The Radio Notification is a configurable feature that enables ACTIVE and INACTIVE (nACTIVE)
signals from the SoftDevice to the application notifying it when the radio is in use.
Radio Notification signals
Radio notification signals are used to inform the application about radio activity.
Radio Notification with concurrent peripheral events
The Peripheral link events are arbitrarily scheduled with respect to each other. Therefore, if one link event ends too close to the start of a peripheral event, the notification signal before the peripheral connection event might not be available to the application.