Final answer:
Effective boat docking communication is typically conducted via radio, ensuring clear, immediate coordination. If an extraterrestrial radio message is received, a commission analyzes its characteristics to advise the president on a response, taking into account majority and minority opinions.
Step-by-step explanation:
To direct customers on boats for dockage, the most effective method is radio communication. This allows for clear instructions and immediate feedback between the shore personnel and the boat operators. The channel or frequency used must be predetermined and known to both parties. Common maritime communication channels vary by region and purpose, but they are typically well-established and monitored for safety and coordination. The signals are generally strong enough to be detected by standard marine radios, and communication should be continuous during the docking process to ensure safety and efficiency. Hand signals from the shore can be used as a supplementary method in case of radio failure or as a secondary form of communication.
If a radio message has been received from an extraterrestrial civilization, the advisory commission would analyze data such as the direction of the star, broadcast channels, frequency width, signal strength, and continuity of the signal. Based on these findings, the commission would advise the president on whether to respond to the message, considering both majority and any minority views within the group.