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These are from the days of the old "click-mode" of Morse. A click and then a
short Period until the the next period. This was a rather confusin method of Morse. Thank God for more intelligent ways to communicate. Ways that are conducive to our fast pasted life-styles. Wayne (KC8IO) "Wayne Jones" wrote in message .. . I have used morse code with a key (ve3gqx) but have always wondered how people sent and recieved code by tapping on pipes etc. Can anyone explain how this is done? How does one distinguish between a dot and a dash? tnx Wayne |
#12
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I'm late reading this but dag, what a great story and what a great
experience for a young boy. Thanks for sharing. 73 de John ks4xn wrote in message ups.com... Falky foo posted: "slight pause after the dashes & using context" Precisely, just as how the traditional telegraph clickers were used to communicate. I learned to read traditional Morse courtesy of the Pennsylvania Railroad at the ripe old age of 6, well before I developed any level of competence in reading the printed word. IIRC, it took only about 2 or 3 weeks of exposure before I could print every character being sent though their telegraph line. (My grandad was retired from the PRR, but on several days a week he would walk down to the BO shack, an interlocking and route control station in Bordentown, NJ, to play poker, while hauling me along. It didn't take very long before one of the signalmen decided to turn me from a liability into an asset by teaching me how to copy the language of the 'clicker', which I dutifully did, printing every character that came acoss the line very neatly on a pad of paper that the workers there had provided for this purpose, so the card game could continue without interruption. Later, at around age 8, I could operate the BO interlocking all by myself, setting up the switches and locks for the next oncoming train. It was great fun, although I had little doubt that one of the card players was watching over my shoulder the entire time. IIRC, here's the consist of typical train orders that were received by telegraph: "1215Z TRN1025 9PASS RT TRENTON JDR SK" and "1411Z TRN1140 XX 21FRT RT DIX RBD SK". The first message indicates that it's a 9-car passenger train that is to be routed on the mainline to Trenton, and the latter pertains to a 21-car freight that is to be routed to Fort Dix, NJ. The XX would alert each location along the route that this train is carrying explosives or hazardous materials that could present a threat to residents or communities along the track route were an accident to occur. (The very worst train classifications are the dreaded "XXX" (extreme explosives, liquified toxic gas, etc.) and "XXN" (nuclear) designations, which require local authorities to be contacted prior to the train's passage. I would respond to each keying "ACK TRN1140 RT DIX JVC SK", then set up the switch route for the train. (JVC was my grandad's line ident.) If the train orders contained an XXX or XXN designation, it was time to interrupt the card game! The key to reading Morse Code is the timing of the characters, and their very unique rhthms. Even today, more than 50 years later, I hear that summary "SK" (end of transmission) as, click, click, click, clack, click, clack". Similarly, "AR" (over to you) is "click, clack, click, clack, click". Run either of these two common phrases across your tongue quickly, and you'll remember that unique sound for the rest of your life with absolutely no memorization required. Curiously, when you hear dit-dit-dit-dah-dit-dah or dit-dit-dah-dit-dah, you'll also automatically recognize what this very different type of sound mean as well. SK and kindest regards, Harry C. |
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