CCIR 476
CCIR 476 is a character encoding used in radio data protocols such as SITOR, AMTOR and Navtex. It is a recasting of the ITA2 character encoding, known as Baudot code, from a five-bit code to a seven-bit code. In each character, exactly four of the seven bits are mark bits, and the other three are space bits. This allows for the detection of single-bit errors.
Character set[]
In these tables, the hexadecimal code values are converted from a binary representation, with 1 being mark, 0 being space, and the most significant bit given first. The international version of ITA2 is used here.
CCIR 476 (Letter set)[1] | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
0x | SIA | |||||||||||||||
1x | J | F | C | K | ||||||||||||
2x | W | Y | P | Q | ||||||||||||
3x | SIB | G | FIGS | M | X | V | ||||||||||
4x | A | S | I | U | ||||||||||||
5x | D | R | E | N | LTRS | SP | ||||||||||
6x | Z | L | RPT | H | BLK | LF | ||||||||||
7x | O | B | T | CR |
CCIR 476 (Figure set)[1] | ||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
0x | SIA | |||||||||||||||
1x | BEL | ! | : | ( | ||||||||||||
2x | 2 | 6 | 0 | 1 | ||||||||||||
3x | SIB | & | FIGS | . | / | = | ||||||||||
4x | - | ' | 8 | 7 | ||||||||||||
5x | ENQ | 4 | 3 | , | LTRS | SP | ||||||||||
6x | + | ) | RPT | £ | BLK | LF | ||||||||||
7x | 9 | ? | 5 | CR |
References[]
Categories:
- Character encoding
- Character sets
- Telegraphy
- Amateur radio