The Telegraph Time Machine


Posted on Feb 6, 2014

The great network of telegraph wires that once enfolded the nation like a cobweb has vanished just as surely as the spider`s handiwork is erased by a sudden sweep of the broom. ` Please note that the information below is obsolete. Dial-up Morse is no longer in common use. This page is here for historical purposes only. Please refer to the web site


The Telegraph Time Machine
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Morse KOB for the latest on current landline Morse technology. The great telegraph wire broom may have gotten all of the old open wire lines, but American Morse is still being used as a means of communication. This is a report on "dial-up" telegraphy, the last remaining vestige of landline Morse telegraphy in the US. The Morse Telegraph Club is a group of enthusiasts interested in any topic concerned with Morse code and telegraphy. Probably the biggest constituency in the club is retired landline Morse operators. Each year, the various chapters around the country meet on Professor Morse`s birthday to remember the good old days of landline telegraphy and the heyday of the railroads. In addition, keys and sounders are dusted off and telegraph circuits are established with other chapters around the country. Morse code is soon heard clicking from sounders and greetings are received from friends in other chapters. How is this accomplished The MTC members use an interesting combina tion of modern and 150 year old technology which is called "dial-up" telegraphy. This article describes how dial-up telegraphy works, and how the interested Morse enthusiast may participate. Dial-up telegraphy uses technology salvaged from the wave of inexpensive personal computer equipment that became available in the 1980s. The "modem" which is essentially a transceiver designed to transmit digitally encoded data over voice phone lines is easily...




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