Which code indicates a signal is good?

• A. 10-1
• B. 10-2
• C. 10-33
• D. 10-4

Answer: (B)

In radio communications, codes are used to quickly convey current conditions. The one that directly signals that the transmission is clear and readable is 10-2. This status tells you the signal quality is good, meaning you can hear and understand the other party without issues. That’s why it’s the best choice for indicating a good signal.

Other options describe different situations: 10-1 means unable to copy the transmission, which is the opposite of a good signal; 10-33 is used for emergency or priority traffic; 10-4 means the message was received and understood, but it doesn’t specifically comment on the signal quality itself.