I can see plus and negative aspects of pl tone on ham machines. One
of the major negatives is for the travelers.. Ever try to program a
rig while mobile?

No, as that is not safe. I would assume that one had to look up the
frequency of the repeaters at some point prior to driving. That would be
the time to put it in your radio, along with the associated CTCSS
programming.


Ed K7AAT