In article , "Dave
Stadt" wrote:

If every pilot at every airport assigned 122.8 (and probably a couple
other
CTAF frequencies) made radio calls per the AIM in the metro Chicago area
on
busy summer weekends no one would hear anything except squawks and
squeals.
Unfortunately the AIM does not allow for common sense.

contributing to the problem is the insufficient number of
unicom frequencies available.

--
Bob Noel