Internet of Things (IoT) Practice Exam

What is the maximum data transmission rate for Morse communications?

1. Less than 4k bit/second

2. Less than 100 bit/second

3. Less than 20 bit/second

4. Less than 1k bit/second

The correct answer is: Less than 20 bit/second

The maximum data transmission rate for Morse communications is generally considered to be less than 20 bits per second. This limitation arises from the encoding system of Morse code, where information is transmitted as sequences of dots and dashes. The speed of transmission is affected by factors such as the ability of the operator to send and receive Morse signals, the clarity of the communication medium, and the inherent delays in interpreting the sequences of signals. In practice, while skilled operators can transmit Morse code relatively quickly, the effectiveness diminishes as speed increases beyond this threshold due to comprehension issues, making 20 bits per second a practical limit for most scenarios. This understanding aligns with historical applications of Morse code, particularly in radio communication, where reliability and clarity were prioritized over sheer speed. As for the other options, they either overshoot or undershoot the practical capabilities, as advancements in technology have enabled higher speeds in various forms of digital communication, but Morse code remains much slower by its nature and methodology.