Hi, Guys!
I compared signals from 10 to 70 MHz between my RTB2004 (70MHz model), RTB2004 (100MHz model) and checked also with my Lecroy Wavesurfer 422 (no such problems at all).
Please can you give me a clue, why the shown amplitude of (sinewave) signals at the R&S RTB2004 decreases at some frequencies and increases at higher frequencies and so on? Just going up and down depending on the frequency - but within the bandwith Limits.
This problem does not exist at my Lecroy 422, so this is not caused by the generator (IFR2025).
Please see the Pictures attached, where the Signal nearly vanishes at 45MHz (though it is the 100MHz Model). The Scope above is the 70MHz model, below the 100MHz model.
I'm asking by myself, what can I really measure then accurately with this scope - or is it just an expensive toy?
Thanks a lot in advance, Joseph