What type of code is used for DSC...

What type of code is used for DSC...

Question 1 of 27070CVNTxNd1ST9fFVk4PtTo

What type of code is used for DSC transmissions?

Question 1 of 27070

Q

What type of code is used for DSC transmissions?

🔍 Key Concepts

• Digital Selective Calling (DSC) structure and purpose in GMDSS • How bits, error detection, and error correction are used in digital signaling • Difference between information bits and error-check / parity / redundancy bits

💭 Think About

• Think about why DSC transmissions need very high reliability. How does that influence the use of extra bits beyond just the information bits? • Look at the options that mention an "error check character" versus those that describe a fixed ratio or division of bits. Which description sounds more like a practical digital communications scheme? • Consider whether DSC is more likely to use a shorter or slightly longer code word to allow for checking the accuracy of a safety‑critical message.

✅ Before You Answer

• Identify which choices clearly separate information bits from error-check / error-correction bits. • Ask whether a fixed ratio of 1s to 0s is realistic for actual encoded traffic, or if that sounds more like a theoretical pattern. • Confirm that the structure you pick (bits used + error checking method) would reasonably support reliable distress and safety calling in a noisy maritime radio environment.