We have tested the interference antenna in our Vector network analyzer and the working frequency is 7800-14000Mhz, as you can see from the chart. The antenna also includes a waveguide to coaxial adapter ( N type female ) made by Flann microwave so you can connect it to a coaxial line if a waveguide is unavailable. If you want to connect the antenna directly to a waveguide you can remove the waveguide to coaxial adapter.