Key Specifications, Waveguide Size: WR-187, Coax Connector Impedance: 50 Ohm, Coax Connector Series: N, Coax Connector Gender: Female, Waveguide Adapter Style: Right Angle, Minimum Frequency: 3.95 GHz, Maximum Frequency: 5.85 GHz. WR-187 UG-407/U Round Cover Flange to Type N Female Waveguide to Coax Adapter, 3.95 GHz to 5.85 GHz, J Band, Aluminum, Paint. PEWCA1056 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 WR-187 to N type connector and has a female gender. Our WR-187 to type N female waveguide adapter transition has a right angle design and has a round cover flange. Pasternack right angle WR-187 to type N waveguide to coaxial cable transition / adapter has a minimum frequency of 3.95 GHz and a maximum frequency of 5.85 GHz. WR187 waveguide to N type transition adapter to coax PEWCA1056 is part of over 40,000 RF, microwave and millimeter wave components available from Pasternack. Our WR-187 waveguide adapter transition with type N interface can ship worldwide the same day that it is purchased as with our other available RF parts.