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- Опубліковано 20 січ 2015
- This video is a response to a forum question that asks if the RP2200 150MHz probe supplied with the DS1054Z is degrading the performance of the scope compared with the 350MHz RP3300 supplied with the DS2000.
Are there any performance differences between the two probes on a 100MHz bandwidth DS1054Z?
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Forum: www.eevblog.com/forum/blog/eev...
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Dave, I love your longer videos, Why do you always want to keep them short for our sake? The more you blabber, the more I pickup and learn!
Question is about the rise time of the function generator source. If the rise time of the source is limited (which I see in the AWG datasheet as 8ns) then of course the performance of the two probes will be identical - they have 2.3ns and 0.9ns respectively. You have to test them with rise time that is close to the rise time of the scope (which is 3.5ns) in order to see a difference.
The test with 8ns rise time pulse under these conditions is meaningless.
EEVblog I just want to make a humble request if you can make a series of Basic or Fundamental electronics lesson for a beginner like me? I missed your Fundamentals Friday video. I always watch the video you have uploaded even though I don't understand them because it is so advanced for me and the others out there. You have a lot of viewers,many of them have an advanced knowledge while some are just beginner like me. Please consider also our level to your video contents and not always to the advanced viewers out there. :) Thank you.
This is actually a good show format for learning... you get the best of both Dave's EE experience and rant enthusiasm
So you used a 150 MHz BW and a 300 MHz BW probe with a 1 GHz BW scope without the input LP enabled and saw no difference in the step response. That means one of two things: both probes have the same actual bandwidth (which is entirely possible they are just marketing one as worse than it actually is) OR your test signal doesn't actually contain any high enough frequency components to make your test valid.
My thought too re: test signal might not contain harmonics at the frequency. Seems a much simpler test would have been a 100 MHz sine, then measure amplitude.
I agree. Pretty useless experiment. am sure he has a better step signal somewhere, if nothing else he could have hunted one down with that 1GHz scope and then do the comparisons.
Although i have no actual idea what you're talking about, i still find these videos intriguing xD
6 years later and this model is still popular and probably the best bang for the buck.
You get all the features now without hacking except 100Mhz
Thanks Dave.
Good video Dave 👍👍 I love Rigol 😋
Good informative video...Thanks!
Good video thanks
I think Dave was trying to assure everyone that the Rigol probes are good. No problem. I think the comparison test was a waste of my time, in that Dave could have EASILY measured the Risetime of each probe on each scope. Dave was being qualitative -- I would have done risetime measurements
My DS2072A came with RP3300, but they are a fixed X10 with the short ground lead so they have definitely changed the probes over the years.
you could have compared with the waveform when using just a 50R cable from the generator and termination at the scope, to see the best case
MichaelKingsfordGray
_termination at the scope_ if the scope doesn't have 50R termination use a feed-through terminator
You can actually use the REF function to compare signals. Very handy for stuff like that. :) I also would have liked to see a comparison with a super-duper Tek probe.
Yep, was just going to post the same comment. The ref function comes in handy :)
Hi Dave, I'll try again: I'd appreciate it if you could do a video (or more ;)) about spectrum analysators. Explain RBW, VBW, zero span, a few words about dB/dBm/dBµV.. and terminology like that and how to generally use those (expensive) devices. Cheers.
Its time you do a probe shootout out video.
Dave, do a tear-down of a passive and active oscilloscope probe please. You always do tear-down of oscilloscopes, but never voltage or current probe.
Teardowns of probes are often destructive. Nobody wants to ruin a 2k fet probe.
Dave - I think that the system BW formula you used assumes a particular probe and scope transfer function - I think 1st order.
+EEVblog so how often do you recommend to check compensation?
I received RP3300 probes with my DS1054Z. The probe needed adjusting in the usual fashion.
Rigol seems to have changed the probes on the DS1054Z because mine (which arrived a couple of days ago) are completely different .... slightly different BNC connector ..... The X10 switch is recessed and works in the opposite direction, up is x10 and down is X1 and the cable is apparently a different length. ..... Also the flared end of the hook adapter is slightly larger in diameter. I found this out printing a scope probe case from Thingiverse and nothing fit right.
You may need to retest to verify they are just as good
You own so many high end oscilloscopes and I cant even aford a crapy one...thats life..
If you spend hundreds of hours making quality videos and post them on youtube then people will send you some to use or demo for free but it may be a lot less work just to save up and buy a 1054z
EEVblog Have you quit shooting fundamental friday's? I haven't seen one in long time I think.
Good video Dave. What do you reckon is the cause for the difference in the signal the poster observed? maybe the "antenna ground lead"?
Andy Plater I'm at a loss to explain apart from probing differences. Seems he still thinks there is a difference.
maybe his probe is a little bit dogy
666Tomato666 Good to have Dave here to debunk someone's fiddly numbers on a dozen scopes
Maybe his probe has a compensation problem?
EEVblog The rise-time of your signal generator is only spec'd as
dave you shoud sweep and get bandwidth.....
