Key Specifications, Maximum Power: 90 Watt, Waveguide Size: WR-90, Minimum Frequency: 8.2 GHz, Maximum Frequency: 12.4 GHz, Impedance: 50 Ohm. 90 Watts High Power WR-90 Waveguide Load 8.2 GHz to 12.4 GHz. PE6824 90 Watts medium power waveguide load (also known as waveguide termination) has a WR-90 input. This Pasternack WR-90 waveguide load / termination is rated for a minimum frequency of 8.2 GHz and a maximum frequency of 12.4 GHz. Our WR-90 waveguide terminator has a maximum input power of 90 Watts. WR-90 waveguide load / termination PE6824 has an average maximum VSWR of 1.07:1. This Pasternack WR-90 medium power waveguide termination / load is part of over 40,000 in-stock RF, microwave and millimeter wave components. Our WR-90 load ships same day as purchased worldwide as with our other RF parts.