RIGOL DS1054Z 50MHz OSCILLOSCOPE Unlocked 4 Channels up tp 1GS/s 7 In" WVGA 12Mpts Memory Digital Oscilloscope 30,000wfm

Product Information

Advanced display and analysis capabilities combine with deep memory and high waveform update rate in RIGOL's UltraVision oscilloscope technology Modern oscilloscopes are often loaded with features, but every now and then you run into a feature that seems easy to implement yet isn’t available. [kgsws] wanted to use his Rigol DS1074 to show live measurements in his YouTube videos, but found out that this scope doesn’t support video output. Not to be deterred, [kgsws] decided to add this feature himself. In the video embedded below, he describes in detail the process of adding a USB Video Capture (UVC) interface to his oscilloscope. What the Rigol-hater club discovered is that when you turn sin(x)/x "Off", it doesn't really turn off. Instead it changes to a "Rigol interpolation".

The basic idea was to find the signals going into the scope’s display and read them out using a Cypress EZ-USB board. This is a development board that can be used to design USB devices, and supports the UVC mode. However, with no documentation of any of the Rigol’s internal circuitry [kgsws] had to probe the display connector to find out which pin carried which signal. And since he had no other scope available than this Rigol, he hooked up the various bits of the disassembled instrument so that it could (awkwardly) probe its own internal signals. After all the channels finish N samples at the same time, N can be 2, 4, 8, 16, 32, 64, 128, 256, 512 or 1024. Standard logic probe for DS1000Z Plus. Upgrades a DS1000Z Plus or DS1000Z-S Plus with 16 digital channels.note: Nowhere is it written what "sin(x)/x turned off" should be, it's undefined, it's an error condition...) Period, Frequency, Rise Time, Fall Time, Positive Pulse Width, Negative Pulse Width, Positive Duty Cycle, The Rigol DS1054Z represents a remarkable breakthrough in price and performance. It's one of the best general-purpose 4 channel digital storage oscilloscopes available for the maker electronics space. However, the issue I have, and which has been discussed endlessly elsewhere, is that the 'DOTS' mode displays dots which are not necessarily data samples. The whole point of wanting to eliminate interpolation is that sometimes you want to see the raw data that the scope is receiving so you have a better idea of what it actually knows and what it is 'reconstructing'. This is very important because the reconstruction theory depends on certain conditions being met--bandwidth limitations and so on--and sometimes there isn't an actual guarantee that they ARE met. I've seen some pretty bizarre results from this on and not just on contrived corner-case examples. I think it is a limitation, and more importantly, it isn't an obviously apparent one. Sometimes the dots are sample points--and sometimes they aren't. I'm not sure what it is doing and I haven't seen a clear explanation yet.

DS1000Z-E Datasheet & Specs (Spanish) DS1000Z-E Datasheet & Specs DS1000Z DataSheet & Specs (Spanish) DS1000Z DataSheet & Specs Compare Rigol Product Feature Tired of squinting at the small numbers on the oscilloscope display, [Alfred] aka [Gaze@] decided to take matters into his own hands and wrote yet another tool to remotely view images from a Rigol DS1054Z. At least that was the initial idea. But, it grew unexpectedly — as [Alfred] says, “the more the project turned out to be fun, the more it got out of hand”. We know the feeling well. We don't know the exact math of this interpolation, hence the FUD. The only 'issue' is that it's not what the OCD types think "sin(x)/x turned off" ought to be. Some oscilloscopes have the option to turn off sin(x)/x signal reconstruction. Not all of them do (most expensive ones don't!) because it makes no sense to do so. It's a fundamental part of signal reconstruction and drawing the wiggly lines on screen. Ease up on the "Rigol-hater" rhetoric. The issues are more complex than that. Interpolation is involved with triggering, as well as drawing your squiggly line. IMO, the Rigol does a really good job of generating a stable trigger overall--better in fact than any of my analog scopes except the 2465B, and excepting low signal levels where some of the analog scopes trigger cleanly on much lower signals.In addition to being able to simply view and export the screen, the program implements waveform measurements (we’re not sure if it is using the measurement ability of the ‘scope, or actually performing measurements in the program). And as you can see in the animated GIF of the program in operation over on the GitHub repository, the numbers are certainly clear and legible. His problem of squinting at the small screen has indeed been solved.