Hi, it's Oscilloscope review time. We're going to take a look at the Rygold Dho 800 series scope because well, I have a history of doing these way back in my very first video number one, I reviewed the DS 1052e oscilloscope and that was the Ducks Guts groundbreaking oscilloscope back released in 2008 so that became like the industry standard entry level scope at that 400 US dollar price point and that sort of became once uh, Scopes were available at that price point and in pretty decent like scope. Sure it's a bit primitive by today's standards whether it's like a screen resolution and it's memory depth and it's uh, update rate and stuff like that, but the fact is, you got a fully functional scope for like under 400 bucks in this form factor because before that it was the Tektronics TDS 220 and this changed the game. This was uh, basically the industry's first real-time digital storage oscilloscope and it had this nice small more form factor that we're used to and this Ruled The Roost until Royal came along and proved that you can get a 400 price point in this sort of form factor.

Because Rygold actually had a scope before this, it was the Ds-5000 and it was, but it was big and long. It's same user interface as this but it was much bigger and deeper. Wasn't the small form factor that you used to and a couple of competitors came along after this and sort of, but this was still the go-to entry level scope until 2015 when Rygold changed the game again for the same price point. Now you didn't get two channels, so you got four channels and bigger screen.

faster updating, all sorts of, you know, fancy measurement capability and like a faster waveform updating and everything. This was the Ducks guts scope um, and dominated for many years. but then there were competitors that started to come along like Signal for example. and up until now, possibly uh, the sigilant have probably arguably been the banker buck leader in that uh, you know, four or five hundred dollar price point.

Sigler's a bit more expensive, but you've got a lot more bang per Buck. But now not only for 400 US Dollars This one actually starts at 299 US dollars for the two Channel version, arguably 70 megahertz. uh job. But I wouldn't recommend you buy a two channel oscilloscope these days.

Get the four channel, the four channel is 399 US Dollars This seems to be a bit of a price variation between Rygold uh, America and Rigo International prices. Not sure what's going on there anyway. sorry I won't put uh country prices for all specific, there's just too many countries out there. the value for money.

the bank per bark argument might change for your specific country and availability and everything else. So I'm gonna work in US dollars. So what's changed with the new Dho 800 series? Well, you've seen my previous videos about nine months ago or so on the Dho Uh, which was called HDL at the time. they've actually renamed the series to Dho I don't know legal reasons probably the Dho 1000 series and the Dho 4000 series and these contain Rygon's new Asic front ends and acquisition uh Asic chips in them and I said at the time that they should release a smaller version.

That's what they've done. a cheaper version and they've got it down to like technically 299 US dollars for the two Channel version And you can see the massive difference in size and it's slim form factor. So not only does this contain pretty much all of the features of this bigger scope, it still retains the 12-bit ADC And that's the new killer change that is basically Rygold's a set. Uh, the low bar for the market for that 400 price point or even less.

Um, you now expect a scope to have 12 bit a proper 12-bit None of that. uh, E-res stuff. This is a true 12 bit ADC front end in this: if you've seen my tear down video linked down below, um, you'll see that it actually uses the same front end as both of these. It's actually capable of really high bandwidth, uses the same Asic chip and you get 1024 by 600 resolution screen greater resolution seven inch.

but its capacitive touch screen now. So not only do you get 12 bit ADC but you get a touch screen capacity of high resolution or higher resolution screen in now. a really compact killer form factor. Look at this and it's got a Visa Mount as well.

So these amount of standard I said. When the Tektronics released their 2 Series uh scope which was fantastic, it was the first to have the Visa Mount I said everyone else will follow. Sure enough, here it is Visa Mount and it only weighs 1.8 kilos is Tiny So you really, uh, appreciate how much space was actually wasted on the front panel of this larger scope. This has better, same or better capability in a much smaller form factor.

It's so cute. And the other Innovation as well is that it's USBC powered. so you could actually power this from a just a portable battery bank if you wanted to. And there's an earthing point on the back.

Uh, if you want a Mains reference your scope. So yes, it's basically made the 1054z obsolete. although you can still buy it. Um, and you can still buy the 1052e I Don't know why.

um, they're not discontinuing it. but I Why this is 12 bit. this is more capability. It's touch screen.

It's It's tiny. It's cute. It's USBC powered. It's got a Visa Mount what? So the Dho 804 model which is the minimum I recommend with the four channels for the 399 US Dollars Uh, that's 70 megahertz bandwidth.

It's only available in the the 814 which I've got. Here is the 100 megahertz bandwidth. Not much difference between seven and a hundred. You might as well save yourself a few bucks and there's a hundred dollar difference if you want, uh, the full 100 megahertz version.

But get the 70 megahertz version. And yeah, it's hackable now. even though I don't have it. Uh, there's also the Dho 900 series available.

It's exactly the same as this, except it comes in Black I Prefer the beige personally. I don't understand the black thing. why? Anyway, yeah, Beige, lovely. for the Dho 900.

Uh, it's basically the same as this, except it starts at 100 megahertz version. It has an option for a 250 megahertz version and it has a logic analyzer as well. Uh, that comes standard with it. and the 900 series is only available in four channels.

no two channel Joby available and that starts at 599 US dollars for that one. and uh, an extra hundred dollars if you want the arbitrary waveform generator. But uh, if you want the logic analyzer, you've got to buy the probe separately. but people can.

It's a standard 0.1 inch header. People are making their own probes, so no worries. Shoe box. It's like a wrapped shoe box.

Anyway, look at that. So I've got the manual. Yeah, that's good. No product warranty card, just tucked away under these and easily missed that.

Um, that's that's nice. Um, and this thing, oh my. God it's tiny. Oh, it's tiny.

I'll show you what's else is in the Box Anyway, Oh, look, got the proper Aussie plug. Beauty No, that's an A so that's a comms. We've got a plug pack now. somebody on the Forum No, this is a different one.

This is a Light On brand. Wow. Okay, so that's our USBC Anyway, somebody on the EV blog Forum they got bundled like this. really crappy AC adapter, 12 volts, 4 amps.

but no, this is this is a proper like. light On are a reputable Ah brand. a little bit of a safety um ratings on that and we've got four sets of probes so that's it. It's nice packaging so we get a warranty card.

There's no manual, it's so tiny. Look at it compared to the um, the 1000 which is already. oh well. it's a decent sized scope.

the 1000. Oh my goodness. I Haven't seen anything that cute since the new Tektronics. Uh one.

Oh my goodness. One of the most remarkable things about Uh this new scope is the form factor. It's incredibly tiny for a four Channel scope like this. It is just brilliant.

If you compare it with, um, basically any other Um scope on the market is a fantastic form factor. I was really I've done an unboxing video of this on my Uh exclusively on my website and I was just blown away by it. Like how small the package is and how small the physically the scope is. even though it does have that still that rigol look with all sorts of mixed uh fonts on here and you know the like the industrial design of this thing is.

It's not the best scope out there, but they've done a really good job trying to get uh, the form factor of this thing right and well, some people aren't going to like it, but minimized bench space is a benefit in my opinion. Anyway, it does have the Visa Mount of course 100 millimeter space in Visa Mount I've done second Channel videos on the fan the fan is I Can't really get good measurements and audio on it, but the fan is a little bit whiny and distracting, but it is a 45 millimeter fan, but you could possibly retrofit a larger a hundred millimeter fan on the silent 100 millimeter fan on the back. Anyway, we've got our auxiliary out which is a trigger out and we've got HDMI as standard on this thing and it's output because it uses the Android operating system. Scales are perfectly to the screen that you're actually using, so you're up to a full HD resolution.

So you plug in a full HD screen and it looks absolutely fantastic. You don't get any increased waveform data on that, but it's the way it scales. It doesn't look like it's being scaled up from a smaller screen. It does does actually do proper scaling in the operating system.

But not only that, but I Discovered that you can also do the touchy feelies as well if you actually connect. this is a touch screen monitor uh tablet thing. It's got a HDMI port over here and uh yeah well it's got a sorry a USBC and you can connect that to the USB input of the scope over here and it works as a touch screen no worries whatsoever. so that's really pretty cool.

And also you can I try it. You can put a hub on here as well. It's a shame that it only has a single output, but we we are talking about a Bare Bones minimum price scope here. it works with the Hub and I've got my uh Wireless Logitech thing and we can use it as and we can use a moose as well.

With this, you've got USB built in and uh Lan capability LXI as well. We'll give that a go, but it works well and uh, of course one of the big things is it is now USB C power. Oh now you're either gonna love that or you hate that. I've done a tear down video.

yes this is soldered directly onto the board. It would have been nice if they have some sort of like clamp ability here that could you know you could attach the cable in but does have a Kensington lock here so maybe you could add like a third party one or something like then that actually. uh stopped any stress on the cable because with the VISA Mount if you're moving this around on the monitor arm, the last thing you want to do is accidentally move it and stretch and put stress on the USBC cable. But anyway, people are either going to love that or hate it.

but it is USBC powered and it comes with this quality light on Blend brand uh plug pack and it's uh, the Scopes power consumption is over 35 watts 36 Watts somewhere around there. Regardless of what you're doing with the scope there is, you know, no other lower power option unfortunately. so it is a bit of a power hog. but you could in Theory actually power this thing from an external battery pack and you could design your own Mount to actually mount on here.

Somebody has already beaten this to it though. Somebody on the EV blog Forum posted this beautifully designed and integrated battery pack with this thing. Ah, absolutely phenomenal. The community's awesome and I really am a fan of the feet on this thing.

They pop out nicely and pop back in and the angle on this is very you know is pretty much ideal for uh, bench use and it doesn't uh fall over when you press the buttons. Nice! Unfortunately, one of the downsides is that it takes about 46 47 seconds to boot up this thing so that's a bit agonizingally long in my opinion. Anyway, one of the interesting things is as you can see in the tear down video I've done on this thing is that it actually has the entire operating system built onto a Micro SD card on the motherboard so you can simply open the back and you can fiddle around to your heart's content with the operating system on this thing. And yes, people have hacked it.

I Haven't tried it myself, but apparently it's already been hacked up to the D8 Ho900 model and it's got a 1024 by 600 resolution capacitive touch screen. And yes, we can do the gesture controls that we can move things around. and yes, it supports uh, pinch and zoom and all sorts of funky uh touch screen stuff. You can touch and turn the touchscreen off if you're not a fan of that.

but a lot of the stuff is done through the touch screen. But like most touchscreen, Scopes I Do find myself using the touchscreen for a lot of stuff, but of course you still use the dedicated Uh controls for your horizontal vertical and your run stops and your whatnotes in your trigger to go straight into the trigger menu and things like that. but you know it's easier just to touch up there as well as it is to you know, touch the trigger button for example. But anyway, of course.

uh, given the small form factor, we can't have individual controls for the four vertical channels, so they're in the vertical. Arrangement Like that, we've got the horizontal here. It uses the uh new style Rigol navigation keys for searching uh, waveforms and a small stream. A section here: I Do find that you can barely see the trigger slope indicator there though, so it's a bit of a downside.

It's it's not very good. it's just washed out in my lab lights here, but the controls are color coded with the inputs here are as close as you know they can get them and uh yes, all the buttons are pushable so we can get the Vernia we can get uh the zero position here and we can get horizontal Vernier and we can get horizontal uh position? uh zero so you know everything there level will set to a 50 on trigger Etc It's got all the mod cons come standard with the single wire USB It would have been nice to get dual as we might see later and of course on this sort of price point scope, you don't expect uh, times 10 probe detection or any sort of uh Advanced probe so you just got your basic one Mega Input impedance no 50 ohm uh stuff. but you can just yeah, it just just buy yourself an inline 50. ohm Terminator No worries.

Now there is one little thing that's a bit disconcerting with this. uh, it. There is sort of like a not a Bernie smell, but it's a warm smell coming from this thing but you know it doesn't get that hot. In fact, I can show you the temperature if I go into the self-check menu down here.

