Which practice should be avoided to maintain readability in radio transmissions?

• A. Using slang.
• B. Speaking clearly at a moderate pace.
• C. Using standard phraseology for numbers and letters.
• D. Using standard call signs.

Answer: (A)

Clear and unambiguous communication is essential in radio transmissions. Slang introduces ambiguity and varies by region or language, so it can be misunderstood by receivers who are listening in noisy environments, with static, or from different linguistic backgrounds. Keeping messages free of slang and using plain, common language helps ensure everything is heard and interpreted correctly.

To support readability, stick to speaking clearly at a moderate pace, using standard phraseology for numbers and letters, and using standard call signs. These practices provide consistency and reduce the chance of mishearing or misinterpreting the message. Slang disrupts that consistency, which is why it’s the practice to avoid.