Question
Which of the following is a digital communications mode?
Answer Options
- A) Packet radio
- B) IEEE 802.11
- C) FT8
- D) All these choices are correct
Correct Answer: D
Explanation
A digital communications mode is any mode that uses a computer or digital encoding device to translate information (like text, data, or voice) into a sequence of binary ones and zeros for transmission. All of the options listed are examples of digital modes used within the Amateur Radio Service.
Packet radio (T8A02) sends data in structured bursts. IEEE 802.11 refers to Wi-Fi, which can be used on amateur microwave bands for high-speed data. FT8 (T8D13) is a popular, extremely sensitive mode for weak-signal contacts. Because the amateur service encourages technical experimentation, many forms of digital communication are legal.
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