I need a new oscilloscope - 300€?

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Dualflip

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Isn't that just a modern advanced version of "beam find"?:)

I still love my two Tek 2246 with readout and use them every day, digital scopes are very useful when I need to prepare measurements for articles, presentations, etc.
For new DIYers, I would recommend a better quality dual channel digital scope with a generator such as Keysight or R&S or similar (it's not a smartphone that you replace every year), and it's easier to publish problematic readouts on the forum and ask for help.;)
I know kids who do not know how to operate the time base and vertical scale, nor the trigger, etc... They just hit the auto set and hope everything works out.

Also, I do agree with you that Keysight makes great scopes, however, they are prohibitely expensive, even the simplest, which if I am not mistaken has a 70MHz BW, costs above the 1K range, one with a generator as you suggested is probably above 2K, which is very distant from a 350 USD Rigol
 
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moamps

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Dualflip

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Dualflip

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You can get it from alibaba for less than $100
Not long ago, when I used to teach at one of the world famous audio schools which shall remain unnamed, they had a UNI-T portable scope/multimeter which really made me end up hating portable scopes. They are a hassle to use, the screen is slow and the refreshing rate is also very slow, the resolution is bad, it didn't seem to be very accurate either, there are no knobs, only buttons which make it painful to adjust . Seems to me they are only good to check if there is a signal present or not

I am not saying your scope is like that, but judging from the screen size and the lack of any knobs, I already don't like it.
 

moamps

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Very nice, those must be part of a new product line tailored towards the amateur market, around 6 years ago when I was deciding on buying a new scope, I checked and they were definitely much more expensive. I guess I am compelled to buy one now :LOL:

It is an educational line of products, R&S has something similar, where you can get significant discounts for schools and students.
 

abbey road d enfer

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Interesting indeed.
However, I wonder what's the meaning of "Hardware bandwidth limits Approximately 20 MHz (selectable)", that seems to apply to all versions (page 12 of data sheet).
Also, what is standard secure erase? (Last page)
 

Dualflip

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Interesting indeed.
However, I wonder what's the meaning of "Hardware bandwidth limits Approximately 20 MHz (selectable)", that seems to apply to all versions (page 12 of data sheet).
Also, what is standard secure erase? (Last page)
I am speculating, but many scopes have a selectable function to limit the bandwidth to 20MHz to reduce noise, I guess that is what they mean.
 

Bo Deadly

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Also, what is standard secure erase? (Last page)
Solid state drives have a special hardware function called "secure erase" that resets every memory cell on the drive in such a way that it can actually recover factory write performance (although not normal cell wear). This might be what the datasheet refers to.
 

abbey road d enfer

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Not long ago, when I used to teach at one of the world famous audio schools which shall remain unnamed, they had a UNI-T portable scope/multimeter which really made me end up hating portable scopes. They are a hassle to use, the screen is slow and the refreshing rate is also very slow, the resolution is bad, it didn't seem to be very accurate either, there are no knobs, only buttons which make it painful to adjust . Seems to me they are only good to check if there is a signal present or not

I am not saying your scope is like that, but judging from the screen size and the lack of any knobs, I already don't like it.
But it IS what you say! I use it in conjunction with a small amp that drives a 5" speaker I salvaged from a portable keyboard and two car audio tweeters. My version of a signal tracer. The precision work is done by REW.
 

Dualflip

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But it IS what you say! I use it in conjunction with a small amp that drives a 5" speaker I salvaged from a portable keyboard and two car audio tweeters. My version of a signal tracer. The precision work is done by REW.
:ROFLMAO: Well, yes, I guess that if its used as a signal tracer, the portability makes it quite practical
 

Newmarket

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I am speculating, but many scopes have a selectable function to limit the bandwidth to 20MHz to reduce noise, I guess that is what they mean.

I agree. It's odd wording but makes sense given that it's often a scope function.
As an side, it always seems quite dificult to find out what the filter characteristic actually is.
Beyond the analogue front end you are into sampling rates and memory depth. It's relatively easy to hit the limits on those depending on timebase if you only think in "analogue" terms.
In my day to day work I don't see much of this problem but I am using scopes that cost £10000 (GBP) upwards so...
Meanwhile my "hobby" scope is an old Tek 2215 with at least one loose control. I should check if it's still okay actually as not used for a while.
 

iomegaman

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I recently bought one of the Uni-T DSO's( UTD2152CEX 150Mhz/1GS/s)

...impulse kind of buy after HOURS of reading online digital scopes and limitations and reviews and likes and dislikes...the price was the fatigue ending factor(~200)...obviously probably a reversed engineered chinese device I got on Jeffrey Bezos former garage site because I can return it etc...

It is indeed 8 bit and the manual is poorly translated to english...very poorly, so phrases like "secure erase" COULD mean something techy or they COULD be really bad translations for "delete"...I dunno...

It is kinda slow but I'm only using it for quick and dirty testing because the Tektronix analog scopes are heavy/hard to lug around...its a "lunchbox scope"...

I still have my trusty Tektronix 2413a.

I recently picked up a Tektronix D10/5A20N/5A18N/5B10N that I got for $30...put that together with the old BK Precision 3010 Function Generator and a Tronsons TSG_17 RF signal generator that was free with the Tektronix that I paid $30 for all of those and they make fiddling around with the DSLogic and Bitscope seem like hell on steroids...
The only good thing to come out of Face(not a real book)book is finding cheap old test/audio gear and tape recorders in the marketplace...its the only reason I go on there these days.


The Bitscope I got on ebay...its the ethernet connect version...only runs on Windows 7 which was the last good WinNT version as far as I'm concerned...problem is all of my laptops are Mac the last 5 years...my Windows 7 machine has some Lynx Audio cards in it and is a rack mounted beast of a machine I used to use as my primary DAW...

I never have been able to get the Bitscope to read any signal and since its the older version its kind of vapor-hardware...
But aren't we all?
 
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iomegaman

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I know what you mean, I had to use a Uni-T handheld scope a while ago, impossible....
I need a new digital...after about a full day of research I've decided on the Rigol MSO 5074...there's and entire 100 page thread on the EEV forum about hacking them and unlocking all the features, I tend to lean into products I can hack...it's twice what I wanted to pay but in the end I cannot see needing anything beyond its ability, after a certain level of frequency rate the issues are not scope-centric...just plop down the coin and stop reading/watching reviews.
 

Dualflip

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I need a new digital...after about a full day of research I've decided on the Rigol MSO 5074...there's and entire 100 page thread on the EEV forum about hacking them and unlocking all the features, I tend to lean into products I can hack...it's twice what I wanted to pay but in the end I cannot see needing anything beyond its ability, after a certain level of frequency rate the issues are not scope-centric...just plop down the coin and stop reading/watching reviews.
Yeah, those Rigol scopes are very hackable, I've been hearing Dave Jones about how to hack them for more than 10 years now. I bough a GW Instek scope, they are pretty much the same thing as the Rigol, decent Chinese stuff. Rigol is probably better, but the GW Instek scope has two built-in arbitrary function generators and a 0-1.5 GHz spectrum analyzer
 
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