[aprssig] Why only two symbol tables?

[Bob Bruninga]

> What is the restriction to using only "/" and "\"
> based upon?... this seems to be an interesting 
> place to allow for expanding to more than 
> two possible tables of symbols.

Yes, There are actually 36 more tables but we call them overlay characers, but you can think of each one as table if you wish.  It is just semantics.

It is that expansion into the overlay set that we have been evolving into for the last several  years.

Bob