Which statement is correct regarding a method for a vessel experiencing problems with shadowing of an Inmarsat-B SES antenna?

Changing the course to remove the shadow is the correct approach for a vessel experiencing problems with shadowing of an Inmarsat-B SES antenna. The Inmarsat-B system relies on line-of-sight communication between the vessel's antenna and the satellite, and when obstacles such as land or other structures block this line of sight, signal strength is compromised, leading to communication issues.

By changing course, the vessel can reposition itself to a location where the antenna has an unobstructed view of the satellite. This repositioning is critical for maintaining effective satellite communication, particularly for essential functions such as distress communications or operational messages.

The other options, while potentially considered in different contexts, do not address the fundamental issue of line-of-sight obstruction caused by shadowing. Adjusting the Coast Station ID programming or switching communication methods would not resolve the fundamental problem of reduced signal due to physical obstructions. Installing a shadow correction filter might technically improve signal reception, but it does not directly solve the core issue of shadowing caused by geographic or structural interference.