GW Instek APS-1102 Control Software User Manual - Manual (Page 57)

7.5 Zooming and Scrolling the Display
7-5
7.5 Zooming and Scrolling the Display
7.5.1 Vertical zoom
The waveform display can be independently zoomed vertically or horizontally.
The vertical magnification ratio can be [1:1] (display the whole waveform), [1:2] (display the half of
waveform to the full screen), [1:4]... up to [1:256].
Click the button to the right of [Zoom Vert] and select the desired item from the display
magnification ratio list.
To increase the magnification ratio, press Alt
+ V, select [Zoom Vert], and press the  or  key.
To decrease the magnification ratio, press the  or  key. The Home key cancels zooming and
the End key zooms the waveform to maximum.
7.5.2 Horizontal zoom
The horizontal magnification ratio can be [1:1] (display the whole waveform), [1:2] (display the half
of waveform to the full screen), [1:4]... up to [1:128].
Click the button to the right of [Horiz] and select the desired item from the displayed
magnification ratio list.
To increase the magnification ratio, press Alt
+ H , select [Horiz] and press the  or  key. To
decrease the magnification ratio, press the  or  key. The Home key cancels zooming and the
End key zooms the waveform to maximum.
7.5.3 Scrolling
When the vertical/horizontal ratio is [1:2] or greater, the scroll button appears on the scroll bar.
Drag the scroll button with the mouse to observe other parts of waveform.
The scroll button starts blinking when clicked. Pressing the
 or  key in this status moves the
display position to the right or downward. Pressing the  or  key moves the display position to
the left or upward. Pressing the PageUp /PageDown moves the display position by a larger step.
The Home key moves the display position to the leftmost or upmost position and the End key
moves the display position to the rightmost or downmost position.
7.5.4 Marker and range selection
The markers are used to select the horizontal waveform range before editing or creating waveforms.
The markers are also used to specify the horizontal position to read the vertical value of the
waveform.
The markers in the ARB are displayed as vertical lines in the waveform display area.