Key Specifications, Waveguide Size: WR-187, Coax Connector Series: N, Coax Connector Gender: Female, Waveguide Adapter Style: Right Angle, Minimum Frequency: 3.94 GHz, Maximum Frequency: 5.99 GHz, Maximum VSWR: 1.25:1. WR-187 UDR48 Flange to N Female Waveguide to Coax Adapter Operating from 3.94 GHz to 5.99 GHz in Aluminum. PEWCA1083 WR-187 waveguide to coax adapter is also known as a WR-187 waveguide transition. This waveguide to coax adapter / transition is constructed as a WR187 to type N connector and has a female gender. Our WR-187 to type N female waveguide adapter transition has a right angle design and has a UDR48 flange. Pasternack right angle WR 187 to N type waveguide to coaxial cable transition / adapter has a minimum frequency of 3.94 GHz and a maximum frequency of 5.99 GHz. WR-187 waveguide to type N transition adapter to coax PEWCA1083 is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-187 waveguide adapter transition with N type interface can ship worldwide the same day that it is purchased as with our other available RF parts.