If you're really feeling adventerous, you could hook one of
these up and switch to any channel, or even go to 2.4 ghz. If the pinouts match, they are a drop in replacement...You'd have to do a little testing to check, but it'd be cool to have your bot on 2.4 ghz. This also has the potential of hooking one up to a laptop to listen to the robot as it broadcasts and log data. You could also hook one up and have a wireless programming link.
Just a few thoughts.
Bill