Products > Test Equipment

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

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2N3055:

--- Quote from: hpw on December 27, 2023, 10:59:56 am ---
--- 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

--- End quote ---

He enabled 20MHz BW limit on CH3. What is your question? Please explain a bit.

hpw:
ok,

4 channels always active so BW limits for each channel even all 4 active.

While on some LeCroy WM, selecting 20Gs only 2 channels are active.

2N3055:

--- Quote from: hpw on December 27, 2023, 12:44:48 pm ---ok,

4 channels always active so BW limits for each channel even all 4 active.

While on some LeCroy WM, selecting 20Gs only 2 channels are active.

--- End quote ---

20MHz is standard BW limit option on channels that all scopes have.

SDS800X HD samples
One channel mode: 2 GSa/s,
Two channel mode: 1 GSa/s,
Four channel mode: 500 MSa/s

Even 200MHz version is always 200MHz regardless of number of channels being used.

Randy222:
I see this is a Siglent thread, along with the siglent vs rigol chatter.

It's not a compare thread.

Martin72:
 :-//

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