Waveguide Terminations from Fairview Microwave include WR-28, WR-34, WR-42, WR-75 and WR-90 waveguide sizes. Fairview Waveguide Terminations frequency range is as low as 8.2 GHz and as high as 40 GHz. Waveguide Terminations maximum power input is as high as 4 Watts and the VSWR is as low as 1.03.