EasyLink describes a simple way to make your own 2.4GHz DSS (Digital Spread Spectrum) Radio Control system. It use easily available 2.4GHz radio modules from Unigen (other available too), to establish a unique and secure two-way link from your hand held unit to your model.

Detailed information is in the Wiki.

For more radio control fun, see my other project:
http://code.google.com/p/osfcproject/