General > General Technical Chat

The Rigol DS1052E

<< < (58/166) > >>

Dynomo:
Modded mine to with serial cable and hyper terminal . Did some testing with 106 mhz signal on the scope and the mods working great here. Nice one  ;D

tristan:
Hi Guys

I just performed this operation on my scope too and have had good results. However I did have a slightly worrying few minutes.

I changed the S/N and the model as described here but the unit would revert to the DS1052E after a reboot. After trying 3/4 times I went into the utility/system info display and it was corrupted - the top half of the screen showed only random graphics. I didn't take a photo unfortunately. This also locked the scope up requiring a reboot to return to operation. Returning to the system info screen locked the unit up again.

After rebooting I was able to connect to the serial port and check the settings - this was the response:

--- Code: ---*IDN?
     Rigol Technologies,•–•–––––––•••–••••–––••––––––––•–––••––•–••—–––––•––•–––
–––•••–—••–•–•––•–•–••—•––•––•–•–••–•––•–•–•––––•––––•––•–•–––—••–•–––••,••–•–
•––•–•–••—•––•––•–•–••–•––•–•–•––––•––––•––•–•–––—••–•–––••,00.02.02.02.00

--- End code ---

I reset the model and serial number again and it cured the problem and now persists through power cycles.

Tristan

rossmoffett:

--- Quote from: flolic on March 17, 2010, 07:32:11 am ---
--- Quote from: rossmoffett on March 17, 2010, 06:07:54 am ---
 guess I'll be soldering my caps back in soon as I get back to Oklahoma.

--- End quote ---

I will not, because my 1102E has even greater bandwidth without them and I don't need BW limit function  ;D


--- End quote ---

Those are really great illustrations, given that, maybe I'll leave mine alone too!  I'm sick of taking the thing apart, for sure.

So far as there still being room for hardware improvement, that I'm not sure about.  According to an earlier post here, the real -3dB bandwidth is about 160 MHz on the DS1102E, and according to Dave, 1/10 of sampling rate is about the best a real-time readout can do.  That means that boosting the analog bandwidth more is only going to reduce the equivalent-time sampling noise, I think.  Your posted image has me wondering though, how far it could be pushed before it's really untrustworthy.  We have 400 MS/s 100 MHz model C Rigol scopes at school, and I know that they pale in comparison to the DS1052E.  The low sample rate makes it look like all noise anywhere over 50 MHz or so.  That makes me thing that probably this scope will do the same as it approaches 200 Mhz.

I'm extremely pleased as it is!

rf-loop:
ADC clock phasenoise and jitter can be better. (maybe not impossible)

Analog channel after BNC to ADC can be better. (less noise and BW flatness better)

Both scopes 1102 and original or (commandmod) 1052 suffer BW flatness problem. Not so bad but.. >1.7dB @ 100MHz (1052Emod and 1102E original) is not good. Also same or more bad but different frequency in 1052Eorig. It is maybe still acceptable in this priceclass. But nobody can not tell that it is good today. It is better if it is more flat, after 100 or more it can drop more fast. Now it continues nearly "endless". I can find components after digitzing even over 500MHz. Some may be ..oh nice... but I think it is more bad. (these over Nyquist frequencies are not allways good to see in digital oscilloscopes, they make many bad effects in my opinion. These scopes need more flatness and then better BW limiting after some reasonable freq.

But if we think these rigol prices and not want hobby class "High-End" (professional High-End is totally other case)... after commandmod 1052 looks like lot lot of value for money ... unbelievable exellent for many purposes.

Now we can wait what Rigol do.
In China this mod case have make some discussions.

I wait this day come soon we can see DS1102E's ... not original factory made...
It is unbelievable cheap to make lot of labels to front and back... some RMB and you have lot of.
How peoples can know that they have buy original Rigol made 1102E  ;)
Maybe we can think what they think in Rigol.... what is in next FW update...this is only quessing. ;)

Simon:
I'm sure rigol will find a workaround in the new firmware. it's only those of us with early 1052's that are blessed with this ability to mod. later scopes will be jamed for sure

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod