Do yourself a favour, buy a $50 radio, keep its batteries fully charged and use it on the field. Start by watching and learning how to use it properly. Even if you just listen you, will be way ahead of the game. In the scheme of things, what is $50-$60 for a piece of valuable kit? Two bags of ! nuff said.
== More information:==
# [[ Radio Protocol ]]
# [[ Recommended Equipment ]]