Has anyone has actually tabulated or witnessed the discrepencies accuracies of the stock narrowband vs a proper wideband to see what tolerances they have at richness ? I'm looking for a graph I saw once which shows the difference really tangents off richer than 0.77 lambda but I can't find it now ...
Any guidance or numbers anyone ?
I know there is this, which is a simulated (not real/actual) output of a narrowband, and it shows resolution disappears below AFR of 12
