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how to connect sdg2000 to sds1000x hd for bode plot?
Jelbert:
Hi,
I am setting up my new SDS1204X HD and I also ordered a SDG2042X to use in combination with the scope. But now I'm looking in the setup of the scope and I can't find a way to connect them both. The SDG2042x still has to arrive so I can't test it live.
In the beginning of march 2024 I talked to the sales guy of Siglent.eu about the SDS800X HD I was back then considering to buy. We talked about connecting the USB AWG but also the SDG1000x to connect to the scope. As far as I can remember it was no problem to connect those instruments to use with bode plot. I did not order my instruments with siglent.eu because he never send my an offerte as he promised.
During the search for the right scope I can remember a tutorial that talked about connecting an SDG1000x via lan to the scope, but it could also have been an SDS2000 or SDS3000.
So can anyone tell me if it is possible to connect an SDG2042X to the SDS1204X HD and how? Or should I cancel the order and get the USB device instead?
tszaboo:
Hi. I did that a few times. You can either connect them with USB, the scope as Type A USB host. Or Ethernet, you have to tell the scope the IP address of the generator.
You connect the generator output to 1 channel (and DUT input), and the DUT output to another channel. Up to 10MHz or so you don't really have to think about reflections. Above that, yes. A BNC to scope probe adapter, BNC T adapters BNC-BNC cables are useful.
You can also mirror CH1 and CH2 on the generator, and use CH2 for the DUT.
IMHO buy the dedicated generator, it's much better performance and usability.
Kawakneurder:
--- Quote ---So can anyone tell me if it is possible to connect an SDG2042X to the SDS1204X HD and how?
--- End quote ---
What exactly is the problem, why do you think it wouldn't work the normal way?
There's a couple of great youtube videos that illustrate how you can use a siglent scope for bode plotting, and I cannot see why it would be different for your particular combination of scope/AWG:
--- Quote ---Or should I cancel the order and get the USB device instead?
--- End quote ---
An external AWG can go much higher in frequency, 120Mhz ('hacked') compared to just 25mhz for the USB option. It additionally has 16 bits instead of 14 (although not so relevant for bode plots, as the scope limits the resolution anyway)
An external AWG would also be much more flexible for use in practice, more waveforms, easier to configure, larger amplitude range, better resolution/stability, more flexibility.....
At least in my eyes, the extra money would definitely be worth it. ymmv.
Jelbert:
thank you. It does not mention this compatibility in the manual and I was getting worried.
Kawakneurder:
--- Quote from: Jelbert on August 21, 2024, 12:18:30 pm ---thank you. It does not mention this compatibility in the manual and I was getting worried.
--- End quote ---
I think this is a bit of an 'RTFM moment' :-/O
SDS1000x-HD User manual, p201:
--- Quote ---26. Bode Plot
The SDS1000X HD supports an automatic Bode plot function. This function provides a frequency
response curve of the device-under-test as well as the interface for output sweep parameter control
and data display settings. At this time, either the SIGLENT SAG1021I arbitrary waveform generator
or one of a SIGLENT SDG series arbitrary function generators are supported.
--- End quote ---
If you want to know how to use it, it also provides a step-by-step guide on configuring the instrument to use it in either USB or LAN mode (and some other nifty tricks related to display and measurements).
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