We can actually do board tests there and the uh, chipped CPU chip temperatures currently running at 57 degrees. so it's not hugely hot, but you know it's It's just enough to have like a smell to it. Now as you can see, it does have 1.25 gig samples uh per second maximum and 25 Meg points uh, memory maximum. but of course that's only for a single Channel If you turn on the other channels here, it halves and then it goes down to 312 for the three.

and you don't pay any extra penalty for the four there. but it's got 1. Very interesting quote and it took me a while to figure out what the heck was going on here. But watch this.

I've got 1.25 gig samples per second, 25 Meg points I've got channel one like this, right? But if I set the trigger to a to the not to a channel that is not enabled boom, it's halved to 625 Meg samples per second and its memories dropped to 10 Meg points and that Tech and that 10 Meg points is now the maximum that you can actually do what the heck's going on here. And once again, 1.25 gig 25 make points, but it'll do the same thing if I turn on the frequency counter like this. So we now have a frequency counter on the screen. but watch this if I set the frequency counter to a different Channel Once again, boom.

It halves the sample rate and the maximum memory. What the heck's going on here I Don't think this is a bug I Think this seems to be like a an architecture limitation of presumably like the capture Fpga that they're that they're doing this on I don't know and that's just what it seems like to me. so it's a rather interesting Quirk and I'm not sure why it doesn't anyway if we're going to analyze here, which is a bit of a wasted button. but anyway.

DVM Counter: we've got record mode, show you that later and we've got a pass fail mode and of course, uh, with the new Rygol architecture, which is common across their four thousand their one thousand now the 900 and 800 series. Scopes You've got the Rygon menu here and that just pops up everything. So yeah, we don't really need that analyze button. Could have used that for uh, something else, but you know all the stuff is in here.

It's really like serial decode math. uh Windows because you can actually dock Windows as we might see and we can do histograms. we can do X XY mode and storage and all sorts of stuff. And as far as measurement capability goes, we've got the full complement of Staff.

It's You know, it's really quite something. They're the verticals. Uh, these are all the horizontal, uh, stuff that we can do. Can't possibly go through and test them all.

but we've got you know, delay in phase and uh, counter capabilities and then on top of each one of those, of course you can actually turn on stats. So if I go in here I can actually set and turn on statistics there. and Boom! We get the full statistics capability over here and we can reset that at any time and you can get that for any one of the functions. So it's really fully fully kitted out with measurement capability.

It's very nice and as with all modern Scopes there's like self-calibration capability I've tried that. It takes about uh, 10 minutes and it's got. You know you can set whether or not you want the screen to beep and what your Ox out does pass, fail, trigger out and you know whether or not we expand, whether or not you want the last settings when you power up. you know, So and uh, the quick button over here has lots of capability as well.

And as far as the triggering system goes, we've got all the usual culprits here. We've got noise reject and all the different Uh types here. that where we've got pulse duration set up, hold nth Edge Uh, You know we can of course trigger off our serial uh protocols, delay patterns. You know all sorts of stuff, so it's it's fully featured.

Eh, So that's more trigger capability than you actually got on the Uh 1054z which didn't have some of these things like Nth Edge and the vertical uh menu system. You get the nice little uh flow diagram here like the front end uh, architecture like this so you know it's very nice it show but some people might find this a little bit you know, confusing and of course you can do you find delay off and on and uh stuff and you can actually switch the waveform off and on uh from here as well. but you can do all that with the front panel and of course you can change the units uh what's amps if you've got uh probes hooked up to it or whatever. So um yeah, you've got your regular AC DC and uh, ground uh, coupling and of course you can adjust the bias voltage as well so we can set up to eight volts bias limit there so that's very nice on the front end.

and of course the bandwidth limit. Just your traditional uh 20 meg for like a noise measurements and whatnot and you can adjust your skus and interestingly you can actually go like to different menus. it can take you to the trigger menu so I'm not sure like why they're kind of doing I guess you know because like it's the flow of the oscilloscope thing. But anyway, editor probe because it's going off into this direction outside here or your regular uh probe stuff is there.

Um, it looks like you can't do a user though. So yeah, they've only got the fix. but it has a lot of capability there. So basically everything in this flows down from the 4000 series downwards.

you basically get all the same capability. You even get the ultra Acquire mode which has the million waveform updates uh per second in quote marks um in Ultra acquire mode. but it's a pretty fast and responsive scope for a low end scope. and it's it's.

got pretty much all of the features that are flowed down right from the 4000 series. it's it's really very nice. If you've got to remember, this is actually two. This starts at 299 for the two channel Joby and if we compare this to the original uh 1054 Zed like this: I mean look at, look at that.

I mean it's just like there's no comparison really. This 1054 Zed which was you know the Benchmark for so long just like feels like a dinosaur now I mean I like this is Oh I Hate to say it, but this is the future like and you can mount on a Visa arm, put it anywhere, and mount it off your bench and it weighs like 1.8 kilos. It's just. it's so cute and you might think that the screen is actually uh, smaller on this, but it's actually not.

It's the same seven inches as you get on the 1054 Zed but it's higher resolution. so yeah, it's just a bit of an optical illusion there that it's actually they are smaller. but the screen is as big as you want on a scope of this tiny size. really? so.

I Guess you just appreciate, like how much space was actually wasted with the controls in there. They've got the controls down the side. you know you either love that or hate the controls down the side and just getting rid of those and making it more Compact and vertical like that. Just you know, it really saved a lot of real estate.

so you're getting essentially the same capability. well, more actually, because it uses the new uh, you know user interface and features on the Uh from the Rigol 4000. but otherwise you know similar sort of capability of this, just in a much smaller and sexier form factor. It's just I I Wouldn't want to go back to this.

Sorry, but as I mentioned, this thing is bit built down to a price. If you want digital logic analyzer, you've got to go for the Dho 900 series. That would be a separate uh, like bang per Buck review in its own uh, right. There's no uh, arbitrary waveform generating generator capability like even externally and there's no ability.

You know there's no bird plot capability and stuff like that that you'd get with that higher end. Scopes But if you're just after an entry level four Channel scope. this has got all the capability of their Higher One including the 12-bit analog to digital converter true 12 bit across all the channels. Unfortunately, there is really no extra uh e-res mode.

It would have been nicer to have like an e-res mode and you know, otherwise known as boxcar average. And of course it's got a standard average in, but you know it doesn't have the ability to do that on the fly at the converter level to give you a greater number of uh software bits. But anyway, you can't complain. This is a groundbreaking thing.

12 bits for like, technically under 300 bucks? What? and testing the waveform update rate with a 10 megahertz? Uh, Sig Gen here aware, uh, looking at the trigger output on the HTO 4000 here and we're getting a maximum of about 27 28 000 waveform updates uh per second. So I've got a one second uh, time base there. and the great news is that the waveform update rate doesn't change even if you have all sorts of stuff on. So at the moment I've got color intensity gradient display on I can turn that off.

It makes really no difference uh at all. and if we turn curses on, it makes no difference uh at all. You just get brief interruptions uh By the way when you move in waveforms. but most Scopes are like that.

And also I've got measurements here as well I've got the frequency counter on by measuring rise times with all the cursor information and this is in Auto uh memory depth and yeah, we're still getting about you know, 28 000 or thereabouts, uh, waveform updates per second, but that's absolute maximum. but that's a 20 nanoseconds per Division and above, we drop down to 50 nanoseconds per Division and we're only getting a thousand now. once again, still in Auto memory depth and it's going to remain at a thousand four quite some time. Time Time base: I'm here a week to about two microseconds per Division and then it yeah, then it slows down.

but we are 128k points so we can manually, uh, change that to 1K uh points at the slower time basis and you go up to about uh, five thousand. but that's nothing unusual. All Scopes work the same way. So for the entry level price, it's pretty decent in waveform updates per second.

No worries. And if we turn on X Y mode here, it does slow down a bit, but now you've got you know, like we're doing some and we're doing X, y, and uh, your regular time base as well. So yeah, you expect that. Unfortunately, it does drop if we turn on a second Channel it goes down to about oh 7K uh per second just for having that second channel on there.

And if I've got all four channels on, I've got cursors, I've got measurements, frequency counter all going on. We're still getting about uh 2.63 k and check this out. I've got practically everything turned on possible I've got uh, color intensity highlighting I've got cursors I've got measurements frequency counter I've got the Fft math function turned on with uh, live Peak search as well with color intensity grading display and I'm still getting like 27. Uh, Peak K waveform updates.

So I'm actually reasonably impressed with this. It's not going to win any awards for you know, the fastest updating scope, but geez, this is like bare bottom of the range, uh stuff now. Absolutely amazing. Anyway, we are limited, um, by the display here of course, but we do have this little magic uh thing up here and we can actually move this and we can change and dock our waveforms.

However, we actually want these. I mean we can get rid of the waveform entirely if we want like that. Unfortunately, it doesn't look like we can like drag that across to make that that are smaller. But anyway, I can actually, uh, pinch and zoom like that and you can do pinch and zoom for the waveforms as well and then move.

We can turn off the intensity grader display if you're not a fan of that. There you go. color grading off like that and Boom! You've got your more traditional Fft like that. But yeah, you can drag stuff around so it is quite neat and we can, uh, make it uh, horizontal like that if you want as well.

and you can do this in combination with uh, the waveforms and stuff as well. so it's pretty neat and we can get rid of that and we can go full. uh screen Fft if we want. and if we get rid of the Fft, it'll automatically take us back to our waveform.

It's a nice user interface I really like it and I can't actually get the scope to Alias By the way, if you go down, doesn't have any alias in if you go small enough time based, slow enough way, there we go, no worries. but yeah, you expect that. But in general, like everything is like fairly responsive. You know I can play around with this no problems whatsoever and look, it's updating.

I don't know why the Fft updates like that. um when I move it. but of course if I move my waveform then you can see the actual uh, capture and hence any uh, math, uh, processing on there actually stops. So yeah, but it doesn't do that with the Fft so that's quite nice ice and I can pinch and zoom and look at that.

Beautiful! So the Fft function is actually quite capable and it does actually have one million point Fft capability. So if I take that down, you can see the noise floor eventually dropping there because we've got our got more and more data to work with and its update rate is quite fine. and everything's pretty hunky-dory And just the fact that I can move that and actually have that still update live, that's actually pretty impressive. You know it'd be nice to have like really funky stuff like little Peak and like live Peak indicators there and things like that, but you know you can get that from the table.

It's not as good, but it's not as polished and the cursors like they don't automatically snap or anything. they're just like regular curses. They don't have any extra functionality for the Fft math mode, but you know it's not the world's best Fft machine, but it's still streets ahead from the 1054. Zed Let me tell you.

and one nice touch in the user interface pun intended is that you see how we got the vertical scale over here. If we turn on our settings, the vertical scale flips to over here because they don't want it hidden under there or take up space there. So I you know that's nice. but I do find it annoying that if I do have any of these stats on, then I can't access the setup menu for the Fft here.

I've got to turn that down and then go up there. so I'd like to see that shifted over now just to see if we can see anything extra in the Fft with the 12-bit ADC I Was hoping to see a difference, but I'm not able to in this case. so I'm not exactly sure why. anyway.

I've got a 10 megahertz sine wave here with a 50 kilohertz Am modulation. There a modulation factor of 0.02 percent so that's like under the threshold for the 8-Bit and you can see right? We've got the spikes here. Okay, and if we compare that to the Siglund 1104 XE here you can see we're still able to see them there now. this.

um, I've got these set up to almost the exact same scenario. it's the maximum number uh, one Meg points, same time base, same everything. And yeah, the Rigol has a better uh spectral response and faster. but really, um, we can still see the 0.02 I'll change it to 0.01 and uh, it's pretty much gone there now and you might think it's those ones there, but it's actually not.

They should be smack in the middle. Let me actually turn that back up to there we go. It pops up there. So yeah, they basically got exactly the same response like that I expected with the greater ADC resolution to be able to actually discern smaller details like that.

but I'm I'm not seeing it. So what I decide to try now is a once again a 10 megahertz signal. but at 30 millivolts Peak to Peak and the vertical range to 10 volts per division, so 80 volts total. So that was so.

we're trying to look at a signal and there it is there. 30 millivolts Peak to Peak within an 80 Volt range and we can still. the Fft can still, uh, pull out that look. You know it's like goes well above the noise floor.

There can still pull that out if you try the exact same thing on the siglant over here. We're getting something on the table here, and once again, exactly the same settings where at 10 volts, uh, per division. But yeah, the Signal's not really there is it? So yeah, that's the 8-Bit versus uh, 12-bit uh converter. Not as a dramatic difference as I expected though, because if I drop this down to five, uh, five volts per division, it does actually start to peek out of the noise there, which is actually significantly better than the 8-Bit resolution that you'd normally afford.

So if we now have 5 volts per division, that's a 40 volt total. uh, input range and you divide that by 256 for the 8-Bit R converter, that should only be 156 millivolts per bit. but it looks like it is able to pick out a 30 millivolt Peak to Peak signal just anyway. It's interesting, test heart, but this can definitely still pick it out.

at 10 volts per division, that's crazy. Anyway, the Rygold does seem to have a slightly better noise floor. there's Pizza Peaks are significantly under minus 100 DB there. and here they're over.

So maybe you know, 95 ish, just mucking around at random. I've got a FM modulated uh signal with some um FM deviation. so 500 Hertz modulation with some FM deviation I've got the Big Daddy the Rodent Schwarz mx04 Um, so yeah, that's looking. uh, pretty similar, but up the siglant coming to guts are there.

It doesn't like that at all. Unfortunately, all the same settings and that's 15 kilohertz modulation frequency with an FM deviation of 20 kilohertz. Just to mix it up, there's your road. and Schwartz there's the Uh Rye goal.

and well, the siglant's got a lot of extra extraneous stuff happening out here. So yeah, nah. and really, if I just like play around with like some amplitude shift key in here like the Rygoll is just streets ahead of the cigarette like it doesn't like, it's just so slow. to update.

Yeah, there's no contest. Uh, the Rygal has a pretty decent Spectrum analyzer. Now as for pulse response of the front end: I'm using my Leo Bodner pulse generator here. Um, and it's absolutely perfect.

I Mean you can't get any better than that, No worries. And if you compare that with signal 1104, XE Yeah, not as good. So yeah, the Rygold has a better front end pulse response and it's the same perfect response we get on the Dho 4000 series as well. and just another reference point on that, the Rodent Schwartz Rtb 2004.

As far as front end noise goes, it does have a 500 microvolt range, but that is a software magnified uh from the one millivolt. So it's not a true 500 microvolt. But you know, for the price range, that's okay. Um, at noise we're getting uh, we're not terminated with uh one mego about 600 micro volts Peak to Peak about 66 microvolts.

um, Acrms. And if we compare this with the siglant at the same one millisecond per division, the same one Meg Point Although this can only do 1.4 Meg points, So yeah, you know, near enough, it's basically equivalent. uh, noise floor here. Although you'll notice that the resolution on the siglet just isn't there because, well, it's only an 8-bit converter so you don't get all the nice little fancy decimal points like you do on the Roygel the 12-bit jobby and it'll be 50 ohm.

Terminate that. There you go, we drop down to uh, 40 microvolts AC RMS around about just 380 maybe. and the singlet with the 50 ohm. It's actually, uh, no better.

really. Whereas the Rigol is, uh, quite significantly better with the 50 ohm termination. look at that. Beautiful.

Of course, it's not up there with the Rigol 4000 here, which can, actually uh, it. it has a 100 microvolt uh mode down here. So yeah, um, under like 18 microvolts RMS noise. But still, that's not too shabby for an entry-level Joby And as far as input microphonics go, you can actually get it on the Rygold, but it's not nearly as bad as the signaling over here.

Check this out, that's just off the scale and I I'm barely touching that you don't even have to breathe on it. Okay, let's have a look at the effect of the 12-bit analog to digital converter. I've got a a one Volta per division I'm fitting in a 100 millivolt. uh, Peak to Peak sine wave.

So yeah, it's really tiny. Basically, we can't uh, trigger on that so it's just Auto triggering. but it's there. Okay, maybe you can make it out and it's here I've got.

So let's basically stop both of those Scopes there. And so we capture a waveform. And now, because we've captured that 12-bit data, look at what we have available here. I'll turn that down to 50 millivolts per division there and we can see our one kilohertz sine wave.

Change this to 50 millivolts per Division And well, yeah, it's um, there's your 12 bits. That's what your 12 bits give you. And now you can get 12 bits for entry level price under 400 bucks. Unbelievable.

But there is a bit of a bug here. I Can go down to 20 millivolts per division, but and 10. But really, that is not the true. It shouldn't let me go to ten and five millivolts per division, Two millivolts, one millivolt, 500 microfolts.

Obviously, that is not the true representation, so it shouldn't let me go below what it knows, Um, to be the accurate calibrated range. So yeah, and they just haven't implemented that limit. A little oversight there. but anyway, yeah, it's It's very nice is it not? And yeah, the 12-bit resolution like you just get like beautiful, um, sharp waveforms on the screen.

It's just absolutely fantastic. So if you just compare that with the sigilant over here and this is with uh, E-res on it's you know, Yeah, look, look, it's more sharper, Expand that time, base out a little bit and there you go. Significant difference. And the quick button functionality here is really good.

So we can plug in a USB stick it will detect that and then we can USB device connected and Boom! We can just go quick and that will uh, save or automatically in this particular case, a PNG and we can go into the quick menu here and you can actually decide what stuff you want. Um, that quick button to do so you can save an image, save a waveform save. Setups are all the measurements. You can do a stat reset if you want, so nothing to do with the storage, which that's that's handy.

You don't have to dick around with the screen, you can just hit the uh quick button to actually reset your stats that's worth its weight in gold and you can record as well and format PNG JPEG and a bitmap and you can invert the colors and stuff so that's that's really handy. So if we set it up for record, for example, I mean we can just go into record uh in the Rygold menu here so we can do that. but it works the same if we just go over here like this and Boom! It instantly does the record mode enable on. but as you can see from the screen capture, it actually gets that date and time up in the top left wrong there because this thing as you saw in my teardown video does not actually have a backup battery in it.

There's no real-time clock. there's no ability to set the clock for anything in this thing, so that's pretty dumb. But yeah, low cost. They saved a few bucks.

Okay, so let's try out this uh record function here. What I've got is a packet here with an infrequent uh glitch so we don't know how often that comes up. but I've set my uh delayed trigger. so I've gone over here and I've delayed my trigger for 10 microseconds so that it uh waits for the packet because if you don't have that then you can get like triggering instability on your packet and I can actually do the quick uh button over here.

So let's just press quick here and boom it's going to record. It's going to record 60 different frames now. let's see if we've actually captured something here now. Unfortunately like although I can move this window around it I can't like dock it to a side, but I can minimize it.

but it would have been nice to like do that Neater so that I can see the waveform. Anyway, let's see if we captured something, we may or may not. Boom. There we go.

One, two, three, five, excellent three. So we captured all of those different frames there. Neat. Now your record mode is not to be confused with your navigation stuff here.

Navigate mode is actually, uh, different. so we can actually stop that and navigate just allows us to oh, scroll our waveform. There it goes. so we can just scroll it at a predetermined speed so that you can sweep through a whole bunch of, especially if you've got real deep memory.

You can search through and search for your Uh information. so they are just two different modes there. just be aware of that one and the number of frames uh, you can acquire is of course directly related to how much memory the scope has and what your current Meg points is. I currently got it set to the maximum of 10 Meg points.

So I can only get seven frames, but if we go in there and we change that to 1K for example. and then we go back into our record mode. 61 000 uh, different frames that we can capture and then we can actually scroll through like that with our finger and yeah, well. oh, looks like we haven't captured one.

or if we've been unlucky. Ah, damn it. Now you can visualize your waveform in other ways. If we actually turn record mode off and we actually go into the choir menu up here, then we can use the Ultra Require mode And this is, uh, the same one that's on the 4000 and the 1000 R series models and we can actually visualize it in different ways.

We can choose waterfall display let's give that a ball and there you go. We can actually stack them vertically like that, or we can have a mosaic display like that which actually displays our different waveforms. or we can actually show them adjacent like that and it looks like like we're squishing them together. And of course, in in this mode, your horizontal time base is not available because it's not a real thing.

it's just a visualization uh, window there. so it's a little bit, uh, confusing, but it's a powerful tool. I Mean, if we go back to normal, well like that, you'll find that our packets are much further apart like that. So that ability to use the Ultra require mode and just get rid of all that dead space in there and just stack them like that.

or stack them into a perspective format or whatever. It's really quite cool now. I've got the color intensity graded display on. Unfortunately, in Ultra Require mode, it doesn't actually do that.

It actually, uh, switches that off like that, but that's the same on the 4000 series model as well. And I do like the perspective display and check it out. You can see that pulse actually through the sequence of frames over time. here.

this is the oldest data. this is the newest one in the back there and you can actually you can see that data. Oh, we captured one. look.

You know. Boom. there. There it is there.

gotcha. Anyway, so all that stuff that you get on the one thousand and Four thousand Uh series model. it's all in here basically. so you get all the funky stuff in there.

Um, there are a couple of differences in the user interface. In fact, the screen on the Uh 4000 is wider and you've got this menu. This is the Rygold menu up here and it's like it's constantly up there, but it's like it can only show like two at a time, which is not very good. You might as well just use the Rigo menu over here, which uh, calls it up so you can see on the 4000 here series.

they actually have uh, four of those buttons over there so you know and we can turn on a DVM over here. So Digital Voltmeter, We can actually go in here and because we've got a 12-bit scope, it's going to give us better capability. We've got Acrms, uh DC and AC plus DC and you can see that here. It's giving us A It's saying 125 megahertz bandwidth.

So yeah, um, each aren't hard out. Any multimeter. We've got 125 Mega bandwidth. Uh, 12 12 bit.

It's not quite up there with the resolution of a multimeter, but uh, you know it's pretty good. Like at the moment I'm actually feeding in uh, 20 millivolts and there it is. Uh, 21 millivolts. There's a bit of an offset that's coming from my keysight generator.

Um, so yeah, it's not exactly accurate, but I can increase that by 0.1 millivolts and will it go up by 0.1 millivolts? You betch it does. Look at that, go up by another 0.1 millivolts and it should go up to two four. Or two one? Yeah, yeah, two four. There you go.

Nice. and you're not going to pay a panel of Neve uh for having that DVM on screen. In terms of like any, uh, processing, uh, penalty, a waveform update rate and you can Define the windows. We've seen some of that already, but uh, we can go in there and we can have extra y mode.

We can have a math mode. we can have measurements so we can add all of our measurements for example. And boom, we can, uh, pop those up there instead of having them like on the side like that so you can choose how you uh, want them. Unfortunately, like I said, as I said, you can dock these but you can't sort of like expand or contract them so we can.

We can dock that. But let's go like that and we can make that horizontal like that if you want. and we can add all measurements. for example, Boom, look at that.

So we've got tailored measurements. We've got all measurements plus our waveform as well. Pretty groovy, huh? And once again, we can turn that in panel information on the side, off or on like that. Neat.

And if we try out the serial uh decoder here, we can actually, um, turn on the event table as you uh saw there I fit in a signal 19.2 K bits One Stop Bit odd, uh, parody. um, the threshold by default was set to like zero I don't like why I don't know if like a couple of Scopes I've looked at have done that and it's got uh, four different decoders there, so presumably four decoders at the same time. and bingo there it is. Um yeah, I'm using my keysight generators I was generating the word keysight there.

sorry there right gold. But uh, you know if you had the training signals built in and as far as uh, board rate goes, I'm not gonna test this uh to the extreme. Apart from the fact that it does work, goes up to 10 megabits up a second. it's like choose your fighter No.

