We've gone beyond the club and LoJack to names like Auto Taser and mobile mayday system. On Jan. 2 Geroge Saddlers' three cars disappear from his garage. He's gotten two back. Thieves went to his neighborhood equipped with a device that could copy the radio frequency used to open his garage door. The do went up and his cars went out.
Thieves build a frequency grabber with components from catalogues or stores.
However, technology offers garage door opening systems with a transmitter that changes frequencies every time its used. If you have an older garage door opener you can replace it with a one that changes frequencies or locks and blocks frequencies. The cheaper alternative is to simply install a maual lock. In other cities car thieves have found yet another way to get your car. They simply tow it away.