New scope... - diyAudio
Go Back   Home > Forums > Blogs > abraxalito

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Rate this Entry

New scope...

Posted 2nd June 2010 at 04:59 AM by abraxalito
Updated 5th March 2012 at 02:52 AM by abraxalito

Click the image to open in full size.

Bought this (well not quite this one, mine has Chinese text on the panel) little puppy yesterday as my old UNI-T was just getting too frustrating to use. In particular its triggering ability is almost useless, giving way too much jitter. That added to the trig level encoder being majorly unreliable (its just over a year old) and lots of apparently self-induced noise on the trace meant I decided to bite the bullet. And boy I'm glad I did - its like getting a new pair of HD800s to replace my aged Sony CD3000s, everything is much clearer.... (and no, I haven't made that particular upgrade yet).

About six months ago I first noticed the younger sibling of this scope in a shop window in the local electronics market. I was blown away - a widescreen scope? That screen was drop dead gorgeous! This pic really doesn't do it justice so hopefully I'll post up one of my own pics soon.

Having been immediately sold on the screen, the doubts began to set in. Its an unknown brand for one. Second, I already have a scope - why would I need another one? Ignoring my second objection for now, I did some research into Chinese brand scopes, and found that by and large the most respected name is Rigol. I'd originally bought my UNI-T because I recognised the brand (I have one of their multimeters and UNI-T is sold in UK through Farnell) but really brand recognition I've concluded is simply not enough when buying something as essential as a scope. Tek of course is the cost-no-object purchase, but here they're even more expensive than back in UK so that's ruled out on principle.

I found that with the Rigol, its not necessary to stump up the cash for the 100MHz model (around 3300CNY) but that the much cheaper 50MHz (1800CNY) model can be firmware upgraded to perform the same. Dave's EEVblog shows how. That's a ridiculously low price for 100MHz performance (in dollar terms, about $265).

So I went and had a play with the Rigol, taking along my QA-550 wav player to see how much better than the UNI-T it was. No doubt about it, the jitter and noise I was seeing simply wasn't there on the Rigol. The Rigol also allows the trig point to be much earlier in time compared to the portion of the waveform being viewed, so jitter can be seen down to a lower frequency. But the Rigol's screen was merely functional when compared to the Tekway, having seen such eye candy I knew the more washed out colours of the Rigol could never satisfy. The Tekway produced similar results to the Rigol when I played with it in the shop, only that huge screen gives a far more spacious feel - there's so much more information on the display and yet it doesn't feel at all cramped. The difference in resolution is substantial - 320 x 240 against 800 x 480. No contest so Tekway it was.

On getting it home and powering up, the initial difficulty was that its menus are all in Chinese with no language options available. No matter, the English language user manual is available online. There's one other thing too that I failed to notice in the shop - the thing is dead quiet - it seems to have no fan, or if it does its not running. The UNI-T's fan was louder than my PC's, very distracting, especially disturbing when listening to music. Apart from minor concerns about whether the new scope will overheat in the longer term (the upcoming long hot summer will tell), I'm really over the moon with this new toy
Views 2468 Comments 8 Email Blog Entry
Total Comments 8

Comments

  1. Old Comment
    Bas Horneman's Avatar
    Nice toy indeed...
    permalink
    Posted 9th June 2010 at 11:57 AM by Bas Horneman Bas Horneman is offline
  2. Old Comment
    Nazar_lv's Avatar
    Tekway`s osc is nice, very pleasure LCD, i see one model but preferred Rigols ds1052e
    permalink
    Posted 15th June 2010 at 05:25 PM by Nazar_lv Nazar_lv is offline
  3. Old Comment
    abraxalito's Avatar
    Quote:
    Originally Posted by Nazar_lv View Comment
    Tekway`s osc is nice, very pleasure LCD, i see one model but preferred Rigols ds1052e
    Well the Rigol 50MHz is considerably cheaper here, around half the price. Anything else you liked better about the Rigol? It has quite a loud fan whereas the Tekway is totally silent
    permalink
    Posted 16th June 2010 at 01:00 AM by abraxalito abraxalito is offline
  4. Old Comment
    Quote:
    That's a ridiculously low price for 100MHz performance (in dollar terms, about $265)]
    And where do you find Rigol DS1052 for 265$?
    The lowest price in Europe i was able to find was arround 480, which is about 600$.
    permalink
    Posted 9th July 2010 at 11:42 PM by omnix omnix is offline
  5. Old Comment
    abraxalito's Avatar
    Quote:
    Originally Posted by omnix View Comment
    And where do you find Rigol DS1052 for 265$?
    The lowest price in Europe i was able to find was arround 480, which is about 600$.
    I'm in China, guess its a big advantage to live where they're made. Very low middle-man markup.
    permalink
    Posted 26th July 2010 at 06:51 AM by abraxalito abraxalito is offline
  6. Old Comment
    I have one of these as well, also in Chinese.
    In terms of triggering, it has the same circuitry inside as the Rigol (which I also use) so the triggering should be identical.

    What I would like to find out is how to change the menus etc from Chinese to English.

    I understand that it is just a single bit in the EEPROM but which one.
    Also you need the Tekway password to get into the software and data via the rear USB port. So far I have not been able to find out what that is.

    Anyone have any ideas?
    permalink
    Posted 2nd August 2010 at 11:58 AM by Bruwed Bruwed is offline
  7. Old Comment
    u can visit the rigol's website,and download the specification in english www.rigol.com
    permalink
    Posted 3rd August 2010 at 12:12 PM by henjoyan henjoyan is offline
  8. Old Comment
    Quote:
    Originally Posted by henjoyan View Comment
    u can visit the rigol's website,and download the specification in english www.rigol.com
    Of course, you can also visit the Tekway site at Tekway Technologies Co.,Ltd for the English documents and software for that scope as well.

    But it still does not help.
    Tekway just will not communicate with customers.
    permalink
    Posted 4th August 2010 at 06:43 AM by Bruwed Bruwed is offline
 
Hide this!Advertise here!

New To Site? Need Help?

All times are GMT. The time now is 02:43 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2