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GW Instek GDS-800 Series User Manual User Manual

Page 22

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GDS-800 Series Digital Storage Oscilloscope Operation Manual

22

Horizontal Control

To select the horizontal controls, press the MENU pushbutton to select the features.

Figure 5-5: The horizontal controls panel

TIME/DIV: The TIME/DIV knob adjusts the horizontal scale (in a 1-2-5 sequence) of

the selected waveforms (channel 1 and channel 2).

POSITION: The position control knobs adjust the horizontal position of the channel 1

& 2 waveforms. When the horizontal position is adjusted, the trigger position (T)

indicator “▼” (located on the upper side of the LCD graticule) will change the position

simultaneously. Besides, the horizontal position reached to the horizontal border of

the LCD graticule, the trigger position (T) indicator “▼” will change the shape to the

τ” or “υ”.

MENU: Select a control to modify the timebase, horizontal position, and horizontal

magnification of selected waveform.

z

Main: Display the main timebase only.

z

Window: To switch between the normal and zoomed display, Press F2 softkey

to display the timebase of windows zoom, in the meantime, the waveform

display area will change to gray color except the zoomed area (see figure 6-6).

Use the TIME/DIV knob to change the length (windows frame time range: from

2ns to one more step faster than the desired timebase. For example, if the 1ms

timebase is selected, the maximum window frame timebase will be 500µs) of the

zone and rotates the horizontal’s POSITION knob to change the position.