The Keysight R281A 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.

• Superior RF Performance
• Maximum SWR: 1.13
• Waveguide Designator: EIA WR-28 MIL-W-85/3-009
• Flange Designator: UG-599/U MIL-F-3922