The 3-3-3 plan you reference talks about using "Channel 3".
I assume they are talking about FRS radios. It would be very difficult to get everyone to agree on what "Channel 3" means in the amateur radio bands since their are so many bands and modes available to amateur radio operators instead of the very limited number of channels and single mode available on FRS.
If this thread is going to be about amateur radio, I'll leave it here. If it's going to be about FRS, I'll move it to the GMRS/FRS forum.
Lead Wiki Manager and Moderator for the Radio Reference Amateur Radio Forums.
"The whole world's living in a digital dream. It's not really there, it's all on the screen." -- Joe Walsh WB6ACU