Mohr CT100 - Figure 31: Hybrid Comp Adjustment with the Shorting Terminator

Appendix D: Calibration Procedures
Figure 30 shows the open trace after adjustment of Hybrid Comp with the vertical and
horizontal gain set to the recommended ranges.
Figures 31 and 32 show the deviation in vertical position of the trace after adjustment of
Hybrid Comp and application of a shorting terminator. For better accuracy, high horizontal
and vertical gain should be used, as in Figures 30 and 32.
86 Mohr CT100 / CT100HF Operator's Manual
Figure 30: Hybrid Comp adjustment with open terminator and
cursor at the reflected rise. The horizontal scale is set at 0.004
ft/div and the vertical scale is set at 2 mρ/div. The male–male BNC
adapter can be used to provide an “open” condition.
Figure 31: Hybrid Comp adjustment with the shorting terminator
and the cursor at the reflected rise. Hybrid Comp has been
adjusted so that the reflection coefficient of the trace is unchanged
between short and open. The horizontal scale should be 0.004
ft/div and the vertical scale should be set to 2 mρ/div to obtain
maximum accuracy.