GW Instek GDS-1000A Series User Manual - Manual (Page 125)

FAQ
125
The accuracy does not match the specifications.
Make sure the device is powered on for at least 30 minutes, within
+20°C~+30°C. This is necessary to stabilize the unit to match the
specification.
The SD card slot does not accept my card.
Make sure the SD card is formatted as FAT or FAT32. Try a different
SD card brand if you are still having trouble.
The oscilloscope will not allow a 2M waveform to be saved.
Make sure that only 1 channel is active. Make sure that the signal
has been triggered and that the STOP or Single key has been pressed.
Ensure the time base is slower than 10 ns/div. See page 94.
For more information, contact your local dealer or GWInstek at
www.gwinstek.com / [email protected].