true however on most areas there are tall structures, hills, or
moutnains where repeaters can be setup.

they said the failure was due to a phone circuit. all you would need to
do would be to microwave to a point up to 30 miles away where you can
then patch into an alternate circuit

the FAA already had a microwave network in place... if you drive by any
of the center facilities, you will see at least one microwave antenna

also most sectors have some military radar coverage. I know in Phoenix
thhere have been a few problems with center radar and the Luke Air force
Bace(KLUF) was able to assist.

JOHN


Nobody wrote:
JA_MORAN wrote:

what about backup systems
a Microwave point to point could work, how about different feeds from
different circuits? or a SAtellite dish...



Microwave only has limited range, so you need to build a network of
repeaters/towers. And both microwave and satellite can be affected by
bad weather (heavy snow, heavy rain).