Hi, We've got a brain spanking new low-cost signal oscilloscope. yes, lower cost and then the previous one, the 1104 Xe we've looked at. this is the 1104 X U Yes, not to be confused with the previous 1104 Xe and not to complement be confused with all the other models in the 1000 series. We're talking the 1000 X and X plus the 1000 Cfl, the 1000 Cml Plus, and the 1000 Dl Plus which are all currently listed on their website.

In the 1000 series, I wish they'd just like settle on one Anyway, Thank you very much Siglin for sending this one in. It's just been released and it is a hundred bucks cheaper than the 1104 Xe. It is still a four channel. It's well, it's a hundred megahertz.

What's the differences? Well, let's find out. this won't be a review video. It's more of a tear down video. But let's go through it.

So the differences are. This one is a hundred megahertz only. There is no 200 megahertz option, so I don't know if this can be hacked to a higher bandwidth. It may actually have a different front end which is, uh, part of what we want to do this teardown.

So the new Xu model here is 399.9 bucks as opposed to 499 yankee bucks for the 1104 X E model. And it's 100 megahertz only as opposed to a 200 megahertz option in this. So whether or not this one can be hacked up to 200 megahertz, we don't know. that's why we're doing this tear down.

Uh, we want to see if like the front ends are different, they may have. They're almost certainly I think saving cost in this one. I wouldn't surprise me if they've got a redesigned hundred megahertz only front end, so I wouldn't get your hopes up at this stage of uh yeah, hacking this one to any higher bandwidth or any extra uh features. Now the other difference is this is a dual one gig sample per second.

Uh, whereas this one I believe is only a single one gig sample per second. So if you share that across all four channels, then you're only going to get 250 meg samples on each channel on all four, so that's not great. whereas this one it actually says on the front quad 500 meg samples a second. So yeah, it looks like they've halved the bandwidth or half the maximum bandwidth and they've halved the sample rate and they've had the memory as well to get the bond cost down.

because um, you know, to save a hundred bucks a retail price on this, you're going to have to be looking at reducing the Bom cost by probably you know, 30 40 dollars, Something like that. They've got to save it. And if the Adc chip alone is 10 bucks you know each then well you can save. I'm just ball parking there, I'm just.

you know, I don't know where the actual cost the Adc is, but right there you know you might be able to save like 10 bucks off the bat by simply halving the number of Adcs in there. And this one only has a 128k Ff T. whereas this will do one meg point Fft. As you can see, there's no digital option on this thing is actually there, but it's not populated and yet it wouldn't be populated on the Pcb either.

But apart from that, they're near identical. This one does have the digital button, this one doesn't but there is the indent in there for the digital button, so they've used the same plastics as you'd expect. Also, this one doesn't do any bode plots and it doesn't do any wi-fi optional wi-fi as well. but it does have the same screen 800 by 480.

But apart from that, um, yeah, that's the 100 bucks difference. But hey, a hundred bucks down at this price point, that's quite a large difference. Um, so it's still fifty dollars more than the Uh Rye Gold retail price point at uh, 350 us dollars for their Uh four channel scope. Uh, the 1054 Zed.

but you know it's this is a more case. This cigarettes are generally a more capable scope. uh, than the Rigols. I believe that's still the case.

I haven't done a modern comparison, but but you know if you're saving every dollar then you know 50 bucks more for this fortune. If you just want four channels 100 megahertz then you know 50 bucks more might buy you. You know some other bit of test gear or something like that. They're absolutely identical down here, although, um, this one has a calibration sticker.

This one just says calibrated. Oh, nobody signed it doesn't give me the you know, the warm fuzzies. but as far as the ports go, you don't get the Usb on the back, which I had the wi-fi dongle on it. So that's why you don't get the wi-fi Um, but you still get the Ethernet lens, I believe It also doesn't have a web-based firmware update, which I believe the E-model does, so I haven't tried that, but that's in the comparison table anyway.

So there's your 4k money shot there. And no, I'm not going to turn it on before I take it apart. Let's take this damn thing apart and see what the differences is we will find. Like, as I said, reduced bomb cost, reduced componentry just to get that bomb cost down guaranteed.

