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Siglent New SDS800X HD First Bactch Unboxing And Tests And Teardown !

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Antonio90:

--- Quote from: tv84 on December 27, 2023, 09:53:18 am ---
--- Quote from: PELL on December 27, 2023, 05:09:42 am ---@tv84: The SCPI command return a board version, see in the picture :)

--- End quote ---

That shows that the scope uses the public keygen.  ;)

--- End quote ---
And also that it could be updated at any time to use the dynamic key? Or that doesn't follow?

PELL:
Update: 350M bandwidth white noise input to check frequency repones after hacking the scope to 200M

The -3dB point is around 250MHz I guess?

Edit: Also notice, that the input is terminated with a pretty low-quality external 50ohm connector, which causes some roughness to the input signal

tv84:

--- Quote from: Antonio90 on December 27, 2023, 10:00:43 am ---And also that it could be updated at any time to use the dynamic key? Or that doesn't follow?

--- End quote ---

IMHO, that's correct but not necessarily a must.

Nonetheless, that has also been accommodated.  ;)

hpw:

--- Quote from: rf-loop on December 27, 2023, 08:07:13 am ---
--- Quote from: PELL on December 27, 2023, 05:09:42 am ---Update:

@rf-loop I think this time we are getting the true result, and it also the same as Siglent marketing "under 70uV noise at full bandwidth" :-+

Also I noticed the CH3 noise is much smaller than others


--- End quote ---

CH3 noise is naturally more low than others because CH3 is set for 20MHz BW when others have full BW
When there is wide bandwidth random noise and we then reduce bandwidth... if we half BW noise drops 3dB but in practice not perfectly because there in oscilloscope is not only "ideal" flat white noise.... there is more things what affect here.

--- End quote ---

Why only Ch3 what made no sense IMHO, as IMHO CH3 & Ch4 may acting equal or not??

Hp

2N3055:

--- Quote from: Veteran68 on December 27, 2023, 12:36:50 am ---
--- Quote from: Martin72 on December 27, 2023, 12:17:17 am ---does anyone here really believe that Siglent can bring a completely new 12-bit scope in the 7" screen size class onto the market just 3 months after the global launch of the DHO800/900 series?

--- End quote ---

Well no doubt this has been in Siglent's pipeline for some time. They didn't just start working on it after Rigol released the DHO800/900 series. Rigol just beat them to market, and as you point out, Siglent seems more likely to release a more finished product rather than rush things just to get to market first. For all we know they've been working on it as long or longer than Rigol was.

That said, being 2nd to market brings some advantages -- you get to see what the market response was to the 1st, and to focus on filling any glaring gaps the competitor either didn't consider or thought were unimportant. So you can distinguish your release from theirs and take market share. This healthy competition creates an oscillation effect that motivates each to improve their designs, which is good for all of us. The entry/hobbyist market is much more constrained by margins than the high cost pro market, so their profit motivator is getting and maintaining volume. They can't afford to sit around.

I hope it doesn't happen, but at some point Siglent may decide the economics just don't justify the cutthroat hobbyist market and may forfeit the low end to Rigol, Hantek, FNIRSI, et al, while shifting more towards the pro or "A" brand market where they can demand higher prices. They already seem to have a considerably higher premium product line than Rgol does. I do hope they stay competitive in the hobbyist/maker space though, as I really like their products and again, I'd expect Rigol to feel more pressure from Siglent than they do the cheaper Chinese brands mentioned. Rigol might get lazy if all they have to "be better than" is Hantek or FNIRSI.

--- End quote ---


I find your analysis quite astute and I would like to add few points.

At this point it is clear that both of these 2 manufacturers already made their choices. They both are willing to provide equipment in what is called entry level segment. But Rigol decided to approach it as if it were a consumer products and target aggressively the hobby segment with less capable/less finished(refined?) products and lowest possible price. Siglent obviously, like you said, already behaves like A- manufacturer in many regards and tries to make serious instruments, even when they are entry level. Because of that they can command slightly higher price, because, they are basically not competing against cheapest Rigol offerings but A brands entry level gamut. Where Siglent is the one with better features and still much lower price.

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