This ringing cannot be compensated at the probe. You compensate the probe as ussual, with 1Khz zoomed out and the zoom deep in and see all the overshoot thing. Curious ir this can be eliminated by fine-tunning the probe (tunning it even more). Great vid.
My DS2072 came with the 3300A probes. They're far nicer than the 3300 you've shown. Maybe some units are shipping with different probes?
EEVblog becomes more and more a review channel for (Rigol) oscilloscopes. Don't you have any other topics for us?
A man with one oscilloscope can look at his signal. A man with 4 oscilloscopes is never sure what is signal really looks like.
New to this scene but I picked up a Rigol DS1054Z (100MHz Mod) and it came with PVP2150 probes. Well I am taking a semiconductor course and I am here at home working on a self biasing transistor circuit. Well hooked up my scope and PVP2150 leads to get a Vin/Vout Sine-wave. Had my Signal Generator set for .03V at 1kHz. Well the sine-wave on the screen was all over the place. Could not even read it, it was so jittery. So I hooked directly from generator to scope with a direct BNC to BNC cable. No jitters at all. SO I am thinking, could it be the probes. So I picked a set of RioRand P6100 for Semiconductor Lab, they don't supply you with leads on their scopes. So, hooked up the RioRand P6100 on the Rigol DS1054Z scope and no jitter. They work great. So make me think are the new probes their supplying crap!?
Could you point me in the direction of one of those probe-to-BNC adapters please? Thanks.
+FrontSideBus Yes where do you source those? It looks like you have a 50 ohm inline terminator connected to a Agilent HP Keysight 5063-2143 Probe Tip to BNC Adapter ?
Hey Dave, I watched one of your previous videos on how to set up an electronics workbench. Do you still recommend the Rigol DS1052E? or another oscope?
EEVblog
Ashley Jeudy Perhaps you've missed my half dozen videos on the DS1054Z? Only a fool would buy the 1052E now.
EEVblog Thanks. I have missed a ton of videos. I just recently started watching regularly
+Ashley Jeudy (Ash J) Harsh reply, I think!
I have a question. I am buying rigol ds 1054z but my house does not have earthin leads in plugs (very old house) will this affect my mesurments or am I just in danger of shocking my self? I would like to see Dave doing a test of this if it is possible. Thanks for the answer in advance :)
+DangerDestiny Shouldn't affect the measurement. You really should have an electrician install earthing leads to prevent electrocution to yourself.
Not many scopes seem to give the full control over the bandwidth 8:57 or are there another option that makes you ask for the bandwidth value you want.
On my unit from Micsig.. I got the normal full BW and the 20Mhz and then high and low pass where I can set the bandwidth as I want on all the 4 channels... and do like that as it gives me good control over the noise... you got full control from 30KHz as I recall and up.
i.imgur.com/6T4hTjM.jpg
i.imgur.com/OCCntmw.jpg
find that quite useful for many of these el-cheapo AC/DC current clamps when you have the scope in amp mode and where some of them have a lot of noise when you're down in lower DC current levels..
Gone bananas in these cheap AC/DC current clamps.i.imgur.com/tJj8QTA.jpg 14USD, 27USD, 35USD, 48USD
i.imgur.com/Bcz1C3w.jpg
Dave Look at the new rp3300a probes I bought an mso2102a and it came with them. Pure crap if you ask me they wont even compensate Ive bought ebay probes before that perform better. At least their customer support is willing to send me some new ones. Anyway love the videos
Hi Dave. Not sure how much this matters, but I noticed that the scopes you'd tested with were set for 1x. I believe this was consistent across all the scopes used, however.
Other than that, great video.
What in the hell, do you actually use all those Oscilloscopes for? I work in the audio work and hardly ever use them, unless a signal generator is really screwed up.
Dear Dave, please switch the topic off from Oscilloscopes to some tutorial type of videos. We've had enough Rigols for now. Thanks
+1 agreed
I never get tired of watching him play with scopes.
Robert Calk Jr.
Dear Robert,
I understand you, me as well, but Electronics field is so wide, thus he can cover thousands of more other topics, rather than scopes.
Yeah, tutorials would be great.
Gordon Freeman Why not give us a good idea of a new scope and if it is worth the upgrade, instead of things he could do any time?
Funny, technicians seen to spend more time adjusting and dealing with problems with their oscilloscopes than whatever project they're working on. Thankfully multieters are not often such a pain in the butt.
If you have any Rigol scopes to give away to a student then I might know someone...
Careful Watts, I might drag out the ole, fighting over a penny, invention of wire joke...
;)
Bench is coming along nicely bud, you'll get there :)
LOL Yago. Money's a problem at my age but hopefully I'll have a nice DSO sitting alongside my great analogue scope in a few years (if there's room)!
I have no idea what I'm watching
ffs another scope video. i got lost after the first 2
10:57
What does the noise says? Bluhblublublub
I have a BSEE, and I don't think you know what you're talking about.
34 others didn't either.
2nd comment
Bottom line:
Both cheap Chinese probes, for making cheap Chinese products.
God that GWinstek is an ugly ugly scope.
Yeah. My Tek 2465A DV is a beautiful scope! And the DMM built into it is as good or better than my Fluke 87V. My Fluke has more features though.