Disclosed is a signal transmitting and receiving method and system in a mobile communication system provided with a plurality of antennas. The spinning reel fishing line guide mechanism includes first and second bail support members pivotably attached to first and second rotor arms respectively, a fixation shaft fixed to the first bail support member, a fixation shaft cover, a line roller, and a bail guiding the fishing line to the line roller through the fixation shaft cover. Then, a pre-flash ambient brightness is also measured during the pre-flash is fired. The methods still further include selecting a subset of the annotations.