Hi, it's cheap oscilloscope time again because FY keeps sending these things into the mailbag. In fact, they sent two. They sent another one of this with the transist tester thing. You've seen that before, but I'm not going to do that in this video.

They keep sending them in, but people seem to like the like value for money proposition in these lowcost portable Scopes and the videos on these seem quite popular. so I don't know. Let's take a look at it. twoin one digital phosphor oscilloscope not that monochrome rubbish.

Now we get um: color intensity graded display, high voltage anti-b burning protection cuz it's important that you're a cill scope doesn't burn uh 5 MTS per division, high sensitivity 180 MHz analog bandwidth We'll see about that 500 Meg samples per second and this currently is on special at like 40% off. granted. um at for 137 Yankee bucks or 217 Aussie bucks on special. So let's take a look at it.

I mean the the F We've looked at various uh FY ones before sorry I pronounce it FY Some people pronounce it Fury I think I called it that when I first I don't know, whatever. Um, but they basically the summary of these things has always been uh, over promised and underperformed. That's pretty much been uh, the verdict on the uh, previous ones. But you know you do get a lot of potential bang for your buck.

so let's take a look at it. Um, it's obviously a duel channel, so got two 200 Meg uh, switchable probes there. they look okay. We got ourselves a manual that looks reasonable actually.

so I don't know. Yeah USBC so it's going to be USBC rechargeable. We do get a cheapy uh plug pack. so yeah, I don't trust these things any further.

They going to throw it one of these Yankee plugs so that's no good for me. but uh, you know standard. USBC So seal for our protection. let's have a squiz and look what we get here.

Um where's where's the blue? yeah, um blue on there. but we got like a fluke yellow. So anyway, so we got screen protector on there. So will this thing overpromise and underperform? Well, there's only one way to find out.

Is it charged? Can we turn it on? There you go and wa that's a that's a quick boot that's nice I like that. let's let's do that again. Can I just press it once now. a problem with that of that's really good.

Uh, a problem with that of course is that. um, you could easily bump that if you know cuz this is portable. put in your tool bag or whatever and you could easily bump that power switch. So I'd like to see some ability to lock that out.

but uh, standard BNC inputs. um, nonisolated of course and it's got a Sig gen there I'm not sure how useful a Sig gen is with just a pin in it like that. Um, it's not really a useful inter face, but okay, Physically, this thing is quite. uh cute.

You know we've got the rubber baby buggy bumpers around here and that's all pretty good. And we got this huge tilting bail at the back like that so you know it's not, uh, falling over anytime soon, so that's pretty groovy. But I'll tell you what, that screen is really bright I've got my uh, bright studio lights on here and that is like the angles on that are really good. So yeah, no worries whatsoever.

now. layout wise, they've changed it again. We haven't seen this before. uh, volts per division up and down, but we don't know which.

uh Channel we've actually uh, selected there. How do you select which channel you want? uh, that's nonobvious is it channel one? But how do I get rid of that? but like it doesn't show which one is actually selected? So like I can press channel two? No, no. I don't like that at all. like I like the like.

the menus really nice. Anyway, you might think uh T might be for time base here. it's not. It's for your trigger level, but that's okay.

H is your time base for your horizontal like that? Okay, no worries, it's all fairly responsive. Can we just move with? yeah, yeah, that's actually really quite quite responsive. I Like that. and we've got measurement so that'll whack up measurements.

Uh, we've got menu over here. all sorts of stuff. It's it's really bright display I Really like it. So what does move mean? Slow movement or fast movement? I Think they mean updating right? Anyway, uh, let's whack a signal in this cuz we can't do much else I Still haven't figured out how to move Channel two? how do I select lety Channel too? It's not touchy fely Okay.

original. Um, that's just like looks like it just reset everything Channel enable on off. Okay, so we can probe attenuation okay. probe coupling, Fft display hard bandwidth.

uh, limit. All right. I've plugged in my Leo Bodar pulse generator here so let's see if we can do auto shall we will'll automatically adjust. Will we get our Square wave? Yeah, we do.

There you go. it's a bit of trigger Jitter there. But anyway, let's go up a division and then we'll move that. Oh 200 Ms 500 molts per division.

There you go. There's our trig level. We can set that to 50% We can move it around still in the business, but there's quite a bit of jittery on there. Wow, look at that.

I mean that's jumping around like a jack rabbit? Look at it. Me: The waveform updating seems fast. It's supposed to have 50,000 waveform updates per second. But anyway, it is measuring our 10 mahz there.

so no wers so we can do that and then we can go move slow movement. Ah, there you go. That's what the slow button does. Oh okay.

Nice. Okay. fast movement. Okay, that's good.

I Like that. Okay, so we'll stop that. And oh, there we go. We can see our sample points there expand like that.

There you go. You can see that's interesting how it sort of gave the dots, but there is a that's the color, intensity uh. graded display. No, that's the fastest time base we can get.

actually. There you go. 5 NS per division. But uh oh, we can see our samples there that all seems to be working nicely.

Rather like that. and I'm not sure if it's showing up on screen, but there is really a faint line on there so it's not just dots. We're not in dot mode. Check it out.

There you go. it is, uh, jumping around like an absolute Jack Rabbit And of course, the pulse response on that is certainly not the best. I Mean that's just. look at that.

Wow, That's look at it. 500 M samples per second supposedly. But look at the look at the Jitter out here. anyway.

Measurement menu on uh. parameter measure channel one and we can go to from Channel one to Channel two so we can have different measurement parameters. You can see them ticked over here. Can we jump over there? How do we? How do we jump from there to there that that is nonobvious? How does that? How does that work? You can see that we're getting some cross talk onto Uh Channel 2 there.

Granted, Channel 2 is down at 5 mli Vols per division, so you know you can forgive that, especially on such a lowcost scope like this. But it's only there if we overload it. Check it out. So if I go below, we get no coupling, but we go above boom.

So that's coming back through the supply rail of yeah, something's happening with the input amplifiers and that's coming back through the supply rail I'd say and being picked up on the second. Channel Not a big deal, but it's there anyway. It does have a zoom mode. Look at that.

There you go. So we're expanded in. We can move our window like that. Can we adjust? No, we can just move that up and down so the horizontal changes once you're in Zoom mode and you're out.

So if we go like that and then we zoom and then we're in, then we can zoom in more like that. Okay, and then move it. That's working nicely now. it's exactly the same in the center there as it is right out.

um, over there. So yeah, that's that's not terrific is it? Aha and look at it. significantly drop down when I turn off channel two there. If I turn channel two back on there, it's back.

Oh, Finally figured it out how to change the channel two. look channel one up there. You press mod okay and that's your channel 2 selector. Oh oh look.

Oh and but it doesn't show like a visual highlight down here. You got to look up there. Oh just ah, that was so nonobvious. Oh anyway, check it out.

There's actually quite a lot of capability in here. You've got uh system settings, you can set transparent menus and you can have USB sharing mode. What is that? Uh, does it output power or something? Um, automatic? uh, shutdown factory settings disc format. We can turn on horizontal and vertical curses.

We can do parameter uh, measurement and I have figured out this menu. It's the it's the okay thing again. So you go okay and then you can choose channel one or Channel two and then if you want to go over there, you choose okay and then that goes over there and we can turn on like RMS uh for example. and we could have min max.

So now there you go. We jump back here and we've got all those extra parameters up there. It'll continue to fill them up and you get less and less window. uh, space of course.

but you know it's It's quite nice. We've got a data browser so you can actually save uh, the screen at any time, which is, save P here and it just saves the screenshot. That's really quite nice and it works even in like, in any mode, any menu system, or whatever. So that's really quite neat.

Now, this is interesting: Capture output, cut out a part or whole part of the current waveform signal and save it as an output on the signal generator. So I'm in Channel One mode now. Okay, if I store that can I do the capture output thing. Cut out that right.

