Performa01,
I don't see the point of arguing further. I fail to see that you have contributed anything substantially useful to this discussion since my first post about wanting higher MHz rated passive probes with any scope BW upgrade. I stand by what I've said. Specifically...
Including 200MHz probes with a 200MHz scope will OF COURSE allow measurements at 200MHz, but it would be BETTER if the probes were rated higher than the BW of the scope. Therefore, if one seeks to purchase a 200MHz Siglent 2000X Plus with 200MHz rated passive probes solely because of the free BW upgrade, if you get an scope-only BW upgrade to 300MHz or 350MHz WITHOUT any probe upgrade, it's even less of a desirable situation than the stock 200MHz scope with the 200MHz passive probes. Will using 200MHz probes on a 350MHz scope make measurements impossible? No! Of course, not. But if you had the choice of 200MHz probes or 500MHz probes with a 200MHz or 350MHz scope, which would you choose? No doubt the higher 500MHz rated probes, assuming they are quality probes.
And is all I was trying to say.
But then you chimed earlier in with all manner of arguing that in no way whatsoever nullified the truthfulness and accuracy of what I said. Actually, you took out the verbal sledgehammer and started talk about my having spread MISINFORMATION. That was taking it a bit too far.
Again, I am ONLY talking casually about slightly better probes in light of a scope BW upgrade. I am not teaching a master class on the topic, nor do I feel such a master class is really necessary.
On some level I'm quite sorry I said anything at all about wanting better probes (in terms of their MHz rating) because my comment directly led to this back-and-forth that does not directly pertain to the thread topic of the Siglent 2000X Plus series scopes.
https://youtu.be/7-Yr1nQ3dFI
All I can say that you should have read info on a link Performa included.
While passive probes have BW specification, in real life, your BW is going to be
dominated by input capacitance. Period. Because physics.
If you look at some passive 500MHz probes, you will see that they will have slightly lower capacitance. That is going to be the difference.
If you take a 100MHz 200MHz and 350MHz probes with same input capacitance, performance will pretty much be exactly the same.
If you want better frequency BW but cannot go active probe route, a 50Ω 10x probe will give much better performance. Literally 450Ω resistor at the end of coax will be much less loading on a circuit and better signal fidelity than 350 USD Hi impedance
active passive probe.
Hence, I don't recommend people to give 4x 350 USD for 500MHz 10x passive probes. It is literally waste of money. Get 100-200MHz probes with good quality and get the rest of the money together and get an active probe.
Biggest reason for buying 500MHz probes will be that they might be better quality, smaller, have better accessories and better ergonomy.
Master class about probing is always necessary. Most expensive scope and bad probing will give crap results guaranteed. If you understand probing you can get much better results with a 200Mhz scope than with a 1 GHz scope with bad probing while looking at 200 MHz signal.....
EDIT: Typo. Thanks swmcl