User Manual

SAVE/RECALL
149
Ref 1~4
Reference waveforms stored in the
internal memory, separate from W1 ~
W20. Reference waveforms (Ref 1 ~ 4)
can be displayed directly onto the
display with amplitude and frequency
information. Ref 1~4 are useful for
reference purposes. Other waveforms (
LSF and W1~20) must be recalled to
R1~4 before being displayed.
Contents:
waveform data
The waveform data can be used for detailed
analysis. It consists of the horizontal and vertical
data used by the waveform for the entire memory
length.
Spreadsheet File Format
Format
DSxxxx.csv (Comma-separated values format, can
be opened in spreadsheet applications such as
Microsoft Excel). CSV files cannot be recalled onto
the GDS-3000 series of oscilloscopes.
Waveform type CH1 ~ 4
Input channel signal
Math
Math operation result (page83)
Contents:
waveform data
Digital waveform data containing the channel
information such as vertical and horizontal
position of a signal for the entire memory length.
Contents: other
data
The following information is also included in the
waveform file.
 Firmware version  Time of acquisition
 Horizontal mode  Memory length
 Trigger level  Vertical units
 Vertical scale  Probe level
 Vertical position  Horizontal units