English to Slovak Tech/Engineering Mechanics / Mech Engineering headset system

It is a manual for a headset system, that can have one or several wifi base station that emit signals to enable the staff at the shop or other big premises to communicate effectively with each other.

The expression is in the following sentence:

"This device must transmit with a source-based time-averaging duty factor as described in this filing."

That is on of the rules of operation.

Thank you for your help.

Eva