Which channels are primarily for use by recreational vessels?

The correct answer identifies channels 68, 69, and 71 as primarily for use by recreational vessels. These VHF radio channels are designated specifically to facilitate communication among pleasure boaters. They are often used for non-commercial purposes such as hailing other boats, requesting assistance, or coordinating recreational activities. This makes them particularly useful for recreational boaters who need reliable channels for communication while on the water, ensuring safety and enjoyment during their outings.

Channel 70 is reserved specifically for Digital Selective Calling (DSC) and is not intended for general communication, which makes it unsuitable for typical recreational vessel use. Channel 9, while it can be used for noncommercial communication, is often designated for marine communications related to safety and is monitored by the Coast Guard for emergency purposes, making it less ideal for casual recreational conversations. Channels 24-28 may also be used, but they are not specifically designated for recreational vessel use like channels 68, 69, and 71.