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using 100 mhz probes on 200 mhz scope any issues.
chinoy:
So I figured out how to do the upgrade via firmware for my Hantek scope.
But the one thing holding me back is my probes are marked 100 Mhz.
What are the implications of upgrading my scope but not my probes.
What is the key diff between a 100 Mhz scope probe and a 200 Mhz scope probe.
Any inputs much appreciated.
Antonio90:
The total system bandwith will be limited by the weakest link.
A 200MHz scope with 100MHz probes will have approx. 100MHz bandwith.
You can always get 200MHz probes later down the line if you need them.
tggzzz:
--- Quote from: chinoy on October 19, 2023, 03:27:59 pm ---So I figured out how to do the upgrade via firmware for my Hantek scope.
But the one thing holding me back is my probes are marked 100 Mhz.
What are the implications of upgrading my scope but not my probes.
What is the key diff between a 100 Mhz scope probe and a 200 Mhz scope probe.
Any inputs much appreciated.
--- End quote ---
100MHz *10 10Mohm "high" impedance probes on a 200MHz scope will result in a system bandwith of 100MHz, give or take.
With a probe tip capacitance of (say) 15pF, the load on your circuit will be ~100ohms at 100MHz and ~50ohms at 200MHz - i.e. nowhere near 10Mohms.
KungFuJosh:
Passive probes tend to perform well above their rated limit, unless they're junk.
TimFox:
A common question on this site is "What will this object do in a range of operation outside the manufacturer's specification?"
In general, many useful units will function at frequency or power reasonably outside the specification range, but the user must measure his own units to find out.
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