Otherwise, what's the point? Oh, and the other thing is, uh, the front end is only one millivolt per division, as opposed to 500 microvolts per division on the other model. So that again, is a hint that we might see an entirely different, uh, cheaper front end on this thing. But hey, for a low cost 4 channel scope, you don't need your 500 micro volts per division. That's just like luxury.

And it's got the same flippy feet on it which feel okay and the big rubber baby buggy bumpers on the bottom. And let's avoid the warranty on this bad boy. and I do believe that's the exact same metal chassis if memory serves me correctly. And right off the bat there, you can see that it is a completely redesigned Pcb.

They don't even have the footprint in there. All right, let's see if we can pop the hood on this. any? Yep. Connections are nice, we can just whack that out and beautiful.

Get the power supply out. Oh, it's uh, I've got some silicon in there. that's nice attention to detail, but you're coming out there we go. And yet, right off the bat, they have changed this.

So here's the old one on the top. Yeah, it's uh, significantly changed. As you can see, there's a single uh, Adc down here as they told us. um, less memory.

Um, as they told us. and uh yeah, it's a distinct lack of or and all the other digital um, circuitry and everything else is just. it's just gonski. Um, yeah, that's pretty bare bones.

I'll tell you what, these cover plates are not easy to get off at all. You've got to get a knife in there and actually lift up each individual tab. And yep, as expected, a significantly simplified, redesigned, uh, front end. We've only got one relay like we had before.

Don't know why they put the uh screen in on that looks like screening tape. Not sure what the deal is there, but um, yeah. look at that. There you go.

That's magnetic shielding. Wow. Why do they need magnetic shielding on the top of the relay? I wonder? Hmm, that's interesting. I'm stretching here.

My mind's just instantly went towards, well. what's the only thing behind here above the relays here? Um, on the board is the switch in power supply. Maybe that was coupling in? Maybe they got a different design power supply? I don't know. I'm just, I'm totally stretching here.

Anyway, we've got a uh, so, um, 14 which we didn't uh, have before. So well, yep, there's your savings right there. I mean, you know, relays aren't cheap, right? and uh, obviously they've got, uh, some redesigned circuitry in here, so no doubt that's going to be cheaper for the lower bandwidth. They've only got the single Adc up here, and that's it as opposed to the two before.

and then, of course they've got less sample memory only. Uh, 14 meg points? Uh, total. and that would go down of course if you put on the multiple channels. almost certainly so that you know half the number.

So you save your cost there. You save your cost in your Adcs, You save your cost on the relay and other front end components and stuff like that you remove out. You know, another bomb cost on like the Usb connector and the other and the Usb stuff. and you know things like that.

Like all these little bomb items add up and all the little and all the support circuitry go along with that. Shave off, you know, Cents here. Cents here. A few bucks there, a few bucks there and before you know it, you know you've saved.

you know, 30 40 on your bomb cost. And that's why they can afford to sell this at 399 us retail instead of 499 us retail. And is this shield in material magnetic? Well, yeah, yep, is already. uh, electrically shielded.

So must be some sort of magnetic shielding. And is it conductive? Why? I'm really poking the probes in there? No, not really. So let's actually compare the front ends here. Now I've got three different uh, sigil and scopes.

Uh, this one is the Sds 1202 Xe. That's the 200 Megahertz two channel version released in about April 2017. and I've done a teardown video of that. And then we have the Sds 1104 Xe which is the 200 World 100 or optional 200 Megahertz 4 channel version that was released in about November, Uh.

2017. And here we have this new low-cost one, the 1104 Xu. So this is the original one and it was a totally different Uh format design. The board was totally different as you can see this one used like the way that just the mounting this one like mounted on the bottom whereas this one was like vertically in the case.

This was an entirely different Uh design when they went for the 1104 Xe. even though it's got Xe on it was an entirely different construction design inside. Very different, but they kept the front end nearly identical. Leave it in the comments if you spot something I don't but differences down here.

Um, they've both got like an unpopulated cap on the input here. Virtually identical. There are some differences in value. Oh yeah, that one is that different to like here.

But basically it's exactly the same. The unpopulated footprints are the same except for these. This large cap here is not present here. But as I said, this is the 100 megahertz model, not not the 200 megahertz option.

Uh, so yeah. there's very, very little difference at all down in the Uh. Two stage front end down here. Let's just call it like a two divider stage front end.

This one doesn't have a cap. This one has a cap. This one has zero ohm resistor. This one doesn't have a zero ohm resistor.

It has some sort of resistance value in there. The transistors they're all look. This one doesn't have a cap in here. so there's slight differences in the six months from this one to this one.

They did actually revise it, but you know it's the same transistor arrangement around here. Everything's hunky-dory but look at the difference over here. This is where they've reduced the cost. They have redesigned this front end.

It's only a single divider stage here. They've only got the one trimmer cap as opposed to the two uh, trimmer caps here. Uh, so we've got our resistor going in here. There's no optional footprint for the cap like we had over here.

It's like there's just far fewer. Look at this. far fewer divider resistors here. It's just like it.

It's much different. It looks like they're doing it up here because the Opa 48 72. That's actually a I believe it's that's a four-way max. So that's interesting.

Once again, they've got the 595 for of course I'd getting the extra digital uh, lines to control this thing. variable resistor here, which they didn't have on this design over here. so I don't know what that trimmer resistor would be doing. That's that's rather interesting.

You know, trim a caps you expect, of course, right to. Actually, you know to tweak your response some gray beaded new version? Well, probably not at silent prices, right? Uh, some some production worker sits there and goes, i don't even think you get the tongue angle for this. uh, price? Really? I think. yeah, Anyway, they they tweaked that.

So yeah, it's only a single stage jobby. So significant cost savings there. And uh, the 8330. That wouldn't be cheap would it? Let's go to the videotape.

now. You see, that's a pretty expensive sucker, even in a thousand volume here. right? You're talking. you know, three by like yeah, they'd get it cheaper than that, of course.

But You know, it's a couple of bucks, right? It's a one gig. Uh, low distortion differential. Um, amplifier, right? So that's the output driver for the Adc, right? So they've went. Oh bugger that we don't need the bandwidth anymore.

Um, because this is a hundred megahertz only. There's no 200 megahertz options, and we're not going to pay a couple of bucks. We're going for something cheaper, Thank you very much. But here's the interesting part.

The Opa-4872 This is not cheap. It's a multiplexer with amplifier interface. It is not cheap like it's like six bucks at 2500. so there must have been saving cost on some of the other parts in there to warrant using this unless they're getting it cheap somewhere Part: It's much more expensive than would have expected in a 100 megahertz front end.

Let's take a quick look at the data sheet here. Um, granted, it's got a 500 megahertz small signal bandwidth. Okay, 0.1 db gain flatness to 120 meg. that's you know you probably.

You know you've got to pay for that gain flatness. You don't want the gain to change over the frequency response. You want it to be fairly flat in an oscilloscope amplifier. you know, 0.1 db.

Good enough for Australia, And they've chosen like a pretty expensive mux there, so that's interesting. Wow, I didn't expect that. So unless there's something else on the bottom of this board, which, I doubt. Um, that's it, right? We've got our front end transistors here, and we've got a Mux and looks like we've got a divider here, do we? If anyone knows what that is, but it's obviously like a differential amplifier.

You can see the two resistors coming out here, so if you want to analyze that, um, have a go. But yeah, they've used a relatively expensive marks, but at the expense of all the additional, I mean you save on the real, You know you save on the whole second uh, stage here and stuff like that, so that's that's fascinating. But yeah, you're not going to get, you know, a couple hundred Meg's performance out of this. It's like, yeah, it's lucky if it does 100 me.

and if you look at the Adc in the new model, we've got a head 15 11 so let's see if that was the same, this would be the Pll. You can tell by all the uh, like you know, the inductories and caps and a few resistors surrounding that that's just got Pll written all over it which generates the clock. Which then there's your little differential pair going through there that drives your Adc here. As I said, they've only got a single Adc and yep, confirmed.

same Adc in the Xe model, the Had 1511.. and as was seen before, it's a one gig sample per second ad converter. it's got once again it can go into quad channel mode, but once again because we've only got one of these compared to two in the previous model, it will only do 250 meg samples per second. I guarantee when you power this thing up, that's all the sample rate.

