Robert has a point- would it be acceptable to remove the charging links whilst in the pit? This would rule out the possibility of Pit activation, however It still does not allow a particularly easy de-activation should the bot loose control.

Ive been researching RF modules and have come out more confused than I went in. Which radios will accept RF modules. Are RF modules specific to their radios (eg 6 ch./7ch./8ch) and can 40Mhz modules be purchased for these? Can suynthseised modules be purchased in the 40Mhz frequency? A general explanation of modules would be much appreciated as I really dont have a clue with modules :-)