GW Instek GDS-800 Series User Manual - Manual (Page 22)

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.