TA-0390: Zotek ZOYI ZT-703S Scope Multimeter 2ch 50 Mhz - Review
ฝัง
- เผยแพร่เมื่อ 2 ต.ค. 2024
- Testing the DMM, Scope, XY mode, Generator, Firmware upgrate.
Our official website for updating firmware: www.zotektools.com
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#zoyi #zotek #zt703s
In my head I bought a 46Mhz scope meter, and it’s remarkable for the money..
Yes 100% agree! thanks
I just got 703s, using to troubleshoot MACBOOK charging problem. Happy so far.
The 703s MENU has a "More APPs" selection; do you know of any that can be loaded? Maybe a 'mirror display to PC'? Because the device does have folders besides "Firmware". ZoTek has nothing I can find.
Thanks
That is prob. for future.
Impressive - I was expecting it to be double the price of the 10Mhz model, but it is just $10 or $20 more? I have only had my 702S for 5 minutes and it's now out of date! I like the larger screen and the image viewer for screenshots, and the signal generator is not bad. My one also has a stiff BNC so I am pleased they fixed that too. I'd love to see a teardown and see the PCB compared with the 10Mhz one. Also the current draw on the battery. 👍
I feel with you, have my 702s for 5 days.... : /
Thanks! , yes i think a teardown needs to be coming too.
I'm using the 702 S and I'm happy with it, thank you Tony for the info.
Thanks! Yes below 10 MHz the 702s is great too.
i regret buy this 703s, many youtuber recomended this device, scope not working well. autorange is useless, function generator is joke. multimeter is "okay" but i cant understand why they sacrifice the font size for useless bargraph. no temp and min max feature, usb is also only for copy picture, no datalog, its bad device, i think its not worth it, just another junk, honestly this can be a good meter if they make it open source, all the problem maybe can be fixed with good firmware. i have the latest firmware 1.39 when writing this comment, and its buggy
Hi, thank you for your comment, please realize you mostly get what you pay for, and getting firmware updates for a device in this price range is already exceptional and also you can not expect it to perform as good as devices 2 or more times the price, most youtubers take these points into account . i can only speak for my channel and i bought the device myself with my own money, i did my tests and i have shared that. you could have know about the generator and usb function, but you maybe watched other channels or skipped trough it quickly. i hope later firmware updates will fix some of the problems you have. i like the idea of them making it opensource, that would be great indeed, i hope they will.
@@salalkhairaat8156 You are totaly correct, it should indeed atleast work normal. if not contact the seller and try getting a refund.
That is also a good sign to the supplier something is wrong. i nowadays send it back if it is not good, sadly the last months it happens more and more, i hope AliExpress is not going to be the new BangUgood. Ali has been good the last years.
There seems to be quite a few problems but nobody has done a good break down. The battery management seems to be an after thought. Many have noted in various comments throughout the web. It seems like the charge light oscillates from dim to bright at full charge. That suggests it does not have a proper charge cut off and load sharing circuit. Pretty basic thing to include. Definitely don't leave this unit to charge and forget about it. I've seen one translated review that shows the rise time is no where near the stated spec. Pitiful. Nobody else seems to have looked into it.
Such half thought design doesn't matter as much for your random $10-$20 DMM but at $70-$80 equipment is not throwaway money. Maybe for the pro-electronics engineers who are used to a shelf full of $1000 scopes. They can say, 'eh whatever good enough for newbies playing with toy circuits'. But coming from the other side. This isn't really a very good recommendation. Better to save up some more for a bench top scope because one will eventually need to purchase thoroughly designed device that doesn't have a bunch of weird issues.
@@user-qo5mz6se4p Hi, yes you are correct, i can only speak for my channel, but this 20-40 minute video takes about 12 hours to make, with reseurch and testing recording and editing. Having family and a fulltime job, that is all the time i can spend on it, i try to be as fair as i can in that time and then move on the the next video. The charging i prob will never notice during that time, the risetime test i did btw. ,if i like a product and its very useful you will see me using them a lot in my other videos too. i have 2x the amount of equipment then you see on my desk, so when its on the desk i use it. This Zoyi is in my car for just in case.
@@TonyAlbus. Well said Sir, the amount of time and effort it takes to create a video presentation of this type is just not appreciated by most people. Great stuff.
