The Keysight 8490G Attenuator results in an attenuation of 3, 6, 10, 20, 30 or 40 dB in the signal path. The user can optionally select the attenuation when ordering. This attenuator can be used in the frequency range DC to 67 GHz. It is characterized by high accuracy and a low standing wave ratio. On the production side, the attenuator is swept across the entire frequency range so that the specifications are checked at all frequencies and correspond to the specifications.