GW Instek GDS-1000-U Series User Manual - Manual (Page 97)

SAVE/RECALL
97
External
USB Flash
drive A USB flash drive (FAT or FAT32
format) can hold practically an
unlimited number of waveforms.
Ref A, B Two reference waveforms are used as
a buffer to recall a waveform in the
display. You have to save a waveform
into internal memory or to USB, then
copy the waveform into the reference
waveform slot (A or B), and then recall
the reference waveform into the
display.
Waveform data
format One division includes
25 points of horizontal
and vertical data. The
vertical point starts
from the center line.
The horizontal point
starts from the leftmost
waveform.
0
25
–25
25 50 75
The time or amplitude represented by each data
point depends on the vertical and horizontal scale.
For example:
Vertical scale: 10mV/div ( 4mV per point)
Horizontal scale: 100us/div (4us per point)
Waveform file
contents: other
data A waveform file also includes the following
information.
 Memory length
 source channel
 vertical offset
 vertical scale
 coupling mode
 waveform last dot
address
 date and time
 trigger level
 vertical position
 time base
 probe attenuation
 horizontal view
 horizontal scale
 sampling period
 sampling mode