Go to the ARRL site for the complete list of known test areas.

Actually they aren't there (yet). I do have a pretty good set of
documentation, including streets in most cases, but am not posting it.
Although cooperation has been slow, we are starting to see some cooperation
from some electric utility companies. One of the promises I make to them is
that ARRL will work with them to help them understand the interference
potential, but we will do so in the least-destructive way possible. Having
hordes of angry hams swarming around the trial areas would not meet that goal.

Here are the known cities:

Birmingham, AL area
Cullman, AL (may be concluded)
Bay area, CA (5 GHz-only system!)
Atlanta, GA area
Honolulu, HI
Boise, ID
Potomac, MD
Cape Girardea, MO
Raleigh, NC
Briarcliff Manor/Ossining, NY (Westchester Cty)
Dublin, OH
Hyde Park, OH
Bethlehem, PA (new - just getting started)
Emmaus, PA
Whitehall, PA
Azle, TX (new, little data available)
Manassas, VA

If hams live in those areas and can help, contact me at .

73,
Ed Hare, W1RFI