You'll get two and a half samples right per cycle. is I? yeah? Okay, you're not going to alias, but it's You know it's not very good. Usually you'll want 10 times. Usually you know a good scope will have like 10 times.

but as I said, technically, it's fine. You're not going to alias the synax on X interpolation. it's going to interpolate it for the given response of the front end. Different response front ends uh will have different effects on the uh, you know, the type of interpolation you use and stuff like that.

and yeah, but anyway, 250 meg samples, it's disappointing. But hey, for the cost, you still get a four channel scope, so don't complain. And really, most of the time you're not going to be using this damn thing. at 100 meg for all four channels.

Anyway, If you, you know, looking at that sort of, uh, bandwidth, you know you're going to be looking. you're going to be spending more coin on a higher end scope. So yep, this is just a basically a stripped down um E series redesigned front end. As I said, uh yeah, they're probably using the same here.

Well, they might be using a less grunty Fpga under there. that's uh, stuck on with adhesive. I'm not going to thermal adhesive. I'm not going to try and get that off anyway.

We do have. Oh look at that. They've even got the pin headers on there for us. So um, yeah, look, I won't.

If anyone really wants me to get the boot code, I probably could. It's got half the amount of ram that the previous one's got and it really doesn't have much else. So there's the Lcd connector. Got some power supplies down here once again.

this is. this will not do 500 micro volts per division. That's what they were getting the uh, that's what they were using the two-stage one before. One stage would have been dedicated to the lower volts per division uh settings and the other one would have been used for higher.

Now they're just using like the single stage relay switch in here and the mux. So yeah, you know it's going to be less performance. I'm still curious to know about the magnetic shields on the relay because I don't recall those being in the previous model. Hmm.

really simplistic, but that's what I expected. Let's have a quick squeeze at the power supply. Well, there you go. That is, uh, significantly different.

I'll put up the other one up here and you can see, um, yeah, a very different uh power supply. Even though the power requirements would be the same once again, this would have been cost optimized, even though the old one would have been cost optimized, this one would be even more cost optimized. So um, yeah, but it looks neat and tiny, doesn't it? They've just gunked it all up absolutely everywhere. Is that a little on or something can't quite see and people don't know why? I can't see this? You can see this on your big screen.

I can't read this sort of stuff on my camcorder and that's too. uh, smaller actually for me to read from here. Anyway, from a design aspect, it's quite good. Look at all the isolation slots around the Uh through the Optos between the Diode bridge in there.

full wave bridge rectifier of course, input and so input filter in input, common mode choke, full wave bridge rectifier into the Uh high voltage cap and that's just driving the primary side switcher here. and there's our isolate. That isolation slot will go right under that transformer as well. and um, just yeah.

secondary side and then just a secondary side regulation. Not sure what voltages they need out of here, so you know 12 and five or something? Do they even need a negative rail? Not sure. One curious aspect of this. look.

What is this is this for? like a switch? Um, and what are these like little jumper links down? there? Is that like did they have a different design of this thing? Um, like in mind or something if they reused it from something else? I? I? don't know. that just does not make any sense. Anyway, that's a reasonable enough power supply, especially for the price. And it's really it seems like well laid out and designed.

But yeah, you can bet your bottom dollar they would have been saving cents anywhere they could. Actually, this is very interesting. You'll notice that on the secondary side here, this is just a diode. So you know.

here's the main primary size switcher here. So I go switch us through the transformer, Then we've just got a rectifier diode there, some caps and this is an Lm317. and well, is that it. I don't see any other control stuff on the secondary side.

We've just got an Lm317. Really? Yep, nothing on the bottom side. That's it. Sneaky little bugger Teal 431 down there.

