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| | [No title] |
 | | In that year, Professor Bell was engaged in the experimental development of a system of multiplex telegraphy, based on the use of rapidly varying currents. | | | The Cyclopedia is a compilation of many of the most valuable Instruction Papers of the American School of Correspondence, and the method adopted in its preparation is that which this School has developed and employed so successfully for many years. | | | The communication engineer--if so he may be called--requires a knowledge both of the mechanism of his instruments and of the vagaries of the current that makes them talk. |
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http://www.gutenberg.org/dirs/1/5/6/1/15617/15617.txt
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| | [No title] |
| | The class for which each examinee is qualified is determined by the degree of skill and knowledge in operating a station that the examinee demonstrates at the time of examination. | | | When the Novice Class operator license was established in 1951, limited frequency segments in the HF portion of the radio spectrum were established for Novice Class operators so that they could improve their telegraphy skills by practicing telegraphy on-the-air. | | | We are not adopting the ARRL suggestion that we automatically upgrade Novice and Technician Plus Class licenses to the General Class, or the suggestion of others that we automatically upgrade Advance Class licenses to the Amateur Extra Class operator license. |
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http://www.fcc.gov/Bureaus/Wireless/Orders/1999/fcc99412.txt
(11964 words)
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| | Optical telegraphy |
| | The expected superiority of the budding electrical telegraphy was probably the main reason why further optical lines were not constructed. | | | A map of Helsinki in 1855 showing the optical telegraphy line going through the town. | | | Also the old optical telegraphy line was inspected. |
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http://www.histdoc.net/lauttasaari/telegr.html
(552 words)
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| | No. 757: Semaphore Telegraphy |
| | He wrote a broad analysis of optical telegraphy -- of the possibilities for visual signaling. | | | In a generation it would be forgotten as well. | | | In 1684 Robert Hooke, who'd invented the compound microscope, turned his eye outward instead of inward. |
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http://www.uh.edu/engines/epi757.htm
(421 words)
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| | The Electrician (1910): Wireless Telegraphy for Marine Intercommunication |
| | Repairs have to be carried out at long distance from shore, and as a rule the vessels have to return to port before instructions regarding subsequent work can reach them, with the result that expensive delays are frequently incurred. | | | Recent progress to this position has been very rapid. | | | The conditions under which cable-laying vessels have to work make the value of wireless telegraphy very conspicuous in their case. |
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http://www.copperas.com/titanic/electrician/marconi.html
(3118 words)
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| | Telegraphy Books - Science & Technology Books at Biblio |
| | Told with skill and sympathetic understanding by Eugene Lyons, this narrative of an extraordinary career is one of compelling human interest." This book has 372 pages and is illustrated.. | | | Browse books in Science & Technology > Telegraphy | | | Telegraphy Books - Science & Technology Books at Biblio |
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http://www.biblio.com/catalogs/sub/810/Telegraphy.html
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| | Class Definition for Class 178 - TELEGRAPHY |
| | This class includes numerous electrical networks and components useful in telegraphy. | | | for selective nontelegraph systems, analogous to the selective systems utilized in telegraphy but restricted to the communication of a limited amount of information or control, subclasses 870.01+ for telemetering systems, and subclasses 287+ for signal box telegraph systems. | | | for selective systems analogous to the selective systems utilized in telegraphy but restricted to the communication of a limited amount of information or control signals, subclasses 287+ and 533+ for signal box systems such as the American district telegraph or fire alarm systems, and subclass 320 for signaling along a fluid conduit. |
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http://www.uspto.gov/go/classification/uspc178/defs178.htm
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| | TELECOMMUNICATION - Companies, Services, Equipment, Technology, Business |
| | In practice it also recognizes that something may be lost in the process; hence the term 'telecommunication' covers all forms of distance communications, including radio, telegraphy, television, telephony, data communication and computer networking. | | | In practice it also recognizes that something may be lost in the process; hence the term 'telecommunication' covers all forms of distance and/or conversion of the original communications, including radio, telegraphy, television, telephony, data communication and computer networking. | | | The elements of a telecommunication system are a transmitter, a medium (line) and possibly a channel imposed upon the medium (see baseband and broadband as well as multiplexing), and a receiver. |
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http://www.telecommunication.teleactivities.net
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| | Search Results for "Telegraphy" |
| | He made valuable contributions to the development of... | | | ...The international (or continental) Morse code is a simplified form generally used in radio telegraphy. | | | He was a pioneer in the development of wireless telegraphy, sound pictures, and television. |
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http://www.bartleby.com/cgi-bin/texis/webinator/65search?query=Telegraphy
(242 words)
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| | Wireless Telegraphy (1897) |
| | In fact, he aims at nothing less than the establishment of a system of telegraphy that shall include the whole earth, and by which items of news may be distributed from one political or commercial center to every other such center throughout the world. | | | His inventions in the line of alternating current generators and motors are now well known, but his experiments in currents of high frequency and high potential are not so familiar. | | | Tesla claims, is possible without the interference of one set of signals with another. |
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http://earlyradiohistory.us/1897edit.htm
(846 words)
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| | Lindsay: American Telegraphy |
| | Incredible 700 page illustrated 1912 encyclopedia of equipment, circuits, and procedures for our first "Internet". | | | Overnight the capacity of the nation's telegraph system doubled and quadrupled. | | | This is the classic encyclopedia of telegraphy that is very much in demand. |
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http://www.lindsaybks.com/bks3/maver
(320 words)
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| | History of the Atlantic Cable&Submarine Telegraphy |
| | The IEE History of Technology Professional Network page often has information on cable-related books, websites, conferences, and exhibits. | | | French cables interactive map created byPeio Elissalde using Google Maps | | | From the collection of the Bibliothèque National de France, the preceding link is a 3 megabyte PDF file of the text, and this is a 2 megabyte PDF file of the |
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http://atlantic-cable.com
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| | The Art & Skill of Radio-Telegraphy - Ch 19 Part II: History of Morse telegraphy |
| | There the Marine Dispatch Service between Hamburg and Cuxhaven, a communication system for shipping, was using an optical system, useless under bad weather conditions. | | | Telegraphy grew up with the railroads, making train dispatching, etc., easier and safer. | | | Chapter 19 - A Brief History of Morse Telegraphy - Part II Morse telegraphy was introduced into Germany in 1847 by a Mr. |
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http://www.zerobeat.net/tasrt/c19b.htm
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| | The Palm Beach Post: TELEGRAPHY PASSES INTO HISTORY WITHOUT EVEN AN `SOS'@ HighBeam Research |
| | Search for more information on HighBeam Research for. | | | The Palm Beach Post: TELEGRAPHY PASSES INTO HISTORY WITHOUT EVEN AN `SOS'@ HighBeam Research | | | Like the once-familiar squeal of a hurdy-gurdy and the clang of a trolley car's bell, the did-dah-dit of a telegraph key sending Morse code has all but vanished from the repertoire of American sounds. |
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http://www.highbeam.com/library/doc0.asp?DOCID=1P1:23117905&refid=holomed_1
(212 words)
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| | Maritime Topics On Stamps, Wireless Telegraphy on Sea |
| | First it was used for cable telegraphy, then for wireless telegraphy and later on even for optical signalling using e.g. | | | Wireless telegraphy with the SOS signal is no longer necessary. | | | In 1890 he improved the receiver of Hertz and called the new device 'kohaerer'. |
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http://www.palouse.net/hobbies/shipstamps/Topics/html/funker.htm
(1629 words)
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| | The Era of Morse Telegraphy- Part 1 |
| | Telegraphy was possibly one of the most exotic careers of all time. | | | Introduction of the automatic teletype machines during the late 1920s was the first hand-writing on the wall that the telegrapher would no longer be indispensible. | | | During 1907 ads appeared asking for thousands of students to learn telegraphy. |
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http://www.faradic.net/~gsraven/telegraph_tales/grumbine/grumbine_1.html
(1165 words)
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| | Search Results for telegraphy - Encyclopædia Britannica |
| | Expand your search on telegraphy with these databases: | | | English engineer who made numerous contributions to electronics, photometry, electric measurements, and wireless telegraphy. | | | English inventor who worked with Charles Wheatstone in developing electric telegraphy. |
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http://www.britannica.com/search?query=telegraphy&submit=Find&source=MWTAB
(287 words)
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| | W5YI : Telegraphy Elements |
| | It is universally recognized as the easiest and fastest way to learn the code. | | | Most telegraphy study material (and all that we distribute) supports "Farnsworth" spacing. | | | This is done in a number of ways including requiring a hand sending examination in lieu of receiving transmitted text. |
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http://www.w5yi.org/page.php?id=22
(378 words)
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| | site: Robert A. Heinlein - Archives - Twain's "Mental Telegraphy" |
