The present disclosure provides a radio resource management system and method, a secondary system and a storage system. In one embodiment the switch is located within the column sample and hold circuitry; in another embodiment the switch is located between the column sample and hold circuitry and the readout chains. A closed compensation control regulates the reception coil output signal in the receiving coil for compensating changes which occur in the detection range of the reception coil and influence the reception coil. Mechanical integrity may be improved by forming the connector footprints with pads for the ground conductors that span multiple columns. A second set of media items that are associated with metadata that include terms that satisfy matching criteria for one or more metadata from the set of qualifying metadata and do not satisfy matching criteria for any metadata from the set of disqualifying metadata is determined.