The classic, uh, shunt, uh, you know, classic, uh, precision shunt reference. So yeah, apart from that, um, that's it. Is it? Okay, now let's actually measure the uh, front end noise of this thing, shall we? So I've got Channel One and Channel Two. I've got both the electrical shield in place on the back and also the magnetic screening on the back of the relay.

So what we've got here both uh, Dc coupled. I've got 50 Ohm Terminator. But in case you're wondering, no, the 50 Ohm termination doesn't make any practically any difference whatsoever. If it does, then it's a pretty poor shielded uh scope, so you can have a look.

You can see that in the peak to peak uh values there on Channel One. as I yes, because it'll have the yep, it'll have the input, Uh, the uh, Tribal Electric Problem? What did I call it? I've done a video on that anyway. I have to link it in, but that makes no difference whatsoever. So what I've got is, I've got the Uh P to peak and the Rms of Uh, Channel One and Channel Two.

But I've done a video on this. The Rms value is not the correct way to actually measure noise because it'll take into account the Dc offset in here. And yeah, as I said, I've done a whole separate video on that. It's very interesting, doesn't I think it's crack fifty thousand views.

but it's a fascinating watch, so I'll definitely link that one in here. Watch it. explains all about, uh, the traps in Rms, uh, noise measurement and standard uh deviation. But anyway, uh, peak-to-peak Uh, Channel one.

and we've got uh, 700 odd micro volts. Uh, Channel two is a little bit lower. there, nothing really in it. and what we do.

what we don't want to look at actually is the standard deviation of, uh, this Rms value. Here, we actually want the standard deviation function. So if I call up, uh, measure here, we can go. Let's get it on Channel two.

Biggest. Channel two has the worst Dc offset. there. It is standard deviation so we'll turn that on standard deviation on and bingo.

We now have our standard deviation measurement up here and there you go. It's giving around about 89 or something like that, so it was different to our the standard deviation of our Rms value here because that's a different thing than the regular standard deviation. So anyway, traffic, young players, there's our noise on uh, Channel One and we'll get that on Channel two as well. right? So there you go.

I've changed that to give us the peak to peak and standard deviation. Got all the statistics so you can get the standard deviation of the standard deviation. All your math nerds can I go berserk in the comments. uh, explaining the difference there.

But anyway. uh. Standard deviation of, uh, the noise. Effectively, it is the Rms noise.

It's basically the standard deviation function in this respect is giving you Ac Rms because normally Rms includes the Dc offset and you can see it's a very significant Uh Dc offset. I've measured it like, you know, 300, 400, uh, micro volts or something like that. It's very significant. You almost see it's not quite half a division there, but it's You know, it's quite significant.

You might be able to, you know, calibrate out the scope and the Dc offsets and stuff like that and that might drift with temperature and time and stuff like that and maybe other channels coming on. Is it going to see we're getting actually turn on Channel 3 and our noise actually goes up There You go. it's 100 and up. Yep.

So if you have a look at, say, Channel 2 standard deviation noise 90, turn on the Channel three and we're jumped up to 123.. So we're getting extra noise there. Turn on Channel four. It's not going to make a difference.

So actually enabling that, different, enabling that sample rate, you can see the sample rate actually change up there. So anyway, we can turn off Channel One. Even there we go. And does it even get lower? Oh 85.

Turn on that. Oh yeah, it goes up, goes up a smidge. There you go. But that's not unexpected.

I mean, these aren't the world's best front ends. So anyway, yeah, it's only 399 bucks. It's You know, it's a cheap front end, but of course, good enough for Australia. So anyway, uh, that's with all the shields, magnetic and electrical in place.

So now I'll actually, uh, take off that. Um, I'll take off the shields and see what difference it makes. And there's a noise without the electrical shield plate. So it's kind of important.

And by the way, I forgot to, uh, mention that they've reused the same plate because it's got all the holes in there. So yeah, they, um, just reused it even though we've only got uh, the two trimmers, one cap, and one resistor. Still got the six holes. But you know.

So there you go. Huge amount. but it's actually electrically. Um, the case is not grounded at the moment.

