4. Operating Instructions
Figure 4.36. Envelope Plot with Frequency Density display.
Figure 4.37. Envelope Plot with Fill Mode, showing the range of impedance values at the
cursor position (51.5–172.3 ohms, red circle).
Envelope Plots can be saved as screenshots:
1. With an Envelope Plot on-screen, select Save Picture.
2. A dialog box appears. Press the Show Keyboard menu option to display the on-screen
keyboard, or use a USB keyboard.
3. Enter a name for the screenshot and select OK to save the screenshot.
To view saved Envelope Plot screenshots:
1. Make sure Envelope Plot is toggled to Off.
2. Select View Saved. A scrolling dialog box appears.
3. Use the M-FUNCTION knob to highlight the screenshot you wish to load.
70 CT100B TDR Cable Analyzers Operator’s Manual