Products > Test Equipment
DG4000 - a firmware investigation
ted572:
--- Quote from: Teneyes on December 09, 2013, 05:29:21 am ---
--- Quote from: ted572 on December 07, 2013, 03:01:04 pm ---DG4000 Calibration Restoration:
The calibration restoration is effective for both channels, it isn't necessary to repeat each cal. routine for the other channel.
--- End quote ---
I am not sure of "effective for both channels" is true ??
In pics I show a glitch on chan 2 out (6sec sweep 1->160MHz) at about 24 MHz
there was no clitch on Chan 1
I restored ALL of Chan 2 HFLAT and the glitch was corrected
--- End quote ---
I have had others tell me that sometimes they have a glitch, fault, or otherwise strange behavior with the DG4000, and they reset or Power OFF/ON and the issue goes away. Have you observed anything like this? Anyway what you reported above could possibly this kind of thing. No one else has said anything about having do do a Cal. for both channels. Although of course it is possible, I think somewhat unlikely.
Teneyes:
Here are 2 Animated displays of an auto freq. sweep of a sine wave on DG4000
1) from 10-160MHz
2) from 10-161MHz
DSO recording was used to capture 160 frames at 75msec during the sweep
every 10th frame is shown:
on 1) very little variation of Vp-p
on 2) Vp-p starts high and ends at correct value
Again does anyone see this variation on their Rigol DG4000??
Cannot say this is a Bug ;D
KedasProbe:
Is 10-159MHz also OK?
(in theory you can't enter >160Mhz so...)
Rigol-Friend:
Yes this "bug" is known. See https://www.eevblog.com/forum/testgear/dg4000-a-firmware-investigation/msg343895/#msg343895
I think, it's maybe a problem with the hardware. Rigol offers the "right" 4162 with maximum frequency limited of 160 Mhz.
I think that has a reason.
whotopia:
Hi all,
Silly question, but could someone please post instructions on how to upgrade firmware on DG4000? I got a DG4062 for Xmas, ran the cengen output and would now like to upgrade to latest firmware. Unfortunately the Rigol site's beyondmeasure.rigoltech site seem to not be working for the past few days, and thus I can'd download http://beyondmeasure.rigoltech.com/acton/attachment/1579/f-0115/0/-/-/-/-/file.pdf (the upgrade instructions). (yes I've search around this forum and others)
Thanks!
Steven
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