Patent ID: 8264408

Claim:
A method, comprising: activating a calibration operation in a device; identifying calibration signal sources based on signals received in the device; displaying an identification on the device for each of the calibration signal sources, the identification being derived from the received signals; if more than one calibration signal source was identified, selecting a calibration signal source from the calibration signal sources displayed on the device; displaying instructions on the device for orienting the device relative to the calibration signal source; receiving a signal from the calibration signal source into the device via a signal receiver array coupled to a direction-finding system in the device; measuring a signal response induced by the signal in each signal receiver of the signal receiver array; determining, based on the signal response, if the received wireless signal quality is sufficient for use in calibration; if the quality of the received signal is sufficient for use in calibration, determining orientation information for the device when the signal response is measured; storing the signal response and the orientation information at various instances while moving the device in accordance with instructions displayed on the device; and calibrating the direction-finding system in the device based on the stored signal response and the orientation information.