| | He had had his book in mind some time; consequently he, and not I, had originated the idea of it. | | | If the inanimate object is able to affect and inform the clairvoyant's mind, maybe it can do the same when it is working in the interest of mental telegraphy. | | | And they have succeeded in doing, by their great credit and influence, what I could never have done - they have convinced the world that mental telegraphy is not a jest, but a fact, and that it is a thing not rare, but exceedingly common. |
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http://www.nitrosyncretic.com/rah/telepath.html
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| | Telegraphy via the Internet |
| | The text of the message being sent is displayed in real time on the computer screen, which is located nearby. | | | Perhaps it will be possible to provide e-maillinks to some of the museum curators so that more information can be obtained. | | | The purpose of this page is to provide information describing these museums, etc., which would be helpful to others that may be interested in installing such a telegraphic display. |
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http://home.comcast.net/~w4fok/museums.htm
(1269 words)
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| | Reprints of rare books and articles about electrostatic devices, wireless, and early radio. |
| | This unique text analyzes many circuits and hookups contemporary with its publication and is very useful for learning about radio. | | | This book is probably the best explanation of the history and scientific development of the electric telegraph ever written. | | | Wireless Telegraphy; It's Origins, Development, Inventions, and Apparatus, |
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http://people.clarityconnect.com/webpages2/arcsandsparks/reprintpage.html
(1339 words)
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| | SPITBULL |
| | In the early 20th Century, telegraphy was the new technology. | | | But the best ever literary treatment of telegraphy may appear in "Right Ho, Jeeves," by P.G. Wodehouse. | | | (Companies charged by the word I think.) Evelyn Waugh used this aspect of telegraphy in "Scoop" for some really funny scenes, and also as a device to propel the plot. |
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http://spitbull.blogspot.com/2006/01/text-messaging-and-telegraphy.html
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| | Radio Telegraphy |
| | In 1890, Branly, a professor of Physics at the Catholic University of Paris, discovered that when exposed to even a distant spark transmission field, loose zinc and silver filings would cohere and provide a path of increased conductivity that could be used to detect the presence of the transmission. | | | It may be fairly said that Marconi single-handedly advanced the development of radio telegraphy by decades. | | | Lodge added a device that shook the filings loose between spark receptions. |
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http://www.ee.umd.edu/~taylor/Electrons2.htm
(521 words)
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| | Telegraphy |
| | Today the telegraph is less widely used, having been supplanted by telephones, facsimile machines, and electronic mail. | | | Telex is a telegraphy system that transmits and receives messages in printed form. | | | In addition to wires and cables, telegraph messages are now sent by such means as radio waves, microwaves and communications satellites. |
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http://collections.ic.gc.ca/cable/telegrap.htm
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| | The Wireless Telegraphy (Spectrum Trading) Regulations 2004 |
| | Circumstances in which a transfer is not authorised | | | The text of this Internet version of the Statutory Instrument which is published by the Queen's Printer of Acts of Parliament has been prepared to reflect the text as it was Made. | | | The print version may be purchased by clicking here. |
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http://www.opsi.gov.uk/si/si2004/20043154.htm
(2181 words)
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| | Samuel Morse |
| | Morse is remembered for his Code, still used, and less for the invention that enabled it to be used, probably since landline telegraphy eventually gave way to wireless telegraphy. | | | It was widely used in the American Civil War, where rapid deployment techniques for land-lines were developed; the Spanish-American War found the first use of telegraphy for newspaper correspondents (1898). | | | This was the seed out of which the electric telegraph grew. |
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http://www.rod.beavon.clara.net/samuel.htm
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| | Short History of Telegraphy - Part 1 |
| | But electricity was on its way to assist the art of telegraphy. | | | Telegraph was a word coined in 1792 from the Greek, tele, afar, and graphos, a writer. |
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http://www.samhallas.co.uk/telhist1/telehist.htm
(1076 words)
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| | The Art & Skill of Radio-Telegraphy - Title Page |
| | The psychologists who have seriously studied those who have developed this skill have been fascinated and challenged to try to understand it. | | | "For those who are interested in telegraphy, for those who would like to learn it, for those who love it, and for those who want to improve their skills in it." | | | A Manual For Learning, Using, Mastering And Enjoying The International Morse Code As A Means Of Communication |
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http://www.geocities.com/gm0rse/n0hff
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| | WIRELESS TELEGRAPHY ACT, 1926 |
