Series 540 Precision Sliding Terminations

Series 540 Precision Sliding Terminations consist of a length of uniformly sized waveguide. Within the waveguide is a close fit sliding load, which moves in a controlled manner. The effect of Series 540 Precision Sliding Terminations enables the user to deduce low VSWR values to a greater accuracy than that achieved by a fixed termination technique. It is desirable to use a sliding termination when measuring low VSWR values.