General > General Technical Chat
The Rigol DS1052E
<< < (119/166) > >>
bushing:

--- Quote from: wd5gnr on April 19, 2010, 01:53:33 pm ---My Russian is none too good, so Google translate had... um,... amusing results.

--- End quote ---

Mine's a bit rusty, but I'll see if I can clean up Google's work a bit:


--- Quote ---Yesterday, Sasha (aka Alex_lv) and I worked on hacking a Rigol DS1052E into a DS1102E.  We used test signal generators (Tektronix SG503, Tektronix PG506) and 50-ohm load (by Tektronix), all controlled by a Tektronix 2567A.  In general, everything is working adequately with the Rigol (except of course the implementation of sinx / x).  It's a nice little machine with 00.02.02 SP2 installed.

The band at -3dB 146MHz has a rise time of 2.4 ... 2.48ns (at rise-time generator, <1ns), a fall-time of 5ns (the generator's fall-time is not normalized, the 2467 shows 5ns), if one takes the inverted signal from PG506 (Fast Rise Output Falling) the fall-time is  2.4 ... 2.48ns. The internal frequency counter can make mistakes in the last digit (depending on the shape of the signal) was also observed with a bug, sometimes it can show exactly twice the frequency, compared to the standard Fluke PM6685.

[...]
As well as sweat for all the leads that came to hand [?!], all the probes are compensated, measured with a needle to minimize inductance and get the correct results but also from the grounded alligatr clip in order to see how it affects the inductance for each of the probe.

--- End quote ---
(Actually, it *does* literally say "grounded crocodile!"!)



--- Quote from: wd5gnr on April 19, 2010, 01:53:33 pm ---Same think happened, I think, with the ZeroPlus Logic Cube logic analyzer. They made the FPGA ground all inputs not allowed for the model. Too bad I missed that one :-)

--- End quote ---

Sort of.  I think it's coincidence, the "reaction" was too quick when you're talking about modifying actual chips.   You can still extend the sample depth to 128 Ksamples (in software), and I've even extended it to 2Msamples/channel by replacing the SRAM chip -- see http://lostscrews.com/viewtopic.php?f=16&t=84
rf-loop:
Are there any information about FW 02.04 changes after 02.02.SP2
What I can see there is some change in DSP module: rev 2.15 => 2.20

Do anybody know anything about DS1000E series factory / service calibration procedure. (I do not mean normal end user selfcal)
How to start this procedure etc...  End users "service manual" do not tell anything about it. (of course).

shtoz:
bushing, not bad translation :)

--- Quote ---As well as sweat for all the leads that came to hand [?!]
--- End quote ---
I tested all probes floating around me :)
Test was with and without ground lead.
Yesterday i try 02.04, LCD refresh rate is bigger, nothing else, sinx/x problem nor resolved.
Simon:
02.04 give faster screen updates ? the 02.02 firmaware is horibly slow above 100mS/div
RayJones:
Um, 100ms/div would take 1.2 second just to capture the data with 12 divisions shown (hiding the menu)......
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod