Frequency Range: 8.2 - 12.4 GHz Maximum SWR: 1.25 Waveguide Designator: EIA WR-90 MIL-W-85/1-077 Flange Designator: UG-135/U MIL-F-3922/54C-008 Coaxial Connector: Type-N femaleThe Keysight X281A adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.