What actions must be taken during fog when navigating with radio?

Using fog signals, adjusting speed, and maintaining a lookout are crucial actions during fog when navigating with radio. Fog significantly reduces visibility, amplifying the risks associated with navigation. Employing sound signals serves as an effective means of communication with other vessels that may not be visible. By adjusting speed, you can better respond to unexpected obstacles and hazards, allowing for more manageable maneuvering in limited visibility conditions.

Maintaining a lookout is essential in foggy conditions, as it helps in detecting other vessels, navigational aids, and hazards that might not be apparent. This multi-faceted approach combines the use of radar and radio communications with traditional navigational practices to enhance safety and situational awareness when visibility is compromised.

In contrast, switching off communication devices would hinder the ability to communicate with nearby vessels and receive crucial navigational information, while increasing speed could result in reduced reaction time to obstacles. Relying solely on visual navigation tools in fog would ignore the limitations of visibility and neglect the importance of auditory cues and technology in ensuring safe navigation.