and measures 2.0" x 1.82" x 0.5".