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Siglent SDS1104X-E or Rigol DHO814
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bang:
I'm in need of an oscilloscope and I have been looking at the SDS1104X-E and the DHO814. I've only used high-end oscilloscopes at my university, so my knownledge of what the main bottleneck are on a low-end oscilloscope is non existing. I observed that the SDS1104X-E have 2 ADC's for all 4 channels, where the DHO814 only have 1 ADC for all 4 channels, with only 1MPTS per channel when using all 4CH, thus the SDS1104X-E in my eyes already seems way better by my current knownledge of oscilloscope. However the DHO814 have some nice features like the touch screen and HDMI, but the 100MHz 4CH version is 625EU whereby the 100MHz SDS1104X-E is only 510EU.

Thus my questions are:

* Will the 30MHz extra BW of the DHO814 (100MHz, 625EU) compared to the DHO804 (70MHz, 500EU) make any sense?
* Is SDS1104X-E (100MHz, 510EU) with 2 ADCs better than the DHO814 (100MHz, 625EU) with only 1 ADC?
* What would you pick, and why?
The oscilloscope will be used for general purposes (Power Circuits, Microcontrollers) and maybe some commercial products in the future, so I don't really have any requirements, beside I want the best bang for the bucks of a low-end/mid-end oscilloscope.
mouz:
Will the 30MHz extra BW of the DHO814 (100MHz, 625EU) compared to the DHO804 (70MHz, 500EU) make any sense?

Yes if you want to ride out your warranty period. No, if you are prepared to hack, (and possibly loose warranty)

What would you pick, and why?

Personally I lean towards the Rigol DHO for the VESA mount and portability (USB power supply)
csuhi17:
The VESA mount is a bit tricky, because if you choose the wrong one, you can really cut off the air path.
Fungus:

--- Quote from: bang on December 18, 2023, 12:35:57 pm --- I observed that the SDS1104X-E have 2 ADC's for all 4 channels, where the DHO814 only have 1 ADC for all 4 channels, with only 1MPTS per channel when using all 4CH, thus the SDS1104X-E in my eyes already seems way better by my current knownledge of oscilloscope.

--- End quote ---

The 1Mpts is easily hackable to 10Mpts per channel. The number of ADCs makes very little difference.


--- Quote from: bang on December 18, 2023, 12:35:57 pm ---However the DHO814 have some nice features like the touch screen and HDMI, but the 100MHz 4CH version is 625EU whereby the 100MHz SDS1104X-E is only 510EU.

--- End quote ---

You don't need the DHO814. The DHO804 can easily be unlocked to 200Mhz real measured bandwidth.

(or even higher but I wouldn't recommend it because the 1.25GHz sample rate isn't really enough for the higher bandwidths)


--- Quote from: bang on December 18, 2023, 12:35:57 pm ---Thus my questions are:
Will the 30MHz extra BW of the DHO814 (100MHz, 625EU) compared to the DHO804 (70MHz, 500EU) make any sense?

--- End quote ---

No, because both models are identical inside. The only difference is a file on the disk with either "DHO804" or "DHO814" in it.

(...and all you need is an Ethernet cable to edit that file).


--- Quote from: bang on December 18, 2023, 12:35:57 pm ---What would you pick, and why?[/li][/list]

--- End quote ---

Easy choice: DHO804, because of touch screen, etc.

It's just much more modern.

(and a lot smaller and cuter, too...)
Fungus:

--- Quote from: mouz on December 18, 2023, 04:16:21 pm ---Yes if you want to ride out your warranty period. No, if you are prepared to hack, (and possibly loose warranty)

--- End quote ---

Why would it lose warranty?

You don't have to open the case and the hack is completely reversible.

If the 'scope is dead they'll never know you hacked it.

If it isn't dead you can change it back to a DHO804 before you send it in.
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