3. Getting Started
Figure 3.6. The two versions of the Main menu. On the left is the Special menu and on the
right is the Standard menu. Note that the menu selections across the bottom are exactly the
same for both menus.
Top-level menu selections are listed below in Table 3.4. Holding down the MENU button while
pressing any button (or turning the M-FUNCTION knob) will display a help dialog for that
button’s current menu selection (known as “blue button help”).
Table 3.4. MENU Button and Menus
Menu Selection Purpose/Action
Distance to Fault (part of
Special Main menu)
The TDR selects appropriate horizontal and vertical
scale values to display the entire cable on-screen. The
cursors are positioned approximately to the beginning
and end of the cable. This is the quickest way to find
distance to fault of a broken cable.
This function can also be found at AUTOFIT/HELP
→ AUTOFIT.
Intermittent (part of Special
Main menu)
Enables/disables envelope plot mode. Begins capture
of trace data to help detect an intermittent fault.
Other envelope plot functions can be found at MENU
→ Measurement → Envelope Plot. See Section 4.12
for more information.
Pass-Fail Masks (part of Special
Main Menu)
Use to load a mask from the mask library. This
functions as a test limit for the live TDR trace.
Other Mask functions, including creating a mask, can
be found at FILE → Masks. See Section 4.11 for more
information.
CT100 PC Connect (part of Special
Main menu)
Loads a menu with options to connect to CT Viewer 2
software running on a Windows PC.
22 CT100B TDR Cable Analyzers Operator’s Manual
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