You will need a program for talking through the serial port and
sending bytes. If you don't have one, go to my RoboCode web page and
grab the Java serial DLL code.

You will need to buy the radio modems sold by Pontech (www.pontech.com).

Now the important part: on the computer side, connect the radio modem
to the computer directly. Leave the radio modem in DCE mode.

On the robot side, connect the radio modem to the robot and leave it in
DTE mode. BUT FIRST, connects pins 4 and 6 together (terminal ready and
modem ready) and connect pints 7 and 8 together (request to send and
clear to send). You can do this temporarily with a male-male gender
changer and a wire wrap tool.

Now you're set. The following byte sequence, when sent from the computer
to the Scout, will make it move forward at 5 inches per second for 1 second:
1, 8, 0, 5, 50, 0, 50, 0, 0, 0, 114, 92