So now it's look we can. This is really quite neat. Look at this. Wow.

this is this is fancy panty right? So I can cut this out now. Can I do the move thing and make it slower? Yeah, look at that. I'm actually liking that. now.

how do I uh, change to the next menu? Oh, that one over here. is it. How do I change that one? I don't know. No.

I've done it. Okay, I've captured it I'm going to see if we're outputting anything. so no, that's just the Sig Gen. But where's our Dy capture output? Okay may is it too high frequency? Cut out a part or whole part of the current waveform signal has saved as an output of the signal generator.

Is that one that that's just a 1 KZ Square wave. That's not what we the waveform we captured. so I I know. ah and then cursor over there.

Okay, there you go. Let's go up. We can go up to a megahertz. There you go.

It instantly instantly adjust up to a mehz. But we can we adjust the horizontal while we're doing that? No, we can't We've got to go out of Gen mode. But that's all right. There we go right.

And let's uh, trigger off channel two. So trigger mode Auto Rise in trigger channel channel two. There you go. It just froze.

Well, it locked in and you go outside of the range. Yep, you go just outside. so the trigger value seems to be pretty accurate there. Okay, it looks like we have significant DC offset on that signal.

There You can see where the ground is. You can see up there where it's uh oh, it's it's quite off. I need to change the trigger back. So yeah, why do we have that DC offset.

There? Is that really there? Uh, there is no ability to set DC offset there. So is that like I've got to assume it's really there I Mean that's not good if it's actually there like that's that's significant. We're 200 MS per division when it's got like 250 Ms offset or something. I'll verify that on a real scope.

Sure enough, that's got a huge offset that's like 400 MTS offset there. Um, why does it have an offset? That's nuts. And check out all this. Um, burst noise on here.

And no, that's not because this scope isn't grounded I can ground this and we can go to my crazy fast updating Mxo 4 over here and uh, you can see that. Look at the look at the noise on there. Unbelievable. So like we can stop that we can see that that's just picking up all sorts of crap there that's picking up like is that like common mod stuff from my lab here? It probably is, right? it's picking up all this burst stuff, but it's on the Sig gen output.

I I Would not have expected that. There's the S Wave look and there's just so much noise on that waveform. it's just triggering like buggery. Okay, clean that up a bit with some Rfr rejection on the trigger there.

but oh goodness. um yeah n and absolutely no amount lack of ground system grounding actually. uh, fixes that. I've used another totally floating uh scope here this mix IG and we're getting basically, uh, the same thing.

you can see that there. So um, and I don't see a way to adjust the signal signal level the output signal level on this thing. So just like, just pretend this thing doesn't have a signal generator, it's useless Anyway, with a totally non-usable just pin like that for the output I'm I'm just going to ignore that Just like no, just imagine this thing just does not have a function generator. there's There's just no point, and technically it does show an Fft here.

but really, you can't do anything with it. so it's just it's nothing more than a toy. Well, I must say it's got a rather nice intensity uh, graded display there. Got the 100% modulation 1 mahz signal there trick.

It's having a bit of trouble triggering on that as a lot of Scopes do. so that's okay. and if you want to adjust that, of course, you've got to go into the Uh menu over here and you got to go over and you can't really see it in the background so you don't really know what you're getting. That's 8% and that's 96% There you go.

So it does work and well, there's 100 mahz. Watch what happen happens if I turn Channel 2 on though. it's going to go wobbly. Look at that.

I'm a Okay, let's just check the amplitude here. We got RMS uh 9 16 uh 9134. So yeah, it's basically bang on. That's 1 MHz 10 MHz 920 versus 940 there.

Okay, so at 100 MHz there we're looking at uh oh, let's say 91 M volts and here here. Uh, just to eliminate any probe in, we're talking 953 Ms RMS So significantly over. Okay, I've got 140 mahz there and it's showing 1.24 volts there and we plug her in 1.24 1.04 So yeah n anyway if 150 160, 170 180 so it looks like it does have its claimed 180 MHz bandwidth. Oh oh, there we go.

We've hit some uh Alis in there. It doesn't like that at all, but we can actually go up to exactly 250. You can see that that's a beat of the sample rate there. So yeah, so it it does technically have it 180 MHz bandwidth.

