signal in morse (code)
121Heliograph — A Heliograph (from the Greek helios (Lang el| Ἥλιος), meaning sun , and (γραφειν) = write) is a wireless solar telegraph that signals using Morse code flashes of sunlight reflected by a mirror. The flashes are produced by momentarily pivoting the …
122Harold Bride — Pour les articles homonymes, voir Bride. Harold Sydney Bride Naissance 11 janvier 1890 …
123Émetteur à ondes amorties — Histoire des techniques d émission radio L histoire des techniques d émission radio commence avec les premières expériences de Hertz, se poursuit avec les découvertes d Édouard Branly, les travaux et essais de Guglielmo Marconi, de Camille Tissot …
124Shortwave — 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… …
125Detector (radio) — Passband modulation v · d · e Analog modulation AM · …
126Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …
127List 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,… …
128Procedure word — Procedure words or prowords are words or phrases limited to radio telephone procedure used to facilitate communication by conveying information in a condensed standard form. [1] Contents 1 Universal prowords 1.1 SEND …
