Dave,
Keep at it, you'll figure it out eventually. Jerry and
I don't agree on several things, which is neither here nor
there. And a lot of his research is useless, for any practical
use. Ask him, he'll tell you the same thing.
There is a big difference between what is done in a lab for
testing or research purposes and what is done in the 'real'
world. Most, or at least some of the things done in the lab
are just not needed with 'practical' antennas and radio
stations.
I'm afraid you will have to pass your certifications by your
self. I quit taking them a long time ago...
'Doc