UKHAS Wiki

HaTTY is a reduced character set RTTY based protocol with forward error correction developed for use in HABing. Currently this is a theoretical idea. HaTTY uses 4 bits for common numerical data and extends to 8 bits for characters. Only the characters below are permitted and all letters are upper case only.

0000 (NUL)
0001 0
0010 1
0011 2
0100 3
0101 4
0110 5
0111 6
1000 7
1001 8
1010 9
1011 ,
1100 .
1101 (CHARACTER SET1)
	0000 (NUL)
	0001 A
	0010 B
	0011 C
	0100 D
	0101 E
	0110 F
	0111 G
	1000 H
	1001 I
	1010 J
	1011 K
	1100 L
	1101 M
	1110 N
	1111 O

1110 (CHARACTER SET2)
	0000 (NUL)
	0001 P
	0010 Q
	0011 R
	0100 S
	0101 T
	0110 U
	0111 V
	1000 W
	1001 X
	1010 Y
	1011 Z
	1100 *
	1101 $
	1110 NEWLINE
	1111 :

1111 (CHARACTER SET3)
	0000 (NUL)
	0001 -
	0010 +
	0011 SPACE
	0100 %
	0101 !
	0110 (
	0111 )
	1000 @
	1001 #
	1010 ;
	1011 '
	1100 "
	1101 /
	1110 ?
	1111 BELL