20 meg bits per second. There you go or a user rate? Wow, can it really do 20 megabits per second, Having the serial decoding on seems to be slowing down the scope though. like even like using the menu um, operations and stuff like that. But if we go into the options here, you can see that uh, the serial decoding is forever and so the uart and the uh, you know, I squared C embedded uh, serial stuff spy and I squared c.

um and there come default standards so no extra charge. and yeah, it can do a one megabit uh per second signal up. where'd it go? There it is. um yeah, no worries, that's what's supposed to come out.

It's ID um and that's just the thing. It's uh, transmitting. but yeah, it's decoding that properly. one Meg bits.

No problem. Well well, we we have a bug. I was playing around where we you have a look up. at least it's kind of sort of graceful rygolds.scope isn't responding.

Um, close up because this is running on the Android operating system. There's much discussion over this on the EV blog. Forum but this is the first time I've had it crashed. um, using this thing or how did it lock up or do anything? I was mucking around with serial uh decoding.

I was changing over to I squared C bus and it just went boom. So I don't know. Close well, close up up. Nope.

Okay, so is it running like the decoders as apps or something? Is it? That's that? Could be interesting? No, it's it's actually recovered. Jeez, that's actually uh, like I'm It's bad that it something happened to it, but it's good that it actually recovered and didn't have to reboot. So that's interesting How well I was lucky to get this. Um, you know the EV blog curse of uh, reviewing stuff? Um, something always goes wrong.

But um, yeah. okay. well I'm gonna get back to it I didn't have to reboot. That's interesting.

Hmm. and it's reading a one megabit per second uh SBI bus as well. You can see that it's decoded road because this is coming from my uh Roden Schwartz Rtb. Um, and so it's got Idn.

and then Road Schwartz it's actually decoded that. No problems whatsoever. This is after the crash and of course just be aware when you're pairing it through a USBC plug pack like this, it is isolated. It is not Maine's Earth to reference.

So what I've got at the moment is I've got a little bit of common mode noise I've done a video on this. but anyway. um, so this scope is floating at the moment. but it comes with an earth lead and there's an earth connection on the back.

So if I actually Earth that boom it goes away. So just be aware of that. You're dealing with essentially a floating scope here. Now, that doesn't mean you can go use it for your high voltage measurements or whatever.

Don't go doing that Okay, you're gonna come a gutter, but just be aware of that. And that's why they do actually provide the lead. just in case you're having any sort of issues and you need to, uh, Maine's Earth reference it just like every other normal scope. Now, if you're hoping that the 12-bit converter gives you actually extra range.

uh, dynamic range outside of the visible waveform area. Not really. It does depend on the Range like I've got a sine wave at the moment. Okay, so we'll put that just outside the range there.

and if we stop that, it does. Looks like it does actually have that capture range there. Okay, but if we actually go a bit beyond that, so let's put the Vernier on. let's just go a little bit higher than that, and then we stop it.

and then we bring it back like that, You'll see that it's clipped. So so yeah, nah, sorry. Although the manual does actually specifically state for calculations, you've got to take the eight divisions into account. But yeah, it seems to have a little bit more than that, but not much extra Headroom sorry.

Although, there does seem to be a display quirk. Check this out right? If I stop the waveform like that? Okay, then we can move that up and down, right? No problems whatsoever. But then if we expand that, Okay, and then we move it like that. Look, it's chopped off.

Look, it's chopped off part of the waveform there. So and it'll it'll eventually come back if you if you change it back. But yeah, there's just like a movement based uh, sort of like software clip in there. See, check that out.

I Mean you know that's nuts, right? And then Bingo it's come back right? So yeah, and that's that's in stop mode. So yeah, that smells a bit buggy. Now there's actually one step backwards they've taken from the Ds1054z. Well, it's kind of a pro and a con.

There is no help system. so if you're a beginner and you want help on any of the items, um, there is no help button. You have to go into the Rygon menu. You go into help, which is fine, but it actually calls up the PDF document because this is an Android operating system.

It actually displays. it can display PDFs and documents could probably play Doom and you know all sorts of stuff like that. So you actually get the full PDF help manual built in I Guess that's kind of great, but the Ds1054z said it actually has the help button on here and you press the help and if you want to figure out what any button on the scope does like ref I don't know what ref is. There you go.

It gives you reference and uh, you know you can do trigger modes and stuff like that. Or you can do like, uh, the rise time over here and it shows you all the information to do with the rise time and whatnot. So you know in in a way. this is a much more polished and useful help system for a beginner.

But I can appreciate the ability to have like the full PDF documentation in there as well. I Don't know know? leave it in the comments down below. which one do you prefer? I'm not sure. Let's try out the remote interface Just plugged in the Ethernet.

No worries, it gave me the IP address here. Your mileage may vary on that, of course. Uh, we've got print screen, network status uh network settings web control one gigabit per second there. Um, we've got a um Skippy uh command thing.

Nice. Okay, so we can send uh commands if we need to so we can. Well, we can send it. there you go.

Idn connected and it's actually returned. The model number X excellent and serial number fantastic. We can set security if we want. uh, what's Rigo web? Ah That's just their website nah and web control.

That's what we want. Whoa. We're up. It did a pop-up that makes sense because it's mapping the resolution of the screen instead of my 1920x1080 uh screen here.

it's mapping that so that makes sense. So this is this is pixel correct and I'm looking at the update rate of that screen and that looks uh, bang on there. So yeah, no problem. What's oh, it's even beeping over there because I've got the beep turned on nice.

Yeah, everything's yeah, it works exactly the same. and because there are like a couple of functions on this you can't really do without the or it's difficult to do without the uh touch screen. Yeah, this is. This is fantastic.

This is absolutely instant. No problems whatsoever. Yep, but we don't have like, uh, the control like version of it. Well there we go.

