PMI Model No. FD-0518-10-2G4G is a 2.0 to 4.0 GHz, frequency discriminator having a VSWR of 2.0:1 maximum, 1.5:1 typical, and a video output slope of 1V/GHz, frequency discriminator accuracy: ±100 MHz, Operating Input Power: +10 dBm nominal, ±0.1 dBm.