Products > Test Equipment
Is the SDS2000X HD worth the upgrade from the SDS2000X Plus or Rigol DHO1000?
antian:
Hi, I'm looking to get a new upgraded scope for my work that only works with analog signals and ideally I need a minimum of 200 MHz BW with 500MS/s on all 4 channels. I have a budget of ~$2000 USD but if I wait a bit I can probably go up to ~3000 in a month or two or I can ask for more funding from another source. I've traditionally used Siglent or Tektronix scopes and used the high-definition acquisition modes for effective 12-bit but now a hardware 12-bit sounds very attractive and the price of the Rigol DH1000 hacked at $599 (currently on sale) sounds almost too good to not try. The SDS2104X Plus based for $1399 can be hacked it seems to the 350 MHz and that can operate at 10 bits, although the BW drops too 100 MHz which isn't ideal but I might be okay with 350 MHz with traditional high resolution mode. Does anyone have any recommendations on if the upgrade to the SDS2000X HD would be worth it from either scopes? And if between the two, is the SDS2000X plus worth basically two Rigol DHC1000? I am a little hesitant on the Rigol scopes because I have seen some people reporting more issues and more noise.
tautech:
Welcome to the forum.
FYI
SDS2000X Plus and SDS2000X HD are both 500 MHz designs and each run two 2 GSa/s ADC's allowing for 350 MHz operation on all 4 channels while retaining 1 GSa/s sampling on each channel.
However to operate with all 4 channels active BW is auto-reduced to 350 MHz to meet Nyquist whereas when only 2 channels are used/active and one assigned to each 2 GSa/s ADC, their full 500 MHz BW is maintained.
The HD model is a professional product with very low fan noise for this class of instrument.
antian:
Hi thank you, is the fan that big of an issue? I'm guessing that it could be swapped out for something if alot of people complain about that. I think I'm wondering if the 12 bit will be worth the cost upgrade since I believe if you use the SDS2000X plus in the 10 bit mode it reduces the BW to ~ 100MHz according to the data sheet so the SDS2000 plus even if it could be hacked will not be able to operate at 200 MHz with the 10 bits, unless I am mistaken. It seems the SDS2000X HD is the lowest entry from siglent for 12bit with at least 200 MHz BW, until the SDS1000X HD is released.
tautech:
--- Quote from: antian on December 04, 2023, 07:15:28 am ---Hi thank you, is the fan that big of an issue? I'm guessing that it could be swapped out for something if alot of people complain about that.
--- End quote ---
The 2kX HD has a properly controlled fan whereas 2kX Plus does not.
They both use 80mm fans.
--- Quote ---I think I'm wondering if the 12 bit will be worth the cost upgrade since I believe if you use the SDS2000X plus in the 10 bit mode it reduces the BW to ~ 100MHz according to the data sheet so the SDS2000 plus even if it could be hacked will not be able to operate at 200 MHz with the 10 bits, unless I am mistaken.
--- End quote ---
Quite correct, all SDS2000X Plus models are 100 MHz BW limited when 10 bit mode is engaged.
--- Quote ---It seems the SDS2000X HD is the lowest entry from siglent for 12bit with at least 200 MHz BW, until the SDS1000X HD is released.
--- End quote ---
At this time, correct.
SDS1000X HD has a single 12 bit 2 GSa/s ADC, shared by all channels as is the sample memory whereas units that run dual ADC's also have dual memory packages so memory is just halved and not quartered like scopes with a single ADC/ASIC.
My 200 MHz prerelease unit limits BW to 100 MHz with all channels active.
SDS2000X HD models have recently dropped in price and are currently offered with a promotional options bundle for a nice additional saving.
If you can stretch to the 2kX HD and add the option bundle I'm quite sure you wouldn't regret it.
Martin72:
--- Quote ---They both use 80mm fans.
--- End quote ---
No, 92mm...Both. ;)
And yes, the HD is quiet, nearly dead. :D
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