Zoom: x1, x2, x4, x8, x16
Zoom allows you to set the horizontal gain of the TDR. Higher Zoom will spread out the trace and make it easy to identify the start of an event.
Move Cursor: [Left] [Right]
Use the [Left] [Right] arrow keys to move the cursor across the screen. The distance from the 965DSP to the cursor is always shown in the center of the distance bar. Always place the cursor to the left side of an event to determine distance to the event.
Note: Always subtract the five foot length of the test leads from the distance measurement for highest accuracy.
Distance Bar
Start
0 | 1525 ft | 3000 |
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Stop
The “Start” and “Stop” numbers shown in the distance bar are the distances from the test set to the left and right side of the screen.
The Stop distance may be different from the Length selected due to the screen resolution.
The Start and Stop distances are also affected by zooming and panning.
Panning
If you move the cursor to the right side of the screen, the screen will “pan” or move to the right.
If you move the cursor to the left side of the screen (and the start distance is greater than 0 feet or meters), the screen will “pan” to the left.
Vertical Offset
If the cursor is moved to a position on the TDR trace that is out of viewing range (above the top of the screen or below the bottom), the trace is shifted up or down to bring it into view. The
x axis (horizontal) will not move. The vertical offset will be maintained until the cursor is moved to another point
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