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Siglent SDS1104X-E vs. Rigol DS1054Z Advice?
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rf-loop:

--- Quote from: Fungus on August 24, 2018, 06:11:09 am --- and a USB analyzer costs under $10 on eBay (or more than $10 if you want an even better one) - much cheaper than the hundreds of $$ a logic upgrade to an oscilloscope costs.

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USB "analyzer" (what analyzer) is not oscilloscope at all. How you analyze signal waveform with these kind of USB "analyzers". They show only decode result or just binary state from signal but you do not see this signal itself at all. Oh you can use external scope for this but where is then time synchronization between scope screen signal and computer screen decode result or 1-0 states.


MSO is just for look digital AND analog signal together with tight time synchronization if use digital channels for decode some serial communication or some other bus. If do not use digital inputs for decode then use analog channels for decode and you have decode and decoded signals analog waveform between signals with tight time synchronization on the screen.  Cheap USB "box" can not do this at all. 
If only need decode, both scopes have free serial decoder and in this Siglent have bit more than this Rigol.
But then, if need MSO functions what means integrated scope and LA then these cheap USB decoders are not these at all)

So if example later user find that he need  MSO with 4 analog channels and 16 digital channels what can use all fully together simultaneously he do not need buy new scope if he have SDS1104X-E.

But if he have DS1054Z or 1104Z then this is just impossible. Only way is buy whole new MSO scope and there come Rigol MSO1104Z. But again, it is mostly same as DS1000Z models with all its goods and bads.

Example fact that it can not do simultaneously 16 digital + 4 analog. You need drop off more or less analog channels if you use digital channels. If want 16 digital then only 2 analog channels can use. Siglent is different. Fun - is it.

This is fun to say that Siglent need buy expensive extra options...  if user need options yes, but then also compare to other brands need do fair way.  Even if you buy R. MSO1104Z (in europe consumer price typically 950 eur)  do not get even nearly same as with SDS1104X-E + MSO-LA option what european consumer price is around 965 euro).

Some ask why Siglent MSO-LA option cost hundreds.
But when we go to Rigol, why not ask why MSO model price is hundreds more than same without MSO. Fun - is it.

Oh well, and then some may tell that 50MHz Rigol can hack to 100MHz model. Well, at this time yes.
But, at same time Siglent 100MHz model can hack afaik 200MHz model. So

And prices. 40% cheaper?? Yes it depends...

Consumer prices, well known very reputable and trusted "spitzenklasse" Batronix:
DS1054Z. 403 eur 
Siglent SDS1104X-E.  510 eur.
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But then. All what is important is what meets user needs!

And here, imho, even DS1054Z is more than OP need if need is all what we can see here.

For audioit is true that many sound cards and PC software can do lot of better work than 8 bit ADC oscilloscope with what ever memory length. Even normal "crap" sound card what every computer have (more or less crap) can do better, and if want or need better or lot of better  then need - money or lot of more money.
I recommend first test with just this sound card what is in home already and some free software and if never have seen what these can do without any investment - it may be astonishing.


nctnico:

--- Quote from: tautech on August 24, 2018, 08:16:43 am ---
--- Quote from: JS on August 24, 2018, 05:48:22 am ---I'm after a AWG and a LAB PSU now, and of course considering Siglent, if you know a distributor with reasonable international shipments let me know!
JS

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Several but it's very bad form to sell into another authorized distributors patch, period.

Good luck should you need warranty or specialized support from the Asian mum and dad backstreet shops, just good luck !

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In my experience a local distributor can be unhelpful as well. It is a bit of a hit & miss and you don't know until it is too late. Usually I use google with the company name and the world 'problem' to see if a shop is any good or not before buying. Last year I bought something from Italy instead of the local NL distributor because the NL distributor seemes to have very bad customer services (sell broken / DOA items and then let customers wait weeks or months for repairs).
KungFuJosh:

--- Quote from: Fungus on August 24, 2018, 06:11:09 am ---
--- Quote from: KungFuJosh on August 24, 2018, 02:05:21 am ---In all honesty, being the tech/computer type that I am, it bothers me to pay for an old computer.

--- End quote ---

Test gear isn't really comparable to PCs in that regard.

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In most cases I would agree. However, IMO most DSOs are really limited/mediocre computers with BNC terminals on them. Ooooh, this one has an 800x480 screen on it, wow! It's kind of pathetic really.


--- Quote from: Fungus on August 24, 2018, 06:11:09 am ---It's 40% more expensive, maybe 40% better. If you really can't think of something else for $140 that would ACTUALLY make your life better (ie. today), then, whatever. It's your money.

(Bench power supply, Signal generator, Hakko soldering station, Brymen multimeter...)

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I have everything I need otherwise. I have a Tenma 72-505 audio generator that does any signal generating I really need. I have an Amprobe 37XR-A meter that covers my uses (obviously among other DMMs lol). I'm not a big fan of Hakko though, I think they're overpriced. I have an Aoyue 2703A+ that's excellent for my needs. Bench supply and isolation transformers are also covered. I have no need for another meter, but I would still buy a 121GW for the hell of it/sheer curiosity...I mean to support the blog. ;)

I get that perspective, but I don't think of it like "what else can I spend $140 on now." I think of it more along the "buy cheap, buy twice" proverb. Yes, the Rigol is $140 cheaper right now, and covers my needs right now, but will it end up costing me more next year when I realize I needed more out of the scope? Of course, I could be kidding myself to get a shinier toy. I am aware of that possibility.  :-DD

Thanks,
Josh
Fungus:

--- Quote from: rf-loop on August 24, 2018, 08:44:20 am ---USB "analyzer" (what analyzer) is not oscilloscope at all. How you analyze signal waveform with these kind of USB "analyzers".

--- End quote ---

You use your oscolloscope!


--- Quote from: rf-loop on August 24, 2018, 08:44:20 am ---MSO is just for look digital AND analog signal together with tight time synchronization

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All true, but:
a) It's really just a convenience, not a necessity.
b) It's a really expensive convenience ($300+ for the add-on - nearly as much as a Rigol!)
c) A USB logic analyzer is much better for recording long data sequences and analyzing them than a tiny-screen knobs-and dials device.
Fungus:

--- Quote from: KungFuJosh on August 24, 2018, 10:17:00 am ---I get that perspective, but I don't think of it like "what else can I spend $140 on now." I think of it more along the "buy cheap, buy twice" proverb. Yes, the Rigol is $140 cheaper right now, and covers my needs right now, but will it end up costing me more next year when I realize I needed more out of the scope? Of course, I could be kidding myself to get a shinier toy. I am aware of that possibility.  :-DD

--- End quote ---

As a car analogy: It's more like ticking the "leather" option box on a Ford Fiesta. It makes the car a nicer, yes, but ... your daily commute and weekly shop will be about the same in real terms.

That said: If you like leather seats and have the money then go ahead and tick it. The next step up (eg. Ford Focus) is a big step so you might as well get some options for your Fiesta.

Just realize you're not upgrading to a huge SUV (or Mercedes Benz, depending on taste) when you tick the "Siglent" box.  :popcorn:
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