If I move that back there we go. So without the shield, there you go. Um, because I've got, you can see the case here. It's not touching like that.

There you go. Boom. So that's all right. Oh, there we go.

That's a bit of a shocker, isn't it? Um, there you go. This is with no electrical shield and no magnetic shield on Channel one. So no electrical shield on Channel one and Channel two. Um, and this is with the case actually closed with so with the switching power supply near it.

So I'm going to, uh, replace the magnetic shield now. So let's you know, there it is. But what we actually don't want to look at. Look the standard deviation.

I.e the Ac Rms noise. There's really nothing in it. It's basically the same as before. So what we really care about now is that, uh, peak to peak noise and we can actually trigger off that.

There you go. That's the switch in, that's the switching converter right there. Hmm, but that's what you'd expect. We've got no electrical shield and no magnetic shield.

So anyway, so we're looking. That's what we want to see there. So you know, typically 1.6 peak to peak and 1.2 on uh, the second channel. All right.

So let's move the trigger point up there. Let's free run it. This is with the electrical shield in place, but no magnetic shield on Channel one. But Channel two has the magnetic shield and you can see, uh, yeah, mean peak to peak? 900? basically.

Um, well, it's basically the same on both, so it really, there doesn't seem to be a differentiation there between, uh, having the magnetic shield or not having it. It's the electrical shield that seems to be doing the business. So why, why do they have the magnetic shield there? That's interesting. Maybe there's some other external effects, but geez, if you've got something like that near your scope, then you're probably going to come a gutser anyway.

So yeah, that's interesting. Okay, I'll work it back on. but yeah, both are about 900 feet to peak. mean and magnetic and electrical shields back in place.

Ah my. like oh no, no, it's dropped okay slightly. But I get like, oh, there's nothing in it really. I'm not seeing it.

Um, I don't know. Anyway, leave it in the comments down below if you spotted something I've missed or you've got some other, uh, reason why they'd have the magnetic shields on the relays. Um, yeah, um, I mean, it does seem like an afterthought, just you know, sticking them on the top because otherwise you'd buy like a magnetically shielded relay and you can buy them. They've got little new metal shields in them, so yeah, I don't know.

it's cheaper. Maybe price matters. Yeah, not exactly the world's best stuff. front end and sampling system, but you know, Look, it's a 399 dollar four channel scope.

What more do you want? I mean, you know, Seriously. And there you have it. Like I won't really go through all the extra um, like because the it's the same as the Xe, except it doesn't have the uh, digital, uh, optional logic analyzer. I don't believe you'd be able to hack this to uh, 200 megahertz.

Maybe somebody might be able to increase the bandwidth. You only got the 180c in there anyway, which has to share all four channels and you've got half the amount of memory and stuff like that. But hey, you know, for 399 bucks, you're saving a hundred bucks over the Uh Xe version. So there's definitely a space for this, uh, in the market it is 50 bucks more nominal.

Once again, these are like just recommended prices. street prices. Your mileage may vary, and I do believe the signaling is a more versatile scope than the Uh Rygole, but I'd have to do like a modern shootout of you know, everything. Um, basically.

So yeah. Anyway, this is not a review video. it's a tear down video. Leave us your thoughts down below.

But it's interesting that Siglin came out with this, uh, lower priced uh version. Obviously they wanted to compete because Rygal's been flogging that 1054z for, uh, I don't know, half a decade now, haven't they? When did I originally do my recommended video? People still watch that and go. I bought the Rye gold because you recommended. It's like there's lots of it.

was the only choice back then. Really, it was the obvious choice. And now, um, yeah. there's plenty of competitors and this one's uh, 50 bucks more.

And whether it's worth more, leave your opinion down in the comments below. And as always, if you liked the video, please give it a big thumbs up. Check out my alternative platform is over here. You know what to do: Subscribe? Yeah.

all that sort of Youtuber stuff. Rate Comment: What ever happened to right? Like you know, I used to be able to rate videos like now. it's just like thumbs up or thumbs down. You know you still like.

Ah, Anyway, catch you next time you.