Cheap Pocket Oscilloscope (RE: EEVblog #1260 - $70 100MHz Oscilloscope?) - Page 1
Forum section: electronics / testgear

author: Bulliteshot
author_rank: Newbie
timestamp: November 11, 2019, 12:55:37 pm
content: Hi,I was very interested in this scope but seeing all the issues that exist with it's logic, it's probably not a good idea to use it as a primary scope.I understand very little about scopes but want to mess around with them a little to get started.Does anyone know any of these cheap meters that is actually decent?Thanks

author: rvalente
author_rank: Frequent Contributor
timestamp: November 11, 2019, 07:18:29 pm
content: For all ive seen of these little devices, just downgrade the manufacturer specs, if its stated as 100 MHz, assumes its 20 MHz. Sometimes they claim bigger numbers as marketing but wont deliver it.

author: Fungus
author_rank: Super Contributor
timestamp: November 11, 2019, 08:15:09 pm
content: Quote from: Bulliteshot on November 11, 2019, 12:55:37 pm"DSO Quad" functionality is quite good but:a) The user interface is very fiddly (everything done with just a few buttons)b) Bandwidth is only about 10Mhzc) Not really any sort of zoom featuresStill: It's a great tool to have if you're just messing around with Arduinos and stuff. The size isawesomeand the difference between owning an oscilloscope and not owning an oscilloscope is night/day.https://www.ebay.com/sch/i.html?_nkw=dso213Edit: I'm, not sure what firmware those eBay models are shipped with but it's open hardware so there's some good alternative firmwares out there.

author: Bulliteshot
author_rank: Newbie
timestamp: November 12, 2019, 01:55:10 am
content: Thanks. Someone on youtube also suggested OWON VDS1022I. I kinda prefer the idea of having it's own screen though, and I can't blow the ass out my PC

author: aix
author_rank: Regular Contributor
timestamp: November 12, 2019, 07:29:50 am
content: I have a JDS2023. Nothing extravagant (stated bandwidth 20 MHz) and a few years old (so there could well be something newer and shinier out there), but do I occasionally find it useful.http://www.jinhandz.cn/en/index.php?id=6Don't remember how much I paid for it.

author: Fungus
author_rank: Super Contributor
timestamp: November 12, 2019, 02:53:50 pm
content: If my DSO QUad ever breaks I'll definitely get another one.It's just soooo useful having a 'scope that's tiny+portable (and battery powered!)

author: excitedbox
author_rank: Regular Contributor
timestamp: December 01, 2019, 01:00:01 am
content: There are a few handheld options from Hantek that are around that price range and their specs are usually not as exaggerated as the shady no name suppliers. Also for 140 the 70mhz version comes with logic analyzer and signal generator. The basic version is 80 euros for 40mhz and 100 for 70mhzSomeone mentioned the Owon USB scope which may be an option if you don´t care about having to use the PC and have a little over 100 laying around. Their $100 model has an Isolated USB so less risk of blowing up your PC. Also I have heard most apple mac book pros have isolated USB ports which protect the computer.You can also buy a isolated USB adapter for $7-20 and protect your PC. There is one at the link below for $11 that protects up to 3kv. Not a bad idea to have one on hand before plugging any diy electronics into your pc. Then you can also use a cheap hantek or instrustar scope without worrying about the safety of your laptop.https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2546172.m570.l1313.TR10.TRC0.A0.H0.Xisolated+usb.TRS0&_nkw=isolated+usb&_sacat=0I was just thinking it might be a fun project to take a cheap chinese tablet and USB scope and build a 10" linux desktop scope. If you spend 220 on a scope and 120 on the tablet plus 10-15 n the usb isolator you are still under 350 and have a 1Gsa/s 250mhz MDO with 10" screen much like the expensive lacroy.