Entry 1 of 2 1 : formed of or as if of alternating dots and dashes run a dot-and-dash line across the sheet 2 : consisting of or using an alphabet made up of dots and dashes as signals for communicating secret conversations by means of long and short muscular movements in the Morse dot-and-dash system dot-and-dash.

Start your free trial today and get unlimited access to America's largest dictionary, with: More thanwords that aren't in our free dictionary Expanded definitions, etymologies, and usage notes Advanced search features Ad free! Join Our Free Trial Now! Accessed 25 Dec. Comments on dot-and-dash What made you want to look up dot-and-dash? Please tell us where you read or heard it including the quote, if possible.

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Test your knowledge of the words of the year. Can you spell these 10 commonly misspelled words? Do you know the person or title these quotes desc Login or Register. Save Word. Love words? Learn More about dot-and-dash. Statistics for dot-and-dash Look-up Popularity. Get Word of the Day daily email! Test Your Vocabulary. Nice Naughty. Need even more definitions? The awkward case of 'his or her'. Take the quiz Spell It Can you spell these 10 commonly misspelled words? Take the quiz Citation Do you know the person or title these quotes desc Play the game.The signals were sent by cutting up the continuous hum in the telephone into long and short periods in accordance with the Morse code by manipulating the key in the primary circuit.

In this manner it was possible to hear a Morse code dash or dot in the telephone. Hence according as the trains of oscillations are long or short so is the sound heard in the telephone, and these sounds can be arranged on the Morse code into alphabetic audible signals. Very briefly stated, his method consists in sending out a group of wave trains at certain irregular but assigned intervals of time to constitute the simplest signal equivalent to a dot in the Morse codeand a sequence of such trains, say three following one another, to constitute the dash on the Morse code.

Home Dictionary Definitions Morse-code.

Morse-code meaning. A character code represented by dots and dashes short and long pulsesoriginally used to send messages by telegraphlater by flashes of light or by radio. Any of several codes used for transmitting messages in which letters of the alphabet and numbers are represented by various sequences of dots and dashes or short and long signals, especially the international Morse code.

A code developed by Samuel Morse used for transmitting messages in which letters of the alphabet and numbers are represented by various sequences of written dots and dashes, or short and long signals such as electric tones or voltages.

Morse code was used extensively in telegraphy. In a format that has been standardized for international use, it is still sometimes used for long distance radio communication. The first widely accepted standard coding scheme for digital data communications.

Morse code was invented by Samuel Morse sometime prior to for use with the electric telegraph. Friedrich Clemens Gerke invented the International Morse Code in out of necessity, as some of the spaces in letters created difficulty in radiotelegraphy.

International Morse code was standardized by the International Telegraph Union ITU in and was widely used in radiotelegraphy through the early twentieth century.

Morse code was the primary communication code for many years, until Emile Baudot invented the Baudot Distributor in the s. International Morse code remains widely used by amateur radio operators, or hams, although proficiency is no longer required. Morse code uses series of short and long marks in the form of dots short marks known as dits to radio operators and dashes long marks, or dahswith spaces between them, to represent letters, numbers, punctuation marks, and procedural signals prosigns.

The length of the spaces varies, with a short space between dots and dashes within a character, a longer space between characters, an even longer space between words, and a yet longer space between sentences. In order to speed transmission, the fewest number of dots and dashes represent commonly used letters e. Commonly used words are abbreviated e. Table M-1 provides the International Morse Code for English letters, numbers, and select punctuation marks and prosigns.

Note: The sign, a combination of a and c, was added in in order that telegraphers could send e-mail addresses. There are extensions to International Morse Code to accommodate letters with diacritical marks used in non-English alphabets. See also dashdothamITUand telegraph. A character code invented by Samuel Morse that is represented by the duration of a single tone. Written as dots, dashes and spaces, the first Morse code message was sent in over a newly constructed telegraph line between Baltimore and Washington.

A variation of the original was made by Friedrich Gerke inwhich evolved into the International Morse Code.

what means dash dot dot

Dits and Dahs - Actually Hear Them! The code was based on English; E and T being the most frequently used letters, hence one dot was assigned to E and one dash for T see table below. Dots and dashes are vocalized as "dit" and "dah," and the timing is one dit between each dit and dah, three dits between letters and seven dits between words.

Try catching the rhythm. Given the secret message at the same time "I just saved a bunch of money on my car insurance," the Morse code operator tapped all the words to his colleague across the stage before the young texter could finish typing the sentence.

See Gmail Tap and telegraph. International Morse Code A. O 9 It uses short and long pulses - tones or lights - to represent letters and numbers. Probably the most well known Morse Code Message is the one made up of three short pulses, then three long pulses, then three short pulses again. Or "dot dot dot, dash dash dash, dot dot dot. Officially, the short and long pulses are called "dits" and "dahs", but we like to call them "dots" and "dashes" anyway. Samuel Morse and Alfred Vail also developed a telegraph machine, which is what is used to send Morse Code messages.

A telegraph operator sits at the machine and taps out long and short taps to represent the letters of the message he's sending. I imagine it must take a lot of concentration and a very good memory to keep track of all those dots and dashes! The very first telegraph message ever sent was a short one, but very interesting.

The message was: "What God Hath Wrought". You may want to try putting that message in the encoder to see what it looks like! Here's a list of the letters and numbers, as well as the series of dots and dashes for each one.

Before you look at it, think about this. In order to save time, the shortest sequences should be used for the letters which are most commonly used, right? So which letters do you think are "dot" and "dash"? Check the list below to see if you're right! The Problem Site. Quote Puzzler.