Don't know why, I have 3 real oscilloscopes and a bunch of multimeters, but I had to have one of those. It's a toy for big boys but amazing they can build and deliver that for the $62 I paid.
Yes you need one :) welcome to the TEA club.
Well I already have the Owon 72, and the 702S.... So I might have to stop watching your channel! I can't afford so much progress. Hi Hi.
With all that money spent, you could have bought a proper scope like DHO800.
@@tech29X It still costs around 400€ for the 2 channel 70Mhz version. So... its a nice scope but not really cheap.
@@Stinktierchen $299 over here, but we pay far more through the nose for other essentials like healthcare insurance. So, I'd say 400EU still a bargain. ;-)
I was going for portability. I do have an old 100mHz HP CRO.@@tech29X
Sorry! :))
Thanks for the review Tony. I've ordered one of these from Alibaba and await its arrival with interest...
Thank you for your comment, yes they are very nice, i hope it arrives fast.
In fact there is no extra digit, one is in V range and the other one in mV :)
25000 and 10000 both 4.x. yes :))
Thank you for the review, Tony. It is amazing how many features they can cram into these devices. It looked to me like the upper frequency limit of the scope was a triggering issue rather than a bandwidth issue. As you said, the displayed amplitude did not drop significantly between 47 and 48 MHz. Are there any trigger modes other than auto? - if so it might be interesting to experiment with them. Regards, David
Thanks David!, yes i did think of that, but it was not just unsyncing, is was jumping like crazy too..
but indeed i need to try to be sure, i did not do that. yes good experiment for sure.
Thank you, excellent video. I got the 702S from Amazon and while researching for issues like counterfeit units, etc. I found out about the 703S and AliExpress was the only place that had them for sale. Can you back up firmware updates until the next firmware after problems are fixed. This is going to make my learning and using Arduino much more enjoyable retirement activity. Been in electronics since 1972, 10 years earlier if you count me taking apart anything electrical/electronics, my Dad did not enjoy that. I impersonated an electronics technician, engineering lab technician, computer support specialist and other duties at a Defense contractor for 25 years, all started with taking apart my Dad's kitchen alarm clock radio and fixing it. He noticed it mysteriously worked again. Same on the TV, I waited for him to go to work, I marked all the tunes positions, removed them, rode my bike to the tube tester at the Rexall Drug store, bought the needed tube that was bad. Just remember to put some dust or dirt on the new tube so your Dad doesn't notice. He knew I fixed the clock radio too but didn't like either. He was Mr. Cautious thinking I'd get electrocuted and take down the power station and be shamed by the neighbors. Thanks again.
Thank you sir! I have been searching for the beep in continuity mode from a few reviews now, and once you have a meter with the beep, you never want to go back to the dark ages! I like the 703, and I think that will be my purchase to replace my aged DVM in the garage :)
Thanks!
Nice one, thank you Tony. 👍 I got the DSO-3D12 just recently, also not bad for a little bench "all-in-1" tester, can not complain for £80.
Good to hear, yes they make nice stuff nowa days
شكرآ جزيلا لحضرتك استفدت كثيرا من حلقة A620 وقمت بشراءة خالص التحية للعرض الشيق للحلقة والامانة العلمية تلميذك
Thank you very much, thank you for watching and your comment.
I watched to see how crappy this was, and yes, you pointed out that the Owon hand-held oscilloscope was much better. The function generator is not good enough to add a BNC connector. Only 1x 16850 battery and the specs are not detailed fully like compareble test equipment. Maybe the price is good but better not to waste it if a little more get you a much better functioning and usable device. I might sound a little biased as I own an Owon HDS2202S. 3 BNC and more user-friendly operating experience. Thanks for showing us the Zoyi.
Yes the HDS is better and also more expensive, it may be not a surprize you get what you pay for.
Any "bang for the buck" recommendations? Thanks in advance.
@@pascalgehdudrauf5134 Yes this one.
does it catch short pulse at low frequency like Owon HDS242S? I did the test on:
th-cam.com/video/DpYIhF4npH8/w-d-xo.html
Not sure it can, that owon does it very well i see. its something i need to try. thanks!
Nice hungarian video! I understood NOTHING!!!
Merhaba. Aneng AOS02 kullanıyorum. Acaba zoyi zt-702s güncellemesini yüklesem sorun olurmu. Bunu deneyen varmı.
I have not heared from anyone that brave yet. maybe anyone can share?
