Key Specifications, Maximum Power: 5 Watt, Waveguide Size: WR-112, Minimum Frequency: 6.57 GHz, Maximum Frequency: 9.99 GHz. 5 Watts WR-112 Waveguide Load 6.57 GHz to 9.99 GHz Brass Copper with UG-51/U Flange. The PEW112TR001 is a WR-112 waveguide termination/load that operates in the frequency range of 6.57 GHz to 9.99 GHz. This WR-112 waveguide termination has a Max VSWR of 1.03:1. This waveguide termination design is made of painted brass and incorporates a UG-51/U flange. Waveguide terminations are part of Pasternack’s comprehensive waveguide product offerings which are available in stock and ready for same-day shipment.