Rework the Channel Planning section to clarify, expand, and illustrate
the importance of channel plans and frequency coordination.
Clarify Radio Spectrum section
Add HeyWhatsThat Profiler to Network Modeling section
Clarify the explanation of equipment size and gain for the different
bands.
Tweak the description of antenna polarization to clarify.
Clarify the statement about link quality so it is adequate for required
applications.
Steve Lewis KC0EUW