Key Specifications, Waveguide Size 1: WR-19, Flange Size 1: UG383/U-Mod, Waveguide Size 2: WR-19, Flange Size 2: UG383/U-Mod, Length: 9 inches, Frequency, Min: 40 GHz, Frequency, Max: 60 GHz. WR-19 Instrumentation Grade Straight Waveguide Section 9 Inch Length with UG383/U-Mod Flange Operating from 40 GHz to 60 GHz. PE-W19S001-9 WR-19 waveguide section is straight and is 9 inches long. This 9 inch WR-19 straight waveguide section from Pasternack is instrumentation grade and has a UG383/U-Mod flange. Our straight WR-19 waveguide section with UG383/U-Mod flange has a minimum frequency of 40 GHz and a maximum frequency of 60 GHz. WR-19 waveguide section PE-W19S001-9 is part of over 40,000 RF, microwave and millimeter wave components. Our instrumentation grade WR-19 straight waveguide section will ship same the day as it is purchased worldwide as with our other RF parts.