Products > Test Equipment
Siglent New SDS800X HD First Bactch Unboxing And Tests And Teardown !
ebastler:
--- Quote from: GnomeZA on December 31, 2023, 01:53:10 pm ---
--- Quote from: tv84 on December 31, 2023, 11:23:09 am ---"Ah, but I can buy it online in China and send it over..." Sure but, bypassing the legal matters
--- End quote ---
What legal matters?
--- End quote ---
The buyer will not have legal problems, but will probably not get any warranty from Siglent. The seller is probably violating their contract with Siglent which allows them to only sell domestically.
tszaboo:
--- Quote from: Performa01 on December 31, 2023, 12:14:53 pm ---
--- Quote from: tszaboo on December 31, 2023, 08:46:30 am ---Certiprime MSOX2024A will get you twice the speed and logic probe for less.
--- End quote ---
So you’re throwing in a used 8 bit(!) entry level scope, limited to 200 MHz max. with short memory, heavily decimated measurements and short FFT, without 50 ohm inputs, with poor sensitivity (everything below 4 mV/div is just fake) and only 5 digits frequency counter, that lacks history mode and where even basic features like mask testing, segmented memory or basic decoders are (expensive) options? Seriously?
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It's been shown that the KS's 8 bit ADS, with the hi-res mode has about the same ENOB than these 12 bit scopes.
And maybe what you are writing is true, but at least that scope will be able to draw an eye diagram for a SPI bus, something that is on every 1 USD microcontroller. Or debug a mixed signal system.
--- Quote from: 2N3055 on December 31, 2023, 02:00:40 pm ---analysis options and capabilities.
So if more advanced scope
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Oh this again. I think we explained it already. Nobody cares, because we don't use the scopes that way, because we don't see the point.
Also, having 50 Ohm input on a 100MHz scope is really useful, you can like divide your almost DC signal in two.
Anyway, Happy new year everyone, and just accept that some people will have different opinions.
2N3055:
--- Quote from: tszaboo on December 31, 2023, 07:02:32 pm ---
--- Quote from: Performa01 on December 31, 2023, 12:14:53 pm ---
--- Quote from: tszaboo on December 31, 2023, 08:46:30 am ---Certiprime MSOX2024A will get you twice the speed and logic probe for less.
--- End quote ---
So you’re throwing in a used 8 bit(!) entry level scope, limited to 200 MHz max. with short memory, heavily decimated measurements and short FFT, without 50 ohm inputs, with poor sensitivity (everything below 4 mV/div is just fake) and only 5 digits frequency counter, that lacks history mode and where even basic features like mask testing, segmented memory or basic decoders are (expensive) options? Seriously?
--- End quote ---
It's been shown that the KS's 8 bit ADS, with the hi-res mode has about the same ENOB than these 12 bit scopes.
And maybe what you are writing is true, but at least that scope will be able to draw an eye diagram for a SPI bus, something that is on every 1 USD microcontroller. Or debug a mixed signal system.
--- Quote from: 2N3055 on December 31, 2023, 02:00:40 pm ---analysis options and capabilities.
So if more advanced scope
--- End quote ---
Oh this again. I think we explained it already. Nobody cares, because we don't use the scopes that way, because we don't see the point.
Also, having 50 Ohm input on a 100MHz scope is really useful, you can like divide your almost DC signal in two.
Anyway, Happy new year everyone, and just accept that some people will have different opinions.
--- End quote ---
Shown where? KS with Hi-res will have that ENOB until what frequency? Please show data and references.
What do you mean it can draw and Eye diagram on SPI bus ?? how ?
I know my 3000T can do mask testing of an eye on FlexRay and CAN by using special scripts. And those are basically using mask test with a trick. Useful though, better than nothing.
But first Infiniivision scope that has Eye diagrams is 6000 series..
As I also explained before, and again you. You not caring is not same as nobody cares.
Anyway, Happy new year everyone, and just accept that some people will have different opinions.
Performa01:
--- Quote from: voltsandjolts on December 31, 2023, 12:40:41 pm ---Picoscope 7 software example:
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Many professionals stick to version 6 just because they don’t have time to adapt their workflow and be beta testers for a completely new software, where up to recently there have not always been positive comments from the early adopters out there. Even the most recent datasheet for the Pico 5000D series refers to PicoScope 6 (only) whenever a specification depends on the software.
And in PicoScope 6, the max segments are limited to 10k, which isn’t a real problem most of the time, but still some order of magnitude less than even an SDS1000X-E and the measurement statistics is limited to 1000 and cannot be set to “Unlimited”.
--- Quote from: voltsandjolts on December 31, 2023, 12:40:41 pm ---..and I don't understand your reasoning for this statement:
--- Quote ---and the actual dynamic range is nowhere near what could be expected from a high-definition scope.
--- End quote ---
--- End quote ---
Yes, this statement was a bit harsh and reflected mostly the frustration about a “16 bit” mode that, despite its limitations with regard to sample rate, doesn’t even come near the 4262, which in turn actually reaches the theoretical maximum that can be expected from 16 bits.
In 12 bit mode we have to live with the fact that the already low sample rate of only 125 MSa/s (4 analog plus digital channels) is further cut in half in 12 bit mode. As a comparison, the 12 bit SDS2000X HD has 1 GSa/s in the very same situation. As a consequence, the Pico 5444D cannot be called a 200 MHz Realtime scope, it is rather <60 MHz in 8 bit mode and <30 MHz in 12 bit mode. Hardly comparable with something like the SDS2000X HD.
Noise is the ultimately limiting factor for the dynamic range. It is specified as 110 µV RMS for the “200 MHz” 5000D and 45 µV RMS for the 20 MHz 4000A. You see the difference?
Noise (with 10 Mpts record length, lower bandwidth limit = 100 Hz) is just 55 µV RMS for the 200 MHz Siglent SDS2204X HD. The latter would have only 28 µV RMS in a comparable situation to the Pico 4000A (2 mV/div and 20 MHz bandwidth limit).
tszaboo:
--- Quote from: 2N3055 on December 31, 2023, 07:23:53 pm ---Shown where? KS with Hi-res will have that ENOB until what frequency? Please show data and references.
What do you mean it can draw and Eye diagram on SPI bus ?? how ?
I know my 3000T can do mask testing of an eye on FlexRay and CAN by using special scripts. And those are basically using mask test with a trick. Useful though, better than nothing.
But first Infiniivision scope that has Eye diagrams is 6000 series..
As I also explained before, and again you. You not caring is not same as nobody cares.
Anyway, Happy new year everyone, and just accept that some people will have different opinions.
--- End quote ---
I'm not going to spend hours googling around for you, so you can pick some irrelevant characteristics like "this scope has 4 math channel therefore it's better". Even though the only reason to have 4 math channels is to post pictures online to brag about 4 math channels.
BTW you do eye diagrams by turning on persistence. Since we have been doing it since the 90s, but I guess if it's not in the scope it's impossible to do a measurement.
I'm not interested in continuing this conversation with you. As I said, my opinion is that the scope is too expensive for what it is, and I don't need to justify it to you or anyone else. And actually siglent has the means to fix that, since it is 50% more expensive than in other markets, but they are happy with the pricing.
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