Question
Define the terms marking and spacing with respect to the flow of current in a telegraph system.
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## Defining Marking and Spacing in Telegraph Systems Show more…
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Express all probabilities as fractions. The International Morse code is a way of transmitting coded text by using sequences of on/off tones. Each character is 1 or 2 or 3 or 4 or 5 segments long, and each segment is either a dot or a dash. For example, the letter $G$ is transmitted as two dashes followed by a dot, as in $--\bullet .$ How many different characters are possible with this scheme? Are there enough characters for the alphabet and numbers?
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