morse-cable code
11Transatlantic telegraph cable — The first transatlantic telegraph cable crossed the Atlantic Ocean from Foilhommerum, Valentia Island, in western Ireland to Heart s Content, in eastern Newfoundland. The transatlantic cable bridged North America and Europe, and expedited… …
12Commercial code (communications) — In telecommunication, a commercial code is a code once used to save on cablegram costs [1][2]. Telegraph (and telex) companies have always charged based on the length of the message sent and this has not changed since the 19th Century. To this… …
13American Standard Code for Information Interchange — « ASCII » redirige ici. Pour les autres significations, voir ASCII (homonymie). Les 95 caractères ASCII affichables : ! #$% ()*+, ./ 0123456789:;<=>? @ABCDEFGHIJKLMNO PQRSTUVWXYZ[]^ abcdefghijklmno pqrstuvwxyz{|} Le jeu de… …
14Electronic color code — The electronic color code discussed here is used to indicate the values or ratings of electronic components, very commonly for resistors, but also for capacitors, inductors, and others. A separate code, the 25 pair color code, is used to identify …
15List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… …
16Electrical telegraph — A printing electrical telegraph receiver, and a transmitter key at bottom right An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device… …
17Telegraphy — (from the Greek words (τηλε) = far and (γραφειν) = write) is the long distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes… …
18Telecommunication — A parabolic satellite communication antenna at the biggest facility for satellite communication in Raisting, Bavaria, Germany …
19Shortwave — radio operates between the frequencies of 3,000 kHz (3.000 MHz) and 30,000 kHz (30.000 MHz) [ Tomislav Stimac, [http://www.vlf.it/frequency/bands.html Definition of frequency bands (VLF, ELF... etc.)] . IK1QFK Home Page (vlf.it).] and came to be… …
20TÉLÉCOMMUNICATIONS - Téléphonie et télégraphie — La transmission de la parole est un désir naturel de l’homme, mais il fallut les découvertes du XIXe siècle sur les phénomènes et les lois de l’électromagnétisme pour que la voix humaine puisse être convenablement transmise et reproduite à… …
