EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: cvanc on October 03, 2018, 07:50:56 pm
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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 |O
What the heck am I missing? Thanks.
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The obvious answer is: this function wasn't implemented. But I could be wrong.
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Don't have one and can't test, but is there a dBc or dB mode? dBm is a dB scale referenced to 1mW, so moving the reference point for a relative measurement would just be a dB or sometimes dBc measurement... I don't think it would be meaningful to have a dBm based scale with a relative reference, because then it would just be a dB*that value* scale.
So my point relative to your question is: maybe it's under some other dB mode? I think the SCPI commands are supposed to mimic fluke and agilent meter commands, so if it were available over GPIB, I'd expect it exists in there somewhere.