Wireless: Why am I getting "F" when I try to register one of my beltpacks?

Question: Why am I getting "F" when I try to register one of my beltpacks? We have two base stations and just 10 beltpacks, but occasionally move a beltpack from one base to another.
Answer: Getting an “F” when you attempt to register a beltpack, that would indicate that you have reached the 15 unit max on the base and you would need to reset the base to add beltpacks. You should know that by registering a single belt pack several times with a base will take up several spots of your base's 15 units max limit. For example if you registered a beltpack to a base and use it on one show and register it to another base for a different show it will not work on the previous base.  If you return to the original you would then need to re-register it again which would then take up two spaces on the base.

See attached document.