| | the expression "wireless telegraphy" means and includes any system of communicating messages, spoken words, music, images, pictures, prints, or other communications, sounds, signs, or signals by means of radiated electro-magnetic waves originating in an apparatus or device constructed for the purpose of originating such communications, sounds, signs, or signals; | | | the word "broadcast" means the transmitting, relaying or distributing by wireless telegraphy of broadcast matter; | | | Restrictions on user of apparatus for wireless telegraphy. |
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http://www.irishstatutebook.ie/1926_45.html
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| | No. 19/1988: BROADCASTING AND WIRELESS TELEGRAPHY ACT, 1988 |
| | "Television set" means any apparatus for wireless telegraphy capable of receiving and exhibiting television programmes broadcast for general reception (whether or not its use for that purpose is dependent on the use of anything else in conjunction therewith) and any assembly comprising such apparatus and other apparatus. | | | (b) relates to apparatus for wireless telegraphy which is of such class or description, and | | | (b) any person who operates, or assists in the operation of, the apparatus for wireless telegraphy by means of which the broadcast is made. |
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http://www.acts.ie/zza19y1988.1.html
(5173 words)
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| | Maritime radio telegraphy world wide news, |
| | He has composed this CD from collected information of the "Nautical high school Bremen" and from private sources. | | | The CD starts with a short introduction of the 100 year old history of the Maritime radio telegraphy. | | | From what you hear you may guess what kind of ability was necessary for a radio operator and what a sensitive ear was needed to select the right information. |
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http://www.seefunker.de/sfk/CD-E.htm
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| | The Fascination of Radio Telegraphy (1920) |
| | After all, the only difference between an Amateur operator and a professional is that the professional receives pay--and good pay, too--for doing practically the same as the Amateur does on a smaller scale for pastime, recreation and instruction. | | | Grammar, High School, and College boys are represented, while men from every profession and trade find Radio Telegraphy a highly instructive, intensely interesting and useful pastime or hobby, as well as one of the most potent features in the development of our modern civilization. | | | There is hardly a sport or pastime more fascinating, more useful, or more practical; and which holds out greater possibilities for future development; than does Radio Telegraphy. |
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http://earlyradiohistory.us/1920how.htm
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| | Wireless Telegraphy |
| | This included research into how wireless telegraphy could be used by military aircraft. | | | By the start of the war in 1914 Musgrave and his team had devised a system where pilots could use wireless telegraphy to help the artillery hit specific targets. | | | Major Herbert Musgrave was placed in charge of RFC's experiments. |
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http://www.spartacus.schoolnet.co.uk/FWWairwireless.htm
(672 words)
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| | Wireless Telegraphy |
| | The apparatus he used was based on the ideas of the German physicist, Heinrich Hertz. | | | In 1898 Marconi successfully transmitted signals across the English Channel and in 1901 established communication with St. John's, Newfoundland, from Poldhu in Cornwall. | | | After patenting his wireless telegraphy system in 1896 he established the Marconi's Wireless Telegraph Company in London. |
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http://www.spartacus.schoolnet.co.uk/FWWwireless.htm
(556 words)
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| | [No title] |
| | Section 407(2) Communications Act 2003 requires that this Order is not made until a Bill, which repeals and re-enacts the enactments modified by this Order, or enactments relating to matters connected with the matters to which enactments modified by this Order relate, has been presented to either House of Parliament. | | | Sub-paragraph (2) does not restrict the effect of any enactment falling within sub-paragraph (2)(a) to (c) that makes provision as to the manner in which the Secretary of State may exercise such a power. | | | A full regulatory impact assessment has not been produced for this instrument, as it has no impact on the cost of business. |
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http://www.dti.gov.uk/consultations/files/publication-1282.doc
(1005 words)
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| | Rules concerning the Control of Wireless Telegraphy in Time of War and Air Warfare, Drafted by a Commission of Jurists ... |
| | In time of war, the operation of wireless stations continues to be organized, so far as possible, in such manner as not to interfere with the service of other wireless stations. | | | In the presents rules, the term "military" must be understood as referring to all elements of the armed forces, i.e. | | | Rules concerning the Control of Wireless Telegraphy in Time of War and Air Warfare, Drafted by a Commission of Jurists at the Hague, December 1922 - February 1923. |
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http://www1.umn.edu/humanrts/instree/1923a.htm
(4029 words)
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| | Telegraphy and Telephony Patents - The Edison Papers |
| | It is arranged in chronological order by execution date, which is the date on which Edison signed the application and the date in the patenting process that comes closest to the time of actual inventive activity. | | | The following list contains the 186 patents Edison received concerning telegraphy and telephony. | | | Telegraphy and Telephony Patents - The Edison Papers |