Hi Tony, you didn't show the main thing for me. Whether or not this device will be able to show the sine wave of its generator with its oscilloscope, precisely while the frequency of the internal generator is changing.
To set up the resonant circuits, I need to look through the oscilloscope window, and at the same time change the frequency of the generator, all this must happen simultaneously.
It seemed to me that if it is possible to reduce the size of the generator window when the oscilloscope is turned on, I might try to check this.
Is this device suitable for this?
73! UR7CQ
Good point, i have read already it can not do that. also don't ecspect to much of the generator as mentioned in the video. for that the Owon from an earlyer video is much better, but also 3x the price.
@@TonyAlbus Thank you
Thank you very much for this prereview review.
Welcome and thank you for the comment
Is the 703s signal generator good enough to calibrate the probes at 1khz square wave? (Assuming based on the connector this is the main purpose.)
Yes correct, for that use its good enough
Tony Do you think the Owon HDS272 is better compared to the 703s? If so, how?
Hi, yes the Owon is better, its also a higher priceclass. i have the HDS272 myself and is very good. must be in one of my videos
The owon lacks precision and some other quirks. I returned mine and prefer this 703s personally
Very nice 👍. Subscribe. Ham radio good. 73!!!
Thank you! 73
No temperature reading on this one?... :(
i don't think so if i remeber correct, i think i mention something in the video
Interesting instrument😀
I think so too! Thank you
If you are probing 50 mhz, you probably aren't going to be using a $125 anything. I've been at this well over 40 years and with rare exception, there is no need to be measuring up there, especially at the hobbyist level. Anyone pro will likely have active probes which cost 10 times what this costs plugged into a scope that costs 100 times what this costs. If you are doing that kind of work, you aren't shopping for $125 meters.
Yes maybe correct, but when they claim 50 MHz i like to check if it can. in the end its not a bad scope especialy for the price
Looks good...
Thanks Bill, yes not bad at all.
Looks like a nice scope 😊😊
Thanks!
Thanks Tony.
Welcome John!
Thanks for your
Thank you!
Hey Tony! Bedankt voor de review. Misschien als ik in een gekke bui ben koop ik deze er ook nog wel bij. Weet je of ik voor de 702 nog mijn firmware kan upgraden zodat ie ook de mode vasthoudt na uitschakelen?
Thanks, ja je kan hier je firmware downloaden, in het laatste stukje video kan je ook zoen hoe, ook voor die van jou
Our official website for updating firmware: www.zotektools.com
@@TonyAlbus Succes! Nu 1.03.58 (pas na 5e keer proberen) en Mode blijft staan.
@@MarcelHuguenin Yeah!! perfect!
You should donate more money to Ukraine otherwise you are a very very very bad human being. And of course we dont want that.
Thanks for your help and I
It's my pleasure
Hi,I've been watching your content for a while and i wanna thank you for your valuable content. I have a question that I hope you can answer. We were asked to create a project that consists of a transmitter and receiver that works on the 5G network system. I will be grateful if I could contact you to inquire about some matters.
Thank you so much! Sorry to say i have no time for projects, i have a fulltime job and this is in my free time.
Also i am not familliar with 5G other than my phone is using it.
i appriciate you asking me sir!.
the zeeweii dso2512G is definitely better as an oscilloscope for ~$70...80, ADC 250Ms versus 110-120 for this ZT-703s
Prices clearly deffer per region. i pay 80 for the ZT703s and 100 for the DSO2512G , and it has no multimeter.
@@TonyAlbusdso2512g have the scope, but zt-703 have 1/2 scope 😅
Who is the better zoyi zt703s or fnirsi 2c23t ?
The Fnishi is 10 MHz 50 Ms/s ... Zoyi 703s 50 MHz 280 Ms/s.. but i do not have this 2c23T .. i had once a FNISHI and that was my last, never again.
@@TonyAlbus so the zt703s is better than fnirsi
@@هيانرتقي-ل1س Yes i would think so
@@TonyAlbus FNISHI (FINISHI), deliberate mistype? 😉
@@adamdavies163 Its just a terrible name to pronaunce and to write and i am a dislectic on top of that :)
О, Галустян ! 🙃
Thanks!
😮😊🙏🏻👍🏻👍🏻👍🏻👍🏻👍🏻
Thank you!
👍
Thank you!