Timewave DSP-232, Operating Manual

Page: 149 / 271

Chapter 8 ASCII and Baudot Operation
The extensions used in Morse reception are shown below:
English
Morse ASCII Pronunciation
.-.-
$71 - q YA
---.
$7E - ~ CH (Morse only)
..--
$60 - ’ YU
--.-
$7D - ] SHCH
---- $7B - { SH
In Baudot and AMTOR, Russian transmitters use a third register to transmit Cyrillic characters in addition to the
LTRS and FIGS. They use LTRS to transmit the Roman alphabet. As LTRS and FIGS characters are used to access
the first and second registers, they use the BLK or NUL character (00) to access the third register. The DSP displays
third-register characters as lowercase
alphabetic characters, and all FIGS characters as in
CODE 0
with the following exceptions:
English
Character
CODE
2 Pronunciation
FIGS-F $7C - | E
FIGS-G $7B - { SH
FIGS-H $7D - } SHCH
FIGS-J $60 - ’ YU
3rd-Q $71 - q YA
If several words end in “OJ”, “OW” or “OGO” the transmission is probably Russian.
There is no separate Baudot combination for the CH character. The Russians use a “4” because the Cyrillic
character for CH resembles a “4.”
It’s safe to leave
CODE set to 2 if you’re not sure which alphabet the transmitting station is using. You’ll be able to
see the message in either alphabet with minimal garbling, then you can set
CODE
to either
0
or
3
.
Another interesting side effect of being able to send and receive in
CODE 2
is that it’s now possible to send and
receive both upper and lowercase text in Baudot