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http://edison.rutgers.edu/telepats.htm
(117 words)
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| | The Telegraph Office -- for Telegraph Key Collectors and Historians |
| | You should be able find information about an old telegraph key or other artifact that you have. | | | Notice how teeth on the perimeter of the whell form the letters "SOS." Also note the long "key down" period so the DF (direction finding) crews could get a fix on them. | | | The Fullerphone by Louis Meulstee: Unique telegraphic device developed during W.W.I. "Secret Wires", Civil War Telegraphy, by Fred Chesson. |
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http://www.telegraph-office.com/tel_off-page.html
(2958 words)
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| | [No title] |
| | The received signals were too weak to be useful. | | | Because of the length of submarine cable and its capacity to hold a large amount of charge, the ordinary Morse method of telegraphy was not practical. | | | The pictures above show the Florida in drydock before repair, then with her new bow completed 24 days after repairs were begun, and the wrecked 100 tons of bow squashed into 5 feet thickness after being lifted away from the ship. |
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http://www.zianet.com/sparks/sub.html
(785 words)
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| | TELEGRAPH INSTRUMENTS OF EUROPE |
| | It is a celebration of the pioneering technologies that started the communications revolution with a special emphasis on telegraphy. | | | This book was printed using very high quality paper, and the glossy images are absolutely superb. | | | A must-have on every bookshelf of the telegraph collector. |
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http://www.faradic.net/~gsraven/fons_images/fons_museum.html
(175 words)
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| | Browser wars of the wireless telegraphy age |
| | The analogy with the recent browser wars is intriguing, and we can only hope that in this instance interoperability standards will win out without loss of life. | | | Paul Harden , an amateur radio operator, wrote the following account of the ways in which the Titanic's tragedy was compounded by commercial infighting between two rival providers of radio telegraphy services. |
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http://tbtf.com/resource/telegraph-browser-wars.html
(769 words)
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| | [No title] |
| | (2) For the purposes of this section a Court may presume that a person possesses wireless telegraphy apparatus if such apparatus is under his ostensible charge, or is located in any premises or place over which he has effective control. | | | —The telegraphy authority constituted under the Indian Telegraph Act, 1885, shall be the authority competent to issue licences to possess wireless telegraphy apparatus under this Act, and may issue licences in such manner, on such conditions and subject to such payments, as may be prescribed. | | | (2) ‘wireless telegraphy apparatus’ means any apparatus, appliance, instrument or material used or capable of use in wireless communication, and includes any article determined by rule made under Sec. |
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http://www.dot.gov.in/Acts/wirelessact.htm
(838 words)
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| | The VHSC home page |
| | copy very high speed telegraphy, and doing so, to encourage CW-Traffic in general and QRQ-Traffic | | | Be active on the bands, using telegraphy speed of 40 wpm or higher, and show your ability to read | | | The Radio Telegraphy Very High Speed Club VHSC was founded on May 1st 1961 under protection |
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http://www.morsecode.dutch.nl/vhscn.html
(261 words)
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| | The Science of Telegraphy |
| | The line was operated using the principles of Morse telegraphy. | | | Samuel Morse set up his first commercial telegraph line in 1844, between Baltimore and Washington in the United States. | | | How did that single strand of iron wire cause such a communications revolution? |
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http://collections.ic.gc.ca/cable/scientec.htm
(1176 words)
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| | American Telegraphy & Encyclopedia of the Telegraph |
| | This new reprint of the classic Nineteenth Century book "American Telegraphy" is a comprehensive encyclopedia of one of the earliest and most impressive forms of communication and technology. | | | This book is fully illustrated and offers in depth explanations of the theories behind the telegraph system, apparatus, operation and much more! | | | American Telegraphy & Encyclopedia of the Telegraph, by William Maver Jr. |
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http://www.mjdtools.com/books/142749.htm
(160 words)
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| | British Empire: Science and Technology: Communications: Telegraphy |
| | Before the advent of this technology, the British government had had to entrust a great deal of local powers to its representatives across the world. | | | The fact that this took place on the exact opposite side of the world illustrates how much smaller the empire had become with the advent of telegraphy. | | | A German merchant ship was fired on by coastal batteries as she attempted to leave port. |
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http://www.britishempire.co.uk/science/communications/telegraph.htm
(1315 words)
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