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5

To get all the way to India would take several steps. At the turn of the century there were three cables from Aden to Bombay. So, if you needed to wire Madras from London, the message would first have to be sent to Aden, then to Bombay, then on to Madras. In general, most of the long line pre-WW2 cables were single conductor only (one channel). Here is a ...


3

All this is described in many books on the history of laying the first transatlantic cable. For example, in J. S. Gordon, A thread across the ocean, Walker, NY, 2002. The story is too long ans exciting to tell it here but some of your questions can be answered shortly. The early cables handled one message at a time. Moreover, the transmission was very ...



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