There are artifacts when using digital scopes and even analog scopes. In analog scopes there could be a difference in chopped mode and the other mode.
Chopped measures channel 1 for a bit and then switches to 2. In the other mode, a full sweep is made for channel 1 and then another for channel 2.
You have to realize what those artifacts are and how the scope can compensate, One of those artifacts is sampling rate and A/D type and resolution.
There are also measuring errors, just because how you are probing.
All I can say is, use the right or least expensive tool for the job especially if the right tool is available.
There was a really simple CAT 5 cable tester on the market which I can't find anymore. In any event, it was able to read green for a straight thru cable and red for a crossed cable, but really couldn't tell you other wiring errors, but it is GREAT for finding intermittent cables. Wiggle the cable when plugged into the tester and the light goes out. it's not a wire mapper and it's not a TDR. It was sort of a continuity and/or is it a cross/straight thru cable.
What about an ohmmeter?
Chopped measures channel 1 for a bit and then switches to 2. In the other mode, a full sweep is made for channel 1 and then another for channel 2.
You have to realize what those artifacts are and how the scope can compensate, One of those artifacts is sampling rate and A/D type and resolution.
There are also measuring errors, just because how you are probing.
All I can say is, use the right or least expensive tool for the job especially if the right tool is available.
There was a really simple CAT 5 cable tester on the market which I can't find anymore. In any event, it was able to read green for a straight thru cable and red for a crossed cable, but really couldn't tell you other wiring errors, but it is GREAT for finding intermittent cables. Wiggle the cable when plugged into the tester and the light goes out. it's not a wire mapper and it's not a TDR. It was sort of a continuity and/or is it a cross/straight thru cable.
What about an ohmmeter?