[EricH]

Originally Posted by Al Skierkiewicz

From Section 3 At the Events...

• Robots may be operated via wireless control only on the competition fields; and
• Two-way radios or other form of wireless communications are not allowed (with the exception of the previous bullet).

Al, they updated that in Update #8. The last bullet now reads:

• Teams are not allowed to set up their own 802.11a/b/g/n (2.4GHz or 5GHz) wireless communication (access points or ad-hoc networks) in the venue.

That said, getting a message from up in the stands could count as having an extra TEAM member outside the ARENA, which is a penalty (<G48> and/or <G50>).

Also, <T26> was quoted earlier. <T27> is even more explicit:

<T27> Devices used solely for the purpose of planning or tracking strategy of game play are allowed inside the ALLIANCE STATION, if they meet ALL of the following conditions:
;;;
 Do not communicate with anything or anyone outside of the ARENA.
 Do no include any form of enabled wireless electronic communication (e.g. radios, walkie-talkies, cell phones, Bluetooth communications, WiFi, etc.)
 Do not in any way affect the outcome of a MATCH, other than by allowing team members to plan or track strategy for the purposes of communication of that strategy to other alliance members.