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Workshop Siglent 200MHz SPO/DSO

Vrat Founder Admin

As you may have seen recently, I decided to move on my Hantek 100MHz MSO. No reason other than I really had no further use ( I bought it for laserdisc repairs) for a DSO with logical analyser, so felt it would be better to pass it on to someone who would find a use for it. Hopefully Jim will have oodles of use for it on his interesting FM pantry transmitter & radio Raspberry pi/ Si4713 project.

Anyway, that left me with a decision to make, what to replace it with. I guess like many of you I ended up following Dave Jones' evaluations and to cut a very long story short, I ended up selecting a Siglent SDS1202X-E  SPO. This is a 200MHz super phosphor scope which received pretty good reviews all round. I'm "Super" impressed with the "Super Phosphor", it really does a good job of emulating an analogue scope. This is difficult to relay with a static photo, but in real-time it is very impressive.

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Below is the standard brochure photo showing a modulated waveform and the phosphor gradient. Next is me showing how it shows colour bar, that's probably the best rendition I've seen on a DSO, and I've only just started playing with the options. I had my analogue TEK on recently and the SPO emulates the CRT "shimmering" (the best way I can describe it) with great accuracy.

It'll get used in anger when I restart the G6 project, which hopefully should be very soon.


Some specs

SIGLENT SDS1202X-E Super Phosphor Oscilloscope

The SDS1202X-E is a 200MHz, 2CH Super Phosphor Oscilloscope with a maximum sample rate of 1GSa/s and a standard record length of 14 Mpts. For ease-of-use, the most commonly used functions can be accessed with its user-friendly front panel design. The SDS1000X-E Series employs a new generation of SPO (Super Phosphor Oscilloscope) technology that provides excellent signal fidelity and performance. The system noise is also lower than similar products in the industry. It comes with a minimum vertical input range of 500 uV/div, an innovative digital trigger system with high sensitivity and low jitter, and a waveform capture rate of 400,000 frames/sec (sequence mode)

The SDS1000X-E also employs a 256-level intensity grading display function and a colour temperature display mode not found in other models in this class. SIGLENT’s latest oscilloscopes offering supports multiple powerful triggering modes including serial bus triggering. Serial decoding is free and includes IIC, SPI, UART, CAN and LIN. History waveform recording and sequential triggering enable extended waveform recording and analysis. Another powerful addition is the new 1 Mpt FFT math function that gives the SDS1000X-E very high frequency resolution when observing signal spectra. The new design also includes a hardware co-processor that delivers measurements quickly and accurately. The features and performance of SIGLENT’s new SDS1000X-E series cannot be matched anywhere else in this price class.

  • Intelligent trigger: Edge, Slope, Pulse, Width, Window, Runt, Interval, Timeout (Dropout), and Pattern
  • Free serial bus triggering and decoding: IIC, SPI, UART, RS232, CAN and LIN
  • Video triggers and supports HDTV
  • Low background noise and 500 μV/div to 10V / div voltage scales
  • 10 types of one-button shortcuts, supports Auto setup, Default, Cursors, Measure, Roll, History, Display/Persist, Clear Sweep, Zoom and Print
  • Segmented acquisition (Sequence) mode, dividing the maximum record length into multiple segments (up to 80,000), according to trigger conditions set by the user, with a vert small dead time segment to capture the qualifying event
  • History waveform record (History) function, the maximum recorded waveform length is 80,000 frames
  • Automatic measurement function on 38 parameters, supports Statistics, Gating measurement, Math measurement, History measurement, and Ref measurement
  • 1 Mpts FFT
  • True measurement and Math can use all 14 Mpts of memory
  • The preset key can be customised for user settings or factory “defaults”
  • Security Erase mode
  • Highspeed hardware based Pass/Fail function
  • Lage 7-inch TFT-LCD display with 800 * 480 resolution
  • Multiple interfaces types: USB Host, USB Device (USB-TMC), LAN (VXI-11), Pass/Fail, Trigger Out
  • Supports SCPI remote control commands
  • Multi-language display and embedded help
  • Browser control/onboard webpage for software free monitoring (4 channel models only)
  • Bode plotting function controls external generator (SIGLENT SDG or SAG generators, 4 channel models only)
Topic starter Posted : 15/06/2021 5:42 pm
Noble V-Ratter Registered

Nice scope! They have certainly come a long way since those Tektronix TDS-210’s. You would probably like the ones we have at work, we got some new Lecroy HD scopes, I’ll get the model number off one tomorrow, they are really nice to use!



Posted : 15/06/2021 10:40 pm
Vrat Founder Admin
Posted by: @lloyd

They have certainly come a long way since those Tektronix TDS-210’s

I've still got my old Black & White 60MHz TEK TDS1002, and my colour 50MHz TEK TDS1052B, both these illustrate the stark difference to the resolution the new SPO manages, as I say it looks much more like my analogue TEK 2205.

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This shows how test card F is resolved by the 1997 TDS1002, The 2003 TBS 1052B and the New Siglent digital Phosphor.

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Topic starter Posted : 15/06/2021 11:06 pm
Lloyd liked