A GPS receiver is activated and it is determined whether the GPS receiver
has received within a first predetermined attempt period of time a set of
GPS signals that is adequate to determine a location of the GPS receiver.
If not, the GPS receiver is deactivated for a first delay period of time.
The GPS receiver is then activated again and it is determined whether the
GPS receiver has received a complete set of GPS signals within a second
predetermined attempt period. If not, the GPS receiver is deactivated for
a second delay period of time that is longer than the first delay period
of time. The GPS receiver is then activated once more and again attempts
to acquire a complete set of GPS signals.