I just acquired an N2796A from the used market, in like new condition. It passes calibration (DSOX 3000T) and 1-2GHz response looks good on another scope (54846A). The attached image however (magenta) shows a significant compensation problem (other scope shows the same). The signal in this case is a 65kHz square wave. The yellow trace is a different probe on same waveform.
Is there any hope for adjustment of this response? Do these later model probes have any response / correction data stored in them so that only a re-programming might fix it?
The 54846A identifies the probe but gets the attenuation wrong so I had to set that manually. The probe then behaved well (except for this compensation problem) at dc and high frequency.