I discovered an "funny" thing today.
I had used a GW instek probe GTP-150B-4 150Mhz in 10x mode and documented the result.
Today I noticed in the testing department that what I've measured doesn't correspond entirely to what they see. The pic below is what I got with the GW-probe, where the red lines is what the peaks are with the probe they use, which is a Tektronic P3010 100MHz 10X.
I tested the exact same probe on my own scope which is the same model and I got the same result. Firstly I thought it might would have something to do with the input capacitance, but according to the datasheets they have the same nominal input capacitance.
Before I tested I also ran the probe against the scope's calibration signal.
Any more ideas what this may depend on?
In the pic below the same settings is used, just different probes. As can be seen the high frequency spikes is a lot higher with the the tek-P3010 probe. I've yet not found an logical explanation.