Kirkhaan

Aha, fair enough. I never observed that before with other bench-top scopes. Probably because the models I worked with have bandwidth >400MHz.

Question to the experts: I observe a signal distortion on my brand new ADP3450 when using AC coupling. In attached screenshot I tried to capture this. Both channel 2 and 4 have the same 1kHz, 500mVpp square wave feed. In this example it is coming from an Agilent 33250A, but the observation is exactly the same when fed from the wave generator on the ADP3450. Channel 1 and 2 show identical behavior. Exchanging the BNC cables does not make a difference. When using one of the voltage probes that were included with the ADP3450, it also shows when the probe is set to 1:1. When the probe is set to 1:10 attenuation (so 9MΩ impedance), it is not shown anymore, so then the square wave is flat on top and bottom and exactly matches the signal shape that we see with DC coupling. What are we looking at here? Is the 50Ω output of the signal generator somehow too much load for the ADP3450 inputs when using AC coupling???

I've found one. Not searching anymore. Looking to buy an ADP3450. Please let me know in case you have one available or know of a good deal. Thanks!

Thanks @attila, I am going to play with it!

Hi forum members, I am using an AD2 with a passive 1:10 voltage probe that has the following transfer function: So as can been seen, its 1:10 attenuation drops over frequency. Is there a way to compensate for this in using custom probe settings? In WaveForms I only found Linear, Table and Custom tabs, which seem to be only voltage related. So no dynamic attenuation possible over frequency.