Tile Puzzler. Loading profile Logged in as:. Password recovery.This doesn't mean anything. Dash dash -- is the letter M. Single dash - is the letter T. Therefore the Morse code is MTT. That would be: dot dot dot dash.

If you mean like in the means of S-O-S, Which is like a universal emergency phrase. In International Morse Code that translates to "mmtm". This is the most famous Morse signal. Dot dot dot Dash dash dash is the letter O. Therefore your code is SOS.

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SOS came into existence because it is the fastest and easiest combination of letters that can be signalled in code when under panic or distress, hence why SOS became the international distress signal. In English, it is the spoken form of the dash in Morse code; it is also the symbol for the decaHenry daH a unit of electrical inductance. Three dashes in Morse Code mean the letter O. C Ning. The radio call SOS means nothing in particular.

what means dash dot dot

It was chosen as a distress call because it was quick and easy for anybody to remember the Morse code for it: dot dot dot dash dash dash dot dot dot.

Can't tell from the dots and dashes. Where are the dividing points? Individually the dots and dashes have no meaning. It is only in the combinations defined in Morse code that there is meaning, the various characters of the code which can be used to send messages.

Not necessarily. But it does indicate 1 someone has has the "talent" to recognize sounds and associate it with letters or words 2 someone who was determined enough to learn Morse Code. You would REALLY have to be interested in Morse Code to go through the time and effort to learn it well, and you do need to use it from time to time to keep from forgetting it. Using it will keep your skills up.

what means dash dot dot

I am still working with learning Morse Code fully, and operate regularly on Ham Radio with it There are a lot of Ham Radio operators that very much enjoy the mode and find a lot of satisfaction just using Morse Code, I am one of them. Partly for the "magic" of it, mostly for the fact the "better operators" are the ones using Morse Code.

CW and Morse Code are not the same.

White Coats And Limousines - Dot Dot Dash (Official Music Video)

Morse Code is the series of dots and dashes that make up the letters and numbers, etc CW is the method by which Morse Code is sent!Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes or dits and dahs.

International Morse Code, also known as Continental Morse Code, [4] encodes the 26 English letters A through Z, some non-English letters, the Arabic numerals and a small set of punctuation and procedural signals prosigns.


There is no distinction between upper and lower case letters. The dot duration is the basic unit of time measurement in Morse code transmission. The duration of a dash is three times the duration of a dot. Each dot or dash within a character is followed by period of signal absence, called a spaceequal to the dot duration. The letters of a word are separated by a space of duration equal to three dots, and the words are separated by a space equal to seven dots. Thus the most common letter in English, the letter "E", has the shortest code: a single dot.

Because the Morse code elements are specified by proportion rather than specific time durations, the code is usually transmitted at the highest rate that the receiver is capable of decoding. The Morse code transmission rate speed is specified in groups per minutecommonly referred to as words per minute. Morse code is usually transmitted by on-off keying of an information-carrying medium such as electric current, radio waves, visible light, or sound waves.

Morse code can be memorized, and Morse code signalling in a form perceptible to the human senses, such as sound waves or visible light, can be directly interpreted by persons trained in the skill.

Morse Code

Because many non-English natural languages use other than the 26 Roman letters, Morse alphabets have been developed for those languages. In an emergency, Morse code can be generated by improvised methods such as turning a light on and off, tapping on an object or sounding a horn or whistle, making it one of the simplest and most versatile methods of telecommunication.

The most common distress signal is SOS — three dots, three dashes, and three dots — internationally recognized by treaty. Early in the nineteenth century, European experimenters made progress with electrical signaling systems, using a variety of techniques including static electricity and electricity from Voltaic piles producing electrochemical and electromagnetic changes. These experimental designs were precursors to practical telegraphic applications.

Pulses of electric current were sent along wires to control an electromagnet in the receiving instrument. Many of the earliest telegraph systems used a single-needle system which gave a very simple and robust instrument. However, it was slow, as the receiving operator had to alternate between looking at the needle and writing down the message.

In Morse code, a deflection of the needle to the left corresponded to a dot and a deflection to the right to a dash. The American artist Samuel F.

Morsethe American physicist Joseph Henryand Alfred Vail developed an electrical telegraph system. It needed a method to transmit natural language using only electrical pulses and the silence between them.

AroundMorse, therefore, developed an early forerunner to the modern International Morse code. William Cooke and Charles Wheatstone in Britain developed an electrical telegraph that used electromagnets in its receivers. They obtained an English patent in June and demonstrated it on the London and Birmingham Railway, making it the first commercial telegraph. Carl Friedrich Gauss and Wilhelm Eduard Weber as well as Carl August von Steinheil used codes with varying word lengths for their telegraphs.

InCooke and Wheatstone built a telegraph that printed the letters from a wheel of typefaces struck by a hammer. The Morse system for telegraphywhich was first used in aboutwas designed to make indentations on a paper tape when electric currents were received. Morse's original telegraph receiver used a mechanical clockwork to move a paper tape. When an electrical current was received, an electromagnet engaged an armature that pushed a stylus onto the moving paper tape, making an indentation on the tape.

When the current was interrupted, a spring retracted the stylus and that portion of the moving tape remained unmarked. Morse code was developed so that operators could translate the indentations marked on the paper tape into text messages. In his earliest code, Morse had planned to transmit only numerals and to use a codebook to look up each word according to the number which had been sent.

However, the code was soon expanded by Alfred Vail in to include letters and special characters so it could be used more generally.

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what means dash dot dot

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