Is the bug in the TG or SA? if you just run a 10Mhz signal in does the glitch show? I've been thinking about buying this setup with the TG but that bug would drive me crazy.
The bug is in the SA WHEN TG is activated. When the TG is OFF the SA works flawless.
I did this check to confirm this (I explained in a replay above, to be able to check the bug without having a passband filter on 10 MHz):
- Connected an external signal generator @ 10.000.000 Hz to the SA input.
- Center frequency at 10.000 kHz to have the trace of the external generator .
When I switch the TG ON (without connecting it to the SA input) I get the trace peak position shifting to the right (or left) a few pixels.
If you use a narrow bandwidth it's more evident.
This small shift is the part missing of the trace when measuring a filter response @ 10 MHz
As I said, maybe this bug is repeated at other frequencies I didn't check, maybe someone will find it.
If you use the instrument on the HF portion (as I usually do) you will hit this bug for sure. I often need to build and trim 10 MHz filters and this bug make it impossible to do and for me this is not an instrument and Rigol is not giving any solution. When I met the german Rigol support at Friedrichshafen they gave me no hopes.
Cncjerry, better you buy a used HP/Agilent unit, you will be happier.
I renew here the question:
Is there anyone else who can confirm the Hardware/Firmware pair showing the bug?