Key Specifications, Maximum Power: 60 Watt, Waveguide Size: WR-75, Minimum Frequency: 10 GHz, Maximum Frequency: 15 GHz. 60 Watts WR-75 Waveguide Load 10 GHz to 15 GHz Brass Copper with UG Square Cover Flange. The PEW75TR001 is a WR-75 waveguide termination/load that operates in the frequency range of 10 GHz to 15 GHz. This WR-75 waveguide termination has a Max VSWR of 1.25:1. This waveguide termination design is made of painted brass and incorporates a UG Square Cover flange. Waveguide terminations are part of Pasternack’s comprehensive waveguide product offerings which are available in stock and ready for same-day shipment.