The technique of the present invention prevents endless circulation of reset operations of CPUs in a control system including a plurality of CPUs that mutually monitor the opposite CPUs. The method and apparatus utilize inherent characteristics of a particular mapping scheme for the QAM constellation to selectively puncture particular bits within a data symbol with signaling information and predetermined binary values to selectively increase the log-likelihood ratio gains of those particular bits punctured with the signaling information. A bushing apparatus is arranged on the transom and the hydraulic andor electrical lines are connected, via the bushing apparatus, both inside and outside the transom ). In other embodiments, multiple picture and multiple messages are provided such that the user can touch a particular picture, or the switch associated with that picture, and an audio message corresponding to the picture is then played through the speaker. In a second aspect, the digital imaging system makes use of one or more of a plurality of algorithms to determine the locations of targets in the images of the scene in the respective objects. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements.