Al G wrote:

And, it is a built in "Anti-theft" tracker. If your airplane gets
stolen, and the thief doesn't turn it off, you can probably find the
aircraft and thief.

Our flight school should have one to track students on x-c. I once had a
student who almost tried to cross the Big Lake in a 150, we never would've
found him.

Al G



Here's the catch. If the transmitter is operating, there needs to be a
licensed amatuer radio operator with direct control of it. By the rules,
cant just leave it transmitting blind unattended or attended by an
unlicensed operator.

Now.. there is NO reason something similar cant be devised on a business
or aviation frequency for a given local operator. You put a reciever on
top of a 1000 ft tall antenna somewhere and you will pick up airborne
traffic for hundreds of miles. Do the same in a few key cities and you
can blanket an entire area.

Dave