PE9878 WR-42 waveguide to coax adapter is also known as a WR-42 waveguide transition. This waveguide to coax adapter / transition is constructed as a WR42 to 2.92mm connector and has a female gender. Our WR-42 to 2.92mm female waveguide adapter transition has a end launch design and has a square cover flange. Pasternack end launch WR-42 to 2.92mm waveguide to coaxial cable transition / adapter has a minimum frequency of 18 GHz and a maximum frequency of 26.5 GHz.