MUSTOOL MDS9208 Multimeter/Oscilloscope/Signal Generator Review/Teardown
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- čas přidán 1. 06. 2024
- Here, I did a review and teardown of a MUSTOOL MDS9208 DMM/Osc/SigGen. The builtin oscilloscope has a 12 MHz bandwidth and it has a 6000 counts multimeter. Product link: ban.ggood.vip/144mi coupon code:BG8e3ffb exp:2023-10-31 Teardown pictures: www.kerrywong.com/2023/09/22/t...
00:00 Overview
02:10 Power on, walk through
05:13 DC voltage measurement
06:26 AC voltage measurement
07:31 Min/Max, hold, data logging
10:17 Millivolt range
11:14 Ohm/diode/continuity
13:15 Capacitance measurement
14:08 Frequency measurement
16:33 Current measurement
18:01 Oscilloscope mode, bandwidth testing
20:45 Other menu items in Oscilloscope mode
22:09 AM/FM signal
23:15 Single shot
24:24 Oscilloscope in mV/V mode, measuring a square wave
25:49 Signal generator mode
27:51 Current consumption
29:58 Teardown - Věda a technologie
I own a couple of these scope meters. They aren't as good as a nice bench scope, but they do ok for a quick signal check in the field. The signal generator is a nice add-on. Could be useful if you want to send a PWM signal to see if a pump or motor is responding correctly. So not a bad meter and if you are a service tech that works in a cat 2 environment I would say go ahead and get it.
I bought one to simply look at sine waves on portable gas and Propane generators. It should be perfect for that. The multimeter is a nice convenience since I have 5 other meters.
Excellent review and tutorial. Thx!
Thanks, Kerry. As always, excellent review.
I bought one recently sight unseen. I now know the quality of the product I purchased as viewed by an expert, AND I know how to use it in detail! Thanks, friend. No manual necessary.
Love the review
ZT702 with its 4-way button panel has more intuitive scope controls.
I wish there were more usb scopes for iOS (iPhone or iPad). No need to waste money on a screen and buttons.
The most important role of an oscilloscope is input voltage sensitivity. If he does not have a normal adequate sensitivity, then this is not a device, but just a wooden display meter))
Agreed. 10mV resolution shall be better.
Thanks Great review! Question can use scope mode in mA/A range? MD8208 is can.
Nice
Great review ! but try as I might I just can't find any love for these things, maybe it's the styling that does it as I look at this and think that it would look good with Mr Spock holding it on the bridge of the Enterprise and I can't take them seriously !...my bad...cheers.
Hello, overall video is superb! Just wanted to ask is it worth buying for someone who would use it occasionally, for smaller workshop at home? Thanks in advance cheers!
50 mV/div? Are there any portable scopes that can at least 1 mV/div?
Hello. I bought it too. My (mA) is not working. No matter what I do, it doesn't work. Which part might be faulty? Can you please help?🙏😢
That's a sharp looking meter even when it's turned off. Once again good video Kerry.
This is unrelated and i know you'll point me the right way. Im a hobbyist and haven't played wirh rf yet. What's the benefit of having a rubidium-gps time standard or the like? Im thinking about getting my amateur radio license here in canada. I spent a career on the tmr and uhf systems before they phased out the vhf system province wide, except for fire services backup. Bell has a push to talk payment system so they must be making a killing haha. We had a really old vhf system and the local motorolla guy put his kids through university from the lack of reliability once the open air pcbs started to dry rot and made it almost impossible for the poor guy to ever get a day off. He was "hit by a bus" person they always refer to in university because Motorola was too cheap to have two employees. It's funny, local taxi services and drug dealer "delivery" companies upgraded to trunked mobile radio years before us. I digress.
Not sure if you have watched my video on the Rubidium standard I have in my lab. Anyway, you can use it as a known frequency reference to calibrate other equipment. Or you can use it to drive all your lab equipment (SAs/RF gens) as external frequency reference so all of your equipment are locked and in sync with a known precision frequency source.
@KerryWongBlog cool. Thank you. I'm a quick learner but there's so many topics in this field.
Very accurate and stable frequency references are useful at higher frequencies when trying to do modes like SSB. When multiplying the frequency up to 10Ghz a tiny amount of frequency drift becomes a lot.
In Europe and Asia they have an amateur linear transponder on a geostationary satellite that downlinks on 10Ghz (and uplinks on 2.4Ghz) . Standard 10Ghz LNB drift too much for SSB, so they use LNB's that can take an external frequency reference. It sounds like a very interesting bird to work but there is no LOS to North America. That said I have read something about using big dishes and lots of power to make a contact from St. John's.
73, VE1LX
The common socket looks a bit damaged was this from new?
I didn't notice it from the high res photos.
One REALLY annoying glitch is that it does not have leading zero suppression! 86.2 is much more readable than 086.2
How much you fill these reviews
If you can measure just 12 MHz and not more, the sampling rate of this device is 24 MS/s (probably 25) and not 50.
The ADC (MS9280) is capable of 50 MSPS, now whether or not they are using its full potential is a different story.
@@KerryWongBlog Check the maximum frequency that is displayed correctly. Is it around 12.5 MHz?
SMD fuses and shunt? Say no more...
It may be cheap, but it is nearly a heap of junk, ...crap 6k only count DMM (today anything under 10k is unacceptable), and the scope function is near useless, as well as the toy function generator. Sorry Kerry but this thing is JUNK!!!!!!!!!!!!!!!!!!!!
Disagree. I have 6000 Fluke F115 and I am totally satisfitted. Mustool from this video looks nice and probably can be used as a desk multitool for electronics enthusiasts who works mainly with DC. If you are living in a small flat you do not have space for a lot of things as generators, oscilloscopes and so on. Mustool is fine and can find its' users.
I disagree because I used both at one time (not this one but it was a Mustool brand with 20Mhz). It was about the same to use, which for me is cumbersome, but when using the bench scope, some early model Uni-T (2010), dual channel 10k/ch 1Gs/s, it was like night and day! Like all portable equip, these cumbersome toys have their place (yes I am being mean). Another place I worked as a programmer (long story), the electrical dept had the Fluke 6000 and asked for my help in using it, that is until one of the sparkys played with my bench scope at home - They immediately bought one (way niver than mine - bastards! :) for it's clarity and non-cumbersome ease of use. Look, even if the Mustool was not so toyish (i.e. cannot be fully trusted, with it's CRAP triggering), cumbersome controls and low res small screens which make them only useful for basic scope use, like simple diagnostic in a repair situation. Anything beyond that is WAY TOO CUMBERSOME for anything other than a real scope. I am being harsh, but that is the truth, just ask any design engineer, and most will agree. Likely a majority of repair guys too, as I did repairs at a small company to pay my way while studying at unii (elect engineering & computer science of course). Seriously, try and decent bench scope, especially analog (seriously, they are way more usable with ALL the control right there, but sadly lack the advantages of digital memory). Oh and regarding generators, many bench scopes offer those as well (and much better than the very limited Mustool one). Even an ultra cheap Hantek DSO2D10 (built in generator) craps all over the Mustool in both regards. But that is comparing apples with oranges, so... what I am saying is that just being portable hugely decreases usability, not to mention trust in what it shows because of compromises in the instrument design (circuit, channel memory, and display size).
I bought one to simply look at sine waves on portable gas and Propane generators. It should be perfect for that. The multimeter is a nice convenience since I have 5 other meters.
Also disagree. I use something similar on boats to monitor low speed data communications. Don't need millivolt scope sensitivity .. VOLTs are enough. Don't need MHz response, KHz is fine. Now carry two devices, this would shrink it to one.