The 512 Series from Mi-Wave are dual programmable rotary vane attenuators that are available in frequency configurations from 5 GHz to 220 GHz. They are compatible with various waveguide sizes based on the selected frequency band. The attenuators have a range from 0 to 120 dB in 0.1 dB steps with 0.05 dB steps from 0 to 20 dB.