O Scope Options
- Thread starter Cutaway
- Start date
Justin Zazzi
Wave Shepherd - aka Jazzi
We have one of these at the shop and it's really nice. Maybe too nice for a non-professional. I certainly wouldn't buy one for myself. Actually, I'm not sure why I'm suggesting it. It does come with a full set of DMM stuff though too so that's good.
https://www.testproductsintl.com/digital-multimeters-dmms/440-true-rms-digital-multimeter/
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https://www.testproductsintl.com/digital-multimeters-dmms/440-true-rms-digital-multimeter/
View attachment 11087
Copied and pasted from the other thread.
I've got the 1.0 version of this
https://m.liumytools.com/LIUMY-Osci...rent-Test-HD-Display-with-Backlight-p-28.html
It's not good for much other than detecting clipping and basic multimeter functions, but I didn't expect any more than that.
Thank you both, those are great options but i think this one is more reasonably priced for my needs
I also have the Liumy (2nd version, which honestly, isn't quite as good as the first version, from what I've heard). I believe the screen resolution is a little lower with the 2nd version, so it makes it a little harder to interpret an ever-so-slightly clipped signal from a clean signal - but you can still tell.
Besides the o-scope function, it also makes a good general-purpose multimeter (the 2nd version does have some improvements in the backlighting and display, other than resolution).
Which one are you looking at (didn't see a link or pic when you mentioned the "this one" in the post above)?
https://m.liumytools.com/LIUMY-Osci...rent-Test-HD-Display-with-Backlight-p-28.html
I was referring to the one that @ckirocz28 had posted...
@Ge0 - I was just wondering about these this morning on the drive into work. I wasnt sure if USB versions where a thing and if they were, are they reliable...
All of the feedback has been great, thank you
We have several Pico Scopes in my department. They have been very reliable. When my personal Tektronix hand held dies this is what I intend to use at home.
Ge0
One of these guys, had it for something like a decade and it's still going strong.
https://www.parts-express.com/velleman-10-mhz-handheld-oscilloscope--320-290
It's only a single channel, which is fine for most things, but there are times I'd love to overlay signals. For the price though, no complaints. I think I paid $250 and that was unheard of for an O scope back then. I think this is now under $200 and there's a bunch of other handhelds.
Sent from my LM-G710 using Tapatalk
https://www.parts-express.com/velleman-10-mhz-handheld-oscilloscope--320-290
It's only a single channel, which is fine for most things, but there are times I'd love to overlay signals. For the price though, no complaints. I think I paid $250 and that was unheard of for an O scope back then. I think this is now under $200 and there's a bunch of other handhelds.
Sent from my LM-G710 using Tapatalk
Just remember you don't need a high bandwidth scope for audio. You can get by with the cheaper options. Anything over 100MHz is overkill.
My little handheld single-channel Velleman.
I still love it because back then, I'd have never justified spending $1500 on a real Oscilloscope. $250 was like a "holy shit!" opportunity to jump on before they figured out they should charge more. Still can't believe it's even cheaper today.
Is that pico a dual channel? I wouldn't mind a dual-channel option, but honesty my Velleman has been good for what I do- I'm (sadly) not internally scoping amp guts.
I actually was starting to look for one that also did all the DMM stuff too, but definitely want one with a continuity buzzer... my current DMM is just "OK", I'd pick up an upgrade if there was this rad added feature... like an O-Scope.
My little handheld single-channel Velleman.
I still love it because back then, I'd have never justified spending $1500 on a real Oscilloscope. $250 was like a "holy shit!" opportunity to jump on before they figured out they should charge more. Still can't believe it's even cheaper today.
Is that pico a dual channel? I wouldn't mind a dual-channel option, but honesty my Velleman has been good for what I do- I'm (sadly) not internally scoping amp guts.
I actually was starting to look for one that also did all the DMM stuff too, but definitely want one with a continuity buzzer... my current DMM is just "OK", I'd pick up an upgrade if there was this rad added feature... like an O-Scope.
I stand behind Pico Scopes because they work well for me and my team in an industrial environment. Your handheld is convenient but you are killing yourself on the display. A 2 channel Pico Scope for $115 blows it out of the water. Why pay for a display when your laptop already has a pretty good one? You can buy Pico Scopes from anywhere from $100 to $1000. It all depends on your needs. If you are just measuring audio signals then the 10MHz cheapo 2 channel model is perfect for you.
I need to measure power supply and amp output switching frequencies. i spec a device that has 100x bandwidth and maybe 4 channels. Anyone here that does not need to operate on amps does not need this. So save yourself some money and enjoy the love.
At work I have one or two scopes that can sample a 5GHz over 4 channels and decode comm buss signals like Flex-RaY, MOST, CAN, and LIN. These cost $20k each. A hobbyist does not need to spend this type of money anymore.
Ge0
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Just wanted to say thank you for the suggestion, I ordered a pico and decided to also get a SMD DD-1+... Even thought the PICO will easily show me a clipped signal (along with other cool functions) i would still like to know when distortion (at least up to 1%) is present at which device is throwing it.
Good choice. I know some folks like to judge clipping by watching a sine wave distort on a scope. But, by the time you see distortion you are well into the 10% and above range.
Ge0
Ok, so trying to understand here & forgetting their cost for the moment, with the SMD DD1 or DD1+, do you really even need the scope based on your comment about distortion already being high by the time you see the clipped signals?
Besides setting gains, any other real or common benefit to using a scope in car audio?
Check voltage levels. Look for noise. See if your amp is clipping. Look at pretty sign waves. Etc...
Ge0