Products > Test Equipment
12Bit Scope additional/replacement to Siglent 2104X Plus & Rigol DS1054Z
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points2:
Hi,
about "what 12b scope to replace by 8bit scope ?"
(maybe I'm wrong, please correct me if so)

my answer is : 12bit vs 8bit, no one cares about that !
what matters is "GS/s" !

12bit vs 8bit = the cosmetic stuff => on the Y-axis.
But what costs much is the X-axis resolution ! <= the bottleneck (cost related) of any scope is the X-axis, not the Y-axis !
 :palm:
Markus2801A:

--- Quote from: TomKatt on June 24, 2024, 01:57:47 pm ---It took me about 5 minutes to 'upgrade' my 70 MHz 50 Mpt SDS804X HD into a 200 MHz 100 Mpt SDS824X HD ;-)   So simple I hesitate to even call it a 'hack'.

--- End quote ---

Thanks for the clarification!  :D It will save me money  ^-^


--- Quote from: Fungus on June 24, 2024, 02:03:38 pm ---Yes, a DHO804 can become a DHO924 via a simple hack.
(the model is stored in a file so just substitute the file and restart the 'scope app).

--- End quote ---

 Okay, but than there are statements like this:


--- Quote from: Fungus on June 24, 2024, 10:34:54 pm ---
--- Quote from: 2N3055 on June 24, 2024, 10:08:45 pm ---Ignore anybody that tells you that you can "upgrade" DHO800 to DHO900. They are NOT same hardware,

--- End quote ---
You can enable all DHO900 software options and all DHO900 bandwidth/memory options.

--- End quote ---


--- Quote from: Fungus on June 24, 2024, 10:12:52 pm ---
--- Quote from: Martin72 on June 24, 2024, 09:34:19 pm ---
--- Quote ---Yes, a DHO804 can become a DHO924 via a simple hack
--- End quote ---

I wouldn't do that. There is no need,
A DHO804 and "gently" upgrade it to the 814.

--- End quote ---

Yes, I was just keeping the answer simple ("yes!") but the 814 with memory upgrade is the sanest variation of these 'scopes.

--- End quote ---


Now I'm confused, are DHO800 fully upgradeable to DHO900 Series or do the DHO900 Series have different Hardware, so an upgrade is not possible via software hack?
Also I don`t get it why you only should gently upgrade to DHO814?


--- Quote from: points2 on June 25, 2024, 05:09:33 am ---
my answer is : 12bit vs 8bit, no one cares about that !
what matters is "GS/s" !

12bit vs 8bit = the cosmetic stuff => on the Y-axis.
But what costs much is the X-axis resolution ! <= the bottleneck (cost related) of any scope is the X-axis, not the Y-axis !
 :palm:

--- End quote ---

Thanks for that, I second that but additional to GS/s I think 12Bits are really "nice to have" and nowadays affordable.

Just to bring a this Idea in in:

--- Quote from: Martin72 on June 24, 2024, 09:34:19 pm ---And I still think that if he wants to experience a general "over-all" improvement, then he should sell his two scopes and get an SDS2000X HD.

--- End quote ---

Somewhere here on eevblog I read "SDS2000X HD backdoor closed", so it's not possible to upgrade bandwidth like I was able to do on my SDS2104X?




Geoff-AU:

--- Quote from: points2 on June 25, 2024, 05:09:33 am ---my answer is : 12bit vs 8bit, no one cares about that !
what matters is "GS/s" !

--- End quote ---

Give the man a fast comparator and he's happy  :P
2N3055:

--- Quote from: Markus2801A on June 25, 2024, 06:23:59 am ---Now I'm confused, are DHO800 fully upgradeable to DHO900 Series or do the DHO900 Series have different Hardware, so an upgrade is not possible via software hack?
Also I don`t get it why you only should gently upgrade to DHO814?

--- End quote ---

Let me repeat.


--- Quote from: 2N3055 on June 24, 2024, 10:08:45 pm ---Ignore anybody that tells you that you can "upgrade" DHO800 to DHO900. They are NOT same hardware, and DHO900 is horrible and failed design. Either get DHO800 and stick with it or get something else.

--- End quote ---

DHO800 has maximum sample rate of 1.25 GS/s that drops to quarter of that when using 4 ch. So you are sampling at 312.5 MS/s. Meaning no more than 150 MHz can be sampled.
Which DHO814 has about 150-170 MHz BW and that combination seems to work fine.

SDS800xHD from Siglent samples at 2GS->1GS->500MS/s as you go so that one can support up to 240 MHz without problems with all 4 Ch on.

If you want simple, cheapest 12 bit scope, DHO814 will give you low noise and basic functions. I don't know what is the state of bugs at this moment, I gave up on tracking that.
DHO800 also has HDMI monitor output if that might be important to you (for school presentations, for instance).

SD800xHD has very good Web interface OTOH, that can be used for presentations too.
If you want scope that will have quite advanced analysis and math capabilities, mapping of network drives for easier data sharing, good BODE plotting (you'll need additional AWG for that, but any number of Siglent AWG work for this) etc, than SDS8000xHD is the choice.
Since you already have SDS2000X+, 800xHD drives pretty much the same..
tautech:

--- Quote from: Markus2801A on June 25, 2024, 06:23:59 am ---Somewhere here on eevblog I read "SDS2000X HD backdoor closed", so it's not possible to upgrade bandwidth like I was able to do on my SDS2104X?

--- End quote ---
No.
Hack is not public yet.

For now if you must have 12bit SDS800X HD or 1000X HD and upgrade BW capability are your best bets.
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