Hi Dennis:
Yes...well you can see from the graphs something is amiss for sure in David's head. That 0.5dB dip jumps out at you. Tricky thing with that, without doing these flatness tests I could have not noticed the head is outside spec. as its only 0.3dB out in that band.
Both the SA and the Boonton saw it.
Really strange...I might do a tear down on it and reassemble.
Otherwise how does the graph of my head look compared to your data on a properly operating head?
