Recent content by John L. Murphy

Let's go over it again. These measurements are not trivial and take a while to understand. This time I'll use the SPL mode to demonstrate that a measured peak does not change in level as you go from 1 to 1/3 to 1/24 octave resolution. The measurement depends strongly on the nature of the signal...

For someone unfamiliar with spectrum analyzer measurements the level shift Bruce has noticed may be unexpected. But experienced engineers will recognize this as correct behavior. This is not a "bug" at all. Let me explain. As the resolution of TrueRTA is increased (say from 1/3rd octave to...