I might be missing the obvious but I can't figure out the keystrokes to make this work and the manual is no help either.
I'm doing some analog audio work, so I'm reading AC volts in dBm mode (example: 400Hz at +4dBm) and want the Rigol to show 0.00dBm at that level so I can directly read gain or loss in dB as I adjust my circuit.
Anyone who has a Fluke 8060 knows how easy it is to do this. But I can't make it work with the Rigol.
When I engage relative mode the display jumps to what seems like a nonsense value (-70 something).
And the manual is.. well the less said the better, it only made me more confused
![Banging Head |O](https://www.eevblog.com/forum/Smileys/default/bangheadonwall.gif)
What the heck am I missing? Thanks.