WCVT (101.7 Stowe, VT)

[Bob DeMattia]

HAAT is calculated using eight evenly spaced radials,
starting at 0 degrees and every 45 degrees after that.  Fifty
evenly spaced points along each radial from 3 km to 16 km are
taken and the 8 x 50 = 400 points are then averaged.  The FCC
allows the applicant to use more radials if they want to, but
the points are always evenly spaced between 3km and 16km.

This is explained on the FCC website here:
http://transition.fcc.gov/mb/audio/bickel/haat_calculator.html

-Bob