Computing stuff tied to the physical world

Meet the Owon SDS 7102V

In Hardware on May 4, 2013 at 00:01

Here’s another “loaner” from David Menting, this time it’s his scope, the Owon SDS 7102V – which is sales-speak for a dual-channel 100 MHz digital storage oscilloscope:


This unit is available in the Netherlands from EleShop, for € 450 incl VAT, which makes it only marginally more expensive than the ubiquitous Rigol DS1052E with 320×240 display and 50 MHz bandwidth.

This thing is amazingly thin (total size is 7 x 34 x 16 cm), yet packs an 800 x 600 pixel color LCD screen to present a really detailed display (click to see the full size image):


In a way, more is better. But keep in mind that the 8-bit ADC’s typically used in modern “affordable” scopes can only measure 256 different voltage levels full-scale. To really benefit from 512 or more vertical pixels resolution, you either need a 9-bit ADC or some sort of oversampling and averaging. Having said that, I would definitely consider 320×240 as low end nowadays – this screen is a huge improvement, in displaying much finer detail as well as in helping estimate voltage levels at a glance.

Here’s an example of just how much screen real-estate this scope has:


You might recognise the two waveforms above as the 10 MHz and 25 MHz signals generated by my signal generator – same as used in this recent weblog post.

Tomorrow, I’ll show you the front panel and I’ll add some comparative notes…

  1. Looks interesting… I had to feed the page through google translate, glad to see it has “Engelstalige handleiding” :-)

    Interested to see what you make of it.

  2. I’ve just bought one of these, but reviews were sparse, so I’ll be interested to see what you think.

    It seems fine, but I don’t have a signal generator, so hard to test it definitively — and my last oscilloscope was a dual trace 20MHz I bought in 1984, so I don’t have much context to compare it to. Incidentally, that scope was $700 Australian, this was $450 — and of course a 1984 dollar bought rather more than the 2013 variety!

    • Congrats on your new scope! And almost 30 years with the previous one, not bad – this one will no doubt be a treat in comparison.

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