Jerry said: > RFID part is simple and cheap... Agreed. > but the fractal antennae... What is the exact length of this fractal antennae, and what is the exact surface area? (The above is a joke for those who know a little about fractals.) > and the 100/200 Ghz range may pose problems with > the regulatory folks, at least in the U.S. Low-power transmitters don't need much of a license, so as long as one is not trying to track things miles away, I can't see the FCC complaining about a few microwatts of hash in the Ghz range anywhere except near air bases, radio telescopes, etc. jim :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::