There it is uh 916 Ms and should be 860 so you know. Look, you can't expect this to have the claimed 180 MHz bandwidth like it's not what you buy for. it's going to be not. FL the front end's not going to be great like a proper scope Etc it's built down to a price, so just I don't know even know why they bothered like specking it up that high.

It's just it's kind of pointless. All right, let's do a quick tear down see what's inside this puppy. I did get the screws out. So how do we? is a spudger required? Spudger may be required.

Sure. I unscrewed it. That's what she said. you got to peel.

Oh, you got to peel those back. Do you holster real? Look, You can see the holster really integrated with that. Jeez. Oh jeez, the case designer had a field day on that.

Here's our there's our battery. Jeez, that was fun wasn't it? the Uh 11.1 wat hour jobby there. You could easily replace that if it gets a little puffy puffy. but uh, here you go.

that looks pretty nice doesn't it? Two metal cans for the front end, but like I said like why do you need 180 MHz in something like you don't This thing's built down to a price. so yeah, yeah n what's that? What's an Ef2 L 45 LG Oh if I can find the info, I'll put it up there. 500 Meg samples per second 180 MHz they like to claim these Banner specs and oh look, oh come on the Adc's come on. just tell us what ADC you use.

Seriously, they've just laser etched those off. Anyway, we got some Trace length match in there. There you go, so you know they they've done the proper business there with the PCB layout. No worries.

So yeah, are they just off the shelf TI Jobbies or something? Okay, what's the all winner F1c 100s? Well, by the looks of the location here with the ribbon cable that's going off to the Uh LCD not much else. There's another wind Bond Parts upside down. all the electrons are going to fall out so that would just be a nice C prom with it. and uh IP 2312 that looks like a switching converter.

There's your 24 MHz clock there. Uh, more power stuff up here? no worries. So that all looks nice, nice and tidy. 25.

Oh no. 25 Mega over here. So we got a 24. Okay, so the 24 is for the all winner and the 25 over here.

There you go. That's for the uh, the main processor here. Another laser etched part. Seriously? an eight? Pino Come on.

Lots of discreet trenes down there. Some more over here that's possibly local. That'll be local voltage regulation for the analog front end, so that's rather interesting. What is that? Arrangement It's almost as if like they got like four Regulators there.

No, surely not. Anyway, um, there's our USB and and um on on the other side as well. It's interesting. Okay, nothing else doing down there.

We got Multi Shot multicolor shot down there. there's your LCD uh no, it's just plain label and the bottom of the board. Absolutely nothing. There you go, but they do have look.

they gone for a shield over the BNC there. Why have they gone to that effort? Nice attention to detail, but this is not going to be a high performance analog front end. So I don't know, but like they're at least taking it seriously. There we have it.

There's under the cans Reay down there and is that a yeah 4 Classic 451. There you go. You always find a 4,000 series uh Max in there. no worries, don't Not that eight pin part there is.

That's interesting is that an input amp. There's a input can and you notice our input must be under must be under there so it must be on the inner layer. That's interesting, but uh, there a couple of unpopulated Parts there now. I'm going to have to look up some of these parts like they got a huge number.

these so 23s, 3 em there and these two eight pin SOS seem to be doing the the uh, amplifying work there. A six pin s not a little tiny, six pin five pin jobby number six. It's interesting, is it not? Well there you have it that those three em Parts uh these seem to be, well, don't off if they're genuine on semi. Maybe they're equivalent.

uh Parts but they're VHF UHF uh transistor Npn Jobbies? Yeah, so there's a whole bunch of those one two, 3, 4, 5, 6, 7, 8, 9, 10 is there's 10 of them? Wow. And the others are A13, Y2 and the RS 622. There seems to be just a 7 MHz Railto Rail uh C Opamp. So that's not doing any of the RF stuff that's not the front end that's just offsets.

um, and stuff like that bias that's not part of the Uh signal chain at all. And yeah, due to the placement of these parts down in the bottom corner. I Don't expect their part of the signal chain either. Like that looks like possibly a uh low Dropout rig.

