Just came up with an idea; if you war drive your neighbourhood -and
beyond- with GPS enabled, save the map, put up a dish-setup and swipe
it across the neighbourhood, you can determine the reach of the dish
setup.
From the map simply calculate the distance of an AP found in the war
drive to your dish setup .
Even without hi tech equipment it is then easy to find out what setup
works the best for you.
ard