MUSTOOL MDS9208 Multimeter/Oscilloscope/Signal Generator Review/Teardown

Поділитися
Вставка
  • Опубліковано 23 гру 2024

КОМЕНТАРІ • 37

  • @TRONMAGNUM2099
    @TRONMAGNUM2099 Рік тому +9

    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.

  • @DavidDay-n1v
    @DavidDay-n1v Рік тому +3

    Thanks, Kerry. As always, excellent review.

    • @DavidDay-n1v
      @DavidDay-n1v Рік тому

      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.

  • @yellow_panther
    @yellow_panther 9 місяців тому +1

    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.

  • @tomperli4513
    @tomperli4513 9 днів тому

    Hi Kerry, thanks for the review !
    I think often overlooked is the gain of security you get, when work with an symmetrical 4 mm "banana" input instead of a BNC - Oszilloscope input in high voltage applications ( exmpl : VFDs ).
    Ok , possible to use a good BNC high voltage probe ( nearly the prize of this Meter😉) but whenever I can , I cover my bench scope from high voltage applications, which are normaly no "multimegahertz" scenarios.
    The only thing I dont like is the SMD-Fuse . But for current, I go for a dedicated Amperemeter.
    Greets !

  • @harunlisic
    @harunlisic 12 днів тому +1

    I bought a brand new one from Banggood, and maybe 1 month later i started experiencing the Issues which I don’t know how to solve. So the issue is, sometimes, for example when i move the dial to continuity test it beeps even if nothing is connected, and at that time even when i move dial to volt meter doesn’t give any accurate data, it shows something but not accurate, and when i slightly hit the multimeter, or press it near the display it starts to work properly again, any suggestions what it might be? Thanks

  • @ZombieLincoln666
    @ZombieLincoln666 10 місяців тому +1

    I wish there were more usb scopes for iOS (iPhone or iPad). No need to waste money on a screen and buttons.

  • @watchmakerful
    @watchmakerful Рік тому +3

    ZT702 with its 4-way button panel has more intuitive scope controls.

  • @juancarlossandoval5628
    @juancarlossandoval5628 Рік тому +2

    Love the review

  • @DemiGod3
    @DemiGod3 2 місяці тому

    At 13:37 is the cap 22pf getting 14pf is that in the "ballpark"?

    • @KerryWongBlog
      @KerryWongBlog  2 місяці тому

      Measuring small capacitance can be tricky using multimeters with long leads due to the stray capacitance of the leads even if the display had been adjusted relative to the stray readings before.

  • @watchmakerful
    @watchmakerful Рік тому +1

    50 mV/div? Are there any portable scopes that can at least 1 mV/div?

  • @yellow_panther
    @yellow_panther 9 місяців тому

    Excellent review and tutorial. Thx!

  • @yellowjacket3164
    @yellowjacket3164 Рік тому +1

    Thanks Great review! Question can use scope mode in mA/A range? MD8208 is can.

    • @tomperli4513
      @tomperli4513 9 днів тому

      No unfortunely not . That was my first check. Owon HDS120 has the ability ( but sucks in other terms😅).

  • @G-P_H-T
    @G-P_H-T Рік тому +3

    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))

    • @smling11
      @smling11 Рік тому

      Agreed. 10mV resolution shall be better.

  • @R-K0534
    @R-K0534 Рік тому

    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?🙏😢

  • @filipbelosevic9722
    @filipbelosevic9722 11 місяців тому

    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!

  • @dankoandrijanic2858
    @dankoandrijanic2858 Рік тому +1

    How much you fill these reviews

  • @andymouse
    @andymouse Рік тому +1

    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.

  • @4272005
    @4272005 Рік тому

    The common socket looks a bit damaged was this from new?

    • @KerryWongBlog
      @KerryWongBlog  Рік тому

      I didn't notice it from the high res photos.

  • @FirstEditionWindward
    @FirstEditionWindward 8 місяців тому

    One REALLY annoying glitch is that it does not have leading zero suppression! 86.2 is much more readable than 086.2

  • @jstro-hobbytech
    @jstro-hobbytech Рік тому +2

    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.

    • @KerryWongBlog
      @KerryWongBlog  Рік тому +5

      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.

    • @jstro-hobbytech
      @jstro-hobbytech Рік тому

      @KerryWongBlog cool. Thank you. I'm a quick learner but there's so many topics in this field.

    • @lordgarak
      @lordgarak Рік тому +2

      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

  • @watchmakerful
    @watchmakerful Рік тому

    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.

    • @KerryWongBlog
      @KerryWongBlog  Рік тому

      The ADC (MS9280) is capable of 50 MSPS, now whether or not they are using its full potential is a different story.

    • @watchmakerful
      @watchmakerful Рік тому

      @@KerryWongBlog Check the maximum frequency that is displayed correctly. Is it around 12.5 MHz?

  • @ciocrazvan9388
    @ciocrazvan9388 Рік тому

    SMD fuses and shunt? Say no more...

  • @stevenbliss989
    @stevenbliss989 Рік тому

    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!!!!!!!!!!!!!!!!!!!!

    • @ElectronBuilder
      @ElectronBuilder Рік тому +1

      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.

    • @stevenbliss989
      @stevenbliss989 Рік тому

      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).

    • @yellow_panther
      @yellow_panther 9 місяців тому

      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.

    • @FirstEditionWindward
      @FirstEditionWindward 8 місяців тому +1

      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.