So the problem is, we don't have any uh controls at all. Um, so like the thing I find myself using the touchscreen for yeah, a good majority of stuff but simple things like uh, your time base and your vertical uh controls and stuff still using the knobs so you know they're like you can go in there like we can adjust that and we can go in. and yeah, I mean we can change it like that but like yeah, nah, you know I'd like a control version but I can I can live with that. That's fine, it's the whole thing we're testing here is that it's instant and it seems to be.

so I can I can drop that back down I can I can re-re-dock like this for example it it's all working exactly the same uh, latency as you get on the real scope. Nice. That's a winner. and if we go full screen on that, uh yeah, it's still pixel mapping like that so it won't dynamically, uh, expand out.

So um, would this work on a shoe phone now? I Almost almost missed this. Um, times one times ten switchable passive probes. You usually don't think anything of them. Well, these ones are actually rather special I think it's the PVP 3150 and you know it's it's a nice decent.

um, you know, times one times ten switchable Pro But the thing with uh times one probes and I've done a video on this I'll link it in up here and down below if you haven't seen it. Uh, the secrets of Times One Oscilloscope uh probes is they usually have a really poor bandwidth. like six megahertz or something like that. this one DC to 20 megahertz.

Now that's handy because you often want to use one of the applications for using the times. One position, for example, is measuring noise and noise is typically measured over a standard bandwidth. Just an industry standard. Uh, because you have to pick something of 20 megahertz and that's why oscilloscopes have 20 megahertz bandwidth limits.

Well, if you've got your standard Times One probe uh, you're actually not getting in the noise over the full bandwidth, this one's DC to 20 megahertz. So let's test it. So I've got the Rhone Schwartz Mxo here and I've got it connected up using the frequency uh response analyzer in times One uh probe mode And sure enough, I've got it going from 100 kilohertz to 100 megahertz up here. and sure enough, the blue one here, the red ones phase and the blue one here is the bandwidth and 10 megahertz there.

it starts peaking up at, you know, for like like at a couple of Meg it starts going up. We're only talking like you know Point not even half a DB there or something and it Peaks at around about that 25 megahertz Mark or they're about to call it 20. So like and it's actual minus 3 DB bandwidth. There's something over in the order of like 56 to 60 megahertz something like that.

so um, really Well, you know you wouldn't use it that high, but but the fact is, um, yeah, you would certainly use it right up to 20 megahertz. so that's really handy now. I have to measure like over six megahertz one and see what we get. All right.

So I've got this signal pp5 100 megahertz uh switchable jobby and its uh data sheet value is a very typical almost uh Universal standard six megahertz bandwidth in the times one position and there you go I've just done the sweep. It is, uh, significantly different. It's a, you know, nice roll-off here. There's no like little Peak before it, uh, rolls off like we saw on the Rygold one.

but um yeah, it's about 3 DB down at just over 10 Meg there you know, call it round it to 10 Meg or something like that. so it's a bit better than the Uh spec of um six Meg there. but it's a good five and a half DB down at uh 20 megahertz there and its phase responses a little bit different as well. So I don't know which one do you prefer? Do you prefer like the higher bandwidth with a little bit of a peaky on it? or do you like your nice boring, slow roll off six megahertz? Jobbie Leave it in the comments.

So have Rygal actually changed the market with this Dho 800 after using this thing for a week? Um yeah, I Think they have I mean I for the price point. Once again, it's all about the price point and for the price point, you might as well go for the 12 bit. To my mind, the four channels with the 12-bit and also the capacity of touchscreen as well plus the Visa Mount and the USBC and the HDMI output as well as standard uh, on these things. Now wait, they've sent the Benchmark for what you expect on a 400 class Uh scope, which you can actually get for 299 bucks.

So a lot of people are going to ask, how does it compare to sort of like arguably the best bang per Buck uh, four Channel entry level price point scope at the moment, the Sigilant 1104 XE they have lots of different models would just run with the XE because that's kind of like, uh, the best pick of the bunch. Well for starters, this is 100 bucks. uh, more expensive base model price, but it is expandable with the logic analyzer and the arbitrary waveform. General Ready to do Bow plots and stuff.

So really, you can't really compare this with the 800. you'd more compare this with the 900 and at that sort of price point, I'd be going for the 12 bit so don't take this as a definitive shootout between these because I'd have to like that's a whole separate video. Leave it in the comments down below if you want really want me to go into the nuts and bolts on that could take a while like this is a decent scope like it's still very good if you can get it for like a really good price. But now to set the Benchmark for 12-bit HDMI Output capacitive touch screen is a standard and like a higher resolution screen and the Visa Mount and the USBC and I like I'm not seen I'm not seeing the case for anything else.

I Think Rygola are going to have the market to themselves with this new scope. either the Dho 800 or the Dho 900. I Think the other manufacturer is going to be scrambling to catch up and they've sent a benchmark. sorry.

If you want an 8-bit scope, go for it. It's fine, but I like 12 bits I think I'll take the 12 bits. So if you've got a 1054, Zed should you upgrade? Uh, that's a harder case. but if you want to gain more um, bench space if you want to put it on like a Visa Mount and just hang it over your bench or something like that and have the touchscreen capability and you can use a mouse with it and you get that 12-bit upgrade and higher resolution screen and more as some more capability in some areas.

I Like The only thing that's not an upgrade from this is the help system. Um, this technically arguably has a better help system. This just displays the manual as a PDF but I Don't know. That's a hard question whether or not you should upgrade.

If your scope's working for you, then just probably save you money, spend your money on something else, build some projects with it, or something like that. But if you're in the market for a new entry level scope, uh, rygold have an absolute killer that's smash it out of the park. Unbelievable. Um, they really have set the Benchmark again which started with the 1052e, then the 1054, Zed and now the Dho 800-900 series.

So obviously that gets a huge thumbs up. Double thumbs up. Big funds. Anyway, highly recommended or at least recommended that you actually really check this out and consider this uh for an entry level scope.

As I said, don't buy the two channel Joby get the four channel. So this has got winner written all over it I Suspect it's going to fly off these shelves anyway. Um I hope you liked that video. If you did, please give it a big thumbs up.

And as always you can discuss down below and over on the EV blog. Forum I've done unboxing video this on my website. First impressions: I've done a tear down video of course and there is the uh full review video as well if you want to go into all the nuts and bolts of it anyway. I Hope you enjoyed it.

found it useful. Catch you next time.