Your vessel is in distress and you have made radiotelephone contact with a U.S. Coast Guard vessel. The Coast Guard vessel requests that you give him a long count. This indicates that __________.
• Radiotelephone distress procedures used by the U.S. Coast Guard • How a radio direction finder (RDF) determines the direction to a transmission • What giving a “long count” (slowly counting on the air) allows another station to do with your signal
• Ask yourself: Why would a rescuing unit want you to transmit a steady, continuous, easily recognizable signal—does that help them measure anything? • Think about which of the choices actually requires you to talk continuously for several seconds, and which ones could be done with just a quick exchange of words or data. • Consider which unit (you or the Coast Guard) would more likely be testing equipment versus using your signal to obtain information about your location.
• Verify which operation specifically needs a prolonged, stable transmission from your vessel. • Eliminate any options that do not require continuous voice transmission, such as simple equipment checks or reporting coordinates verbally. • Recall that radio direction finding depends on bearing to the source of the signal, not on the content of what is said.
No comments yet
Be the first to share your thoughts!