This is not an easy question to answer. Most people will use their cell phones and bluetooth at events both in the pit and in the stands. However, the power is usually low and the output fairly well filtered to prevent interference with other services. The product might produce interference that could affect the robot control but without looking at the product there is no way to tell. If you think it might produce some interference, you need to check with FIRST engineering before you power up.
<R85> Any decorations that involve broadcasting a signal to/from the ROBOT, such as a remote , cameras, must be cleared with FIRST Engineering prior to the event and tested for communications interference at the venue. Such devices if reviewed and approved, are exclude from <R64>. Note that 900 MHz camera systems will not be approved, and are not permitted.
I would assume… based on this rule, that as long as it’s not near the 900 MHz range… it will be fine, and will not interfere with the radios.
…as for the sound system… as long as it’s only broadcasting sound, and not playing loud music in the PITS, then I think it’s OK. But, you may wan’t to clear it with FIRST Engineering.
“Do not play loud music in the Pit because it interferes with important announcements.
If a team receives more than a warning or two, the power to the team’s Pit Station will be
shut off and/or the music confiscated.”
So, if I listen the music with a low level, there is not restrictions, alright?
0dBm is a normal reference for audio levels so that specification is still suspect as to what it refers to. If the transmitter is only 0dBm output power, then there is likely no chance for interference. Another application for your sponsor’s product would be to give it to the audio guys and let them use it to send signals to the remote speaker locations, again with FIRST approval. This sounds like a pretty cool device anyway.