I have seen many confusions when peoples wonder trace settings. There is many settings including peak hold max, min, averages etc. These can select individually for all 4 traces. And then there is other "mystery": Detector. Also it can of course set individually for all 4 traces.
Trace average and video average is very different. In simply: Video average works inside one sweep but trace average averages sequential sweeps. But, when run long time Trace average it also result nearly same as video average but... still video average is very very different is look its result and Detector mode Pos Peak and with it done trace averaging. Video average may give "nice looking" image but there is serious trap where user can drop if do not be careful. Video average is nice for noise but it may loose signal if signal is quite narrow on the screen. Mostly, use Detector mode Positive Peak! Until you really NEED something else. In some cases even Neg Peak may be handy in right place and in right hands what know what are doing.
Note that I have selected 10Hz RBW but 30Hz WBW just for give more clear visibility to these things and get more wide p-p so that Neg Peaks hit this spectrum absolute bottom border around 940pV.
Perhaps these images may clarify even something. (with these images can also get imagine about DANL)
![](https://www.eevblog.com/forum/testgear/siglent-ssa3000x-spectrum-analyzers/?action=dlattach;attach=233945;image)
![](https://www.eevblog.com/forum/testgear/siglent-ssa3000x-spectrum-analyzers/?action=dlattach;attach=233947;image)