In my old tek workhorse it display 8 div and if I remember right (not so exactly) it show something like 200 ADC values on the screen. So signal can go maximum 56 over screen border.
Marmad, thanks for starting the review. I (and most certainly those newbies out there) never knew Owon before and because of your review I know the company -- I hope Owon sends you free oscilloscopes for life! I have a feel you have good inputs and if Owon were smart theyd send you stuff to test :>
Marmad, how's the Rigol 2072? Do you have a link for further reviews/ how its going, is 70Mhz good enough for the long term/etc? I planned to do what you had said - use the Owon first and if it gets serious, to get more powerful stuff later (either Owon or others)... However, I'm not sure how I can start learning electronics WITHOUT an oscilloscope (if SDS7102 will be ready in a Month or Two); Is there something I can start by using the audio port of a PC I can do while waiting?
CURRENT SDS7102 ISSUES
Akis, thanks for the recap on the "Issues".
OWON REALITY "SHOW OF QUALITY"
rf-loop, I must admit this is the first time in my life I'm experiencing "National Geographic style Reality Show -- from customer review (marmad)+ feedbacks(everyone) + replies (you, etc) + to factory floor and back!" I think it really gives customers/ potential customer a very good feel and trust in the Owon brand that -- there is a listening channel with capable technical support to get customers through problems. And it looks like if alot of things discussed were implemented, Owon would have a very strong and impressed group of people ready to say good things for the company. I really want to see a great Finale to the Show! (I just arrived upon just entering into the electronics arena).
Having been in the IT industry for some time, I really think Owon should take their time to stress test the new board so that old issues do not resurface and every bit of 'critical items' plus 'inexpensive and easy to do' that address the hardware root cause are certainly done right before shipment (as rf-loop said maybe up to 1 or 2 months). Maybe then 'practical firmware features' can come out later.
Marmad, thanks for starting the review. I (and most certainly those newbies out there) never knew Owon before and because of your review I know the company -- I hope Owon sends you free oscilloscopes for life! I have a feel you have good inputs and if Owon were smart theyd send you stuff to test :>
Marmad, how's the Rigol 2072? Do you have a link for further reviews/ how its going, is 70Mhz good enough for the long term/etc? I planned to do what you had said - use the Owon first and if it gets serious, to get more powerful stuff later (either Owon or others)... However, I'm not sure how I can start learning electronics WITHOUT an oscilloscope (if SDS7102 will be ready in a Month or Two); Is there something I can start by using the audio port of a PC I can do while waiting?
Thanks again guys :>
I can't speak for the other Owon SDS owners, but I won't have a "warm and fuzzy" feeling for Owon until I see an official acknowledgement of the ground noise issue and an offer to fix the scopes under warranty.
I can't speak for the other Owon SDS owners, but I won't have a "warm and fuzzy" feeling for Owon until I see an official acknowledgement of the ground noise issue and an offer to fix the scopes under warranty.I would not bet on warranty repair either. More likely strategy is to sweep the case under carpet and hope that everyone forget...
Well, SDS series is not a new product, it is sold from 2011. I would expect less problems, then it has.
I ordered the owon sds6062 decided to "roll the dice" with it. Still not sure if it suffers from the same problem, but when i get it (couple of weeks) ill let you guys know if its got the same issue as the 7102. I hope not
Maybe there is, but none that i know of marmad.
Buy it from a reputable dealer, communicating with them the fact that if you do get this issue, you'll want to get a working replacement or refund.
I can't speak for the other Owon SDS owners, but I won't have a "warm and fuzzy" feeling for Owon until I see an official acknowledgement of the ground noise issue and an offer to fix the scopes under warranty.I would not bet on warranty repair either. More likely strategy is to sweep the case under carpet and hope that everyone forget...
Well, I'm not sure it's fair to say that at this point - as far as I know, Owon has been pretty responsive in the past about resolving technical problems with the SDS line to their customers' satisfaction. But an official acknowledgement? I had to burst out laughing at that one! I'm really not trying to insult you here, but I'm guessing you haven't had much experience with Chinese companies.
The only thing I can't figure out is why the damn thing just hangs when I attempt to capture the screen as a image on a flash drive.
No offense taken - I haven't had much experience with Chinese manufacturers, but I am learning rapidly. I find this whole affair to be an interesting learning experience. I'll be pretty unhappy if they don't offer a solution to current owners, but I'll just move on and never buy from or recommend them again. I find the total lack of QC or product testing to be pretty amusing since those are the worst corners to cut if you are trying to break into a new segment of the test and measurement market.
So I just got an Odon SDS7102 with version 2.8.3 firmware, it has the 100mV GND noise on both channel 1 and 2 but so far that hasn't bothered me as I will probably never need to measure signals anywhere less than a volt for my applications. The only thing I can't figure out is why the damn thing just hangs when I attempt to capture the screen as a image on a flash drive. I can disconnect the flash drive and it'll go back to normal but looking at what it ends up writing on the drive, it's just a 0KB file. I can leave it sitting for more than necessary like 5 minutes and it won't save anything, it just sits there frozen.
So I just got an Odon SDS7102 with version 2.8.3 firmware, it has the 100mV GND noise on both channel 1 and 2 but so far that hasn't bothered me as I will probably never need to measure signals anywhere less than a volt for my applications. The only thing I can't figure out is why the damn thing just hangs when I attempt to capture the screen as a image on a flash drive. I can disconnect the flash drive and it'll go back to normal but looking at what it ends up writing on the drive, it's just a 0KB file. I can leave it sitting for more than necessary like 5 minutes and it won't save anything, it just sits there frozen.
Use a smaller size USB drive, it cannot handle the big ones. yet another bug
It's a miniature 16GB drive in a solid metal cast body which I use because shitty plastic ones always fall apart on me. If the scope cannot handle 16GB drives then this is truely a deal breaker to me.
It's a miniature 16GB drive in a solid metal cast body which I use because shitty plastic ones always fall apart on me. If the scope cannot handle 16GB drives then this is truely a deal breaker to me.
It is very clear and it is not any kind of bug:
In Owon User manual: The supported format of the USB disk: FAT32 file system, cluster size cannot exceed 4K.
Then Microsoft:
http://support.microsoft.com/kb/140365
Default cluster size for NTFS, FAT, and exFAT
Article ID: 140365
Image about FAT32 part of article