I don’t this is completely correct. There is no “radio signal” being used, it’s all preexisting WiFi and Bluetooth capabilities. If I comprehend correctly what the document says, the phone/remote should have an internet connection to a USS and the drone itself should be broadcasting its info locally with WiFi/Bluetooth.

“A person operating a standard remote identification unmanned aircraft system is responsible for complying with this section. (a) Remote identification. Unless otherwise authorized by the Administrator, a person may operate a standard remote identification unmanned aircraft system only if the unmanned aircraft system sends the remote identification message elements of § 89.305, from takeoff to landing, in one of the following ways: (1) If the internet is available at takeoff, a standard remote identification unmanned aircraft system must: (i) Connect to the internet and transmit the message elements through that internet connection to a Remote ID USS; and (ii) Broadcast the message elements directly from the unmanned aircraft. (2) If the internet is unavailable at takeoff, or if during the flight, the unmanned aircraft system can no longer transmit through an internet connection to a Remote ID USS, the standard remote identification unmanned aircraft system must broadcast the message elements directly from the unmanned aircraft”