dot-and-dash

Just then a new set of dot-and-dash symbols began coming in.

I, TOO, DREAM.... 2010

_The protective shell around the artifact is beefed up considerably, and they try something less aggressive -- communicating with the thing using a Drake-style dot-and-dash message.

Analog Science Fiction and Fact 2004

There was, until recently, a delicate needle which swung to and fro with the impulses, and reflected beams of light which, according to their number and the space between them spelled out the message according to the Vail dot-and-dash alphabet.

Steam, Steel and Electricity James W. Steele

This was all changed by Vail, who invented the "dot-and-dash" alphabet, and modified the mechanical action of the instrument necessary for its use.

Steam, Steel and Electricity James W. Steele

Already the type-and-rule and all the symbols and dictionaries had been discarded, and the dot-and-dash alphabet was substituted.

Steam, Steel and Electricity James W. Steele

Fortunately Thad and Allan had long been practicing this exchange of flag signals together; and in this way had become fairly expert in the use of the little telegraphic code that takes the place of the dot-and-dash of the wire process.

The Boy Scouts' First Camp Fire or, Scouting with the Silver Fox Patrol Herbert Carter

Thus the first sketch shows the embryo of the dot-and-dash alphabet, applied only to numbers at first, but afterwards elaborated by Morse to represent all the letters of the alphabet.

Letters and Journals 02] Morse, Samuel F B 1914

He undoubtedly was of great assistance in the early stages of the invention, and for this Morse always cheerfully gave him full credit, but I have proved that he did not invent the dot-and-dash alphabet, which has been so insistently claimed for him, and that his services as a mechanician were soon dispensed with in favor of more skilful men.

Letters and Journals 02] Morse, Samuel F B 1914

In an article which I contributed to the “Century Magazine” of March, 1912, I treated this question at length and proved by documentary evidence that Morse alone devised the dot-and-dash alphabet.

Letters and Journals 02] Morse, Samuel F B 1914

He devised and perfected the dot-and-dash alphabet.

Letters and Journals 02] Morse, Samuel F B 1914