So yeah, um, this band's probably doing offset, but it seems like the signal path is all discreet transistor here. I Don't know what an R1a is. didn't bring my pirate hat and then you've got all these outside of the Um metal can here. so all these are outside of the metal can.

What the why? So these Y 2 parts over here. these are just uh PMP uh, transistors, nothing special and a 2057 there. Uh, the first reference I get is to an LTC 2057 which is a high voltage, low noise, zero drift. uh Opamp.

Okay, doesn't make sense cuz they're usually pretty pricey. Uh, they're just a 1.5 Meg um game bandwidth like it's a real high schmy high spec low bandwidth up amp. um no no, there's no reason to have that there. so that's obviously not it.

And this A1A looks to be a uh Lmh 673. let's go to the videotape. Okay, now we're talking There You Go 1.2 gig low Distortion Opamp. We shut down down so the 6703 that seems to be the there it is there.

Where is that in the chain of things? H It's right over here. so maybe our input comes in here and we got some switching here and it goes there and then over to here. and these are a differential driver for the ADC perhaps relatively compared to these days. Primitive solution here.

Um, you know, nowadays, like the big manufacturers all have their Asic front ends and stuff like that, right? So you get your 800 MHz nice flat, beautiful schmi uh, analog front end in like single chip almost these days, you know cuz the uh, the biggies are now rolling their own analog front ends and stuff. So yeah. anyway I'm not going to reverse engineer that any further. I'll put some highres photos of course as I always do over on Evev blog.com No, it's just no quite an unusual front end.

Um, so yeah, but it seems to be all over the shop. it's I don't think it's particularly flat. and yeah, technically it's 180 mahz and but it's just like 500 Meg samples per second. Okay, you turn on two channels.

that's 250. Yeah, it's like I don't know. like a solid nicely designed 50 megaherz bandwidth. Front end would have been plenty on a scope of this uh, cost and and you know, class.

So yeah. I I Don't know why they bother trying to pump these numbers up. And a rough estimate of the current draw: 9 amps. So uh, 3,000 milliamp hours.

You're going to get a little bit over 3 hours here. nominal. So I'm not sure what the spec is, but it's probably around that. And yes, the EV blog BM 036 is available on the EV blog store link down below.

So there you have it. There's a quick look at this. uh FY DPX 180h digital phosphor oscilloscope. Thank you very much to channel jobby like and for like what 30 bucks us on uh special I have not surveyed the market I don't know how it Compares with other little uh, sort of like pockety two channels not quite pocket but you know, like a portable uh thing that you can like throw in your tool bag and well, you've got a scope uh out in the field for you know, pretty cheap and well, it is what it is.

You know you've got to like weigh up the pros and cons of this thing. It's not like a high-spec uh scope. you wouldn't have this as your only uh scope. for example, it's just, you know, designed for like a pocket portable thing out in the field.

Although I think a major concern is that, uh, technically like, all you got to do is bump that button and it's on in your tool bag. and when you want to go use it, uh, you've come a Guta Um, so yeah. I think they really need to fix that somehow. But anyway, it's an interesting little beast.

I Think they just try too hard on the specs like you don't need digital phosphor interface. you don't need 180 megahertz bandwidth, You don't even need to even try to do stuff like that. You don't even need to try to have a waveform gen in the thing and that uh, copy, uh over whatever it C capture output over to the signal gen and stuff like that. It's just an absolute waste of time.

I Don't know why they bother, but um, anyway, they are cute and they are useful and it does actually work, but just don't expect much from it. So anyway, I'll leave a link uh, down below to the genuine FY store on Alexpress. You might be able to buy it other places. it's currently on special, so check it out.

you probably wouldn't at full price. Um, the full what they're claiming is full retail price. You're probably. you know it's not that great, but uh, currently at low 40% off or something like that.

I Don't know if you're in the market for a portable little scope. it's maybe. Anyway, link down below. Thanks FY for sending that in.

Catch you next time.