Mohr CT100B Series - Final Vp of the Cable

4. Operating Instructions
Figure 4.6. Use of the HORIZONTAL SCALE knob to improve Vp accuracy.
5. Press the M-FUNC button to set the M-FUNCTION to Vp, and adjust Vp using the
M-FUNCTION knob until the CT100B distance measurement to the active cursor equals the
physical measurement. The final Vp value is the true Vp value of the cable (Figure 4.7). Note
that in the Measurement → Meas. Settings menu there is an option to set Vp to six
significant digits.
Figure 4.7. Final Vp of the cable.
The cable Vp can be saved to a table of custom Vp values. See Section 4.5.
44 CT100B TDR Cable Analyzers Operator’s Manual