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Baudot code




<communications> (For etymology, see baud) A character set predating EBCDIC and used originally and primarily on paper tape.

Use of Baudot reportedly survives in TDDs and some HAM radio applications.

In Baudot, characters are expressed using five bits.

Baudot uses two code sub-sets, the "letter set" (LTRS), and the "figure set" (FIGS).

The FIGS character (11011) signals that the following code is to be interpreted as being in the FIGS set, until this is reset by the LTRS (11111) character.

binary

hex



LTRS

FIGS -------------------------- 00011

03





A





- 11001

19





B





? 01110

0E





C





: 01001

09





D





$ 00001

01





E





3 01101

0D





F





! 11010

1A





G





& 10100

14





H





# 00110

06





I





8 01011

0B





J





BELL 01111

0F





K





( 10010

12





L





) 11100

1C





M





. 01100

0C





N





, 11000

18





O





9 10110

16





P





0 10111

17





Q





1 01010

0A





R





4 00101

05





S





' 10000

10





T





5 00111

07





U





7 11110

1E





V





; 10011

13





W





2 11101

1D





X





/ 10101

15





Y





6 10001

11





Z





" 01000

08





CR



CR 00010

02





LF



LF 00100

04





SP



SP 11111

1F





LTRS

LTRS 11011

1B





FIGS

FIGS 00000

00





[..unused..]

Where CR is carriage return, LF is linefeed, BELL is the bell, SP is space, and STOP is the stop character.

Note: these bit values are often shown in inverse order, depending (presumably) which side of the paper tape you were looking at.

Local implementations of Baudot may differ in the use of #, STOP, BELL, and '.



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Baudot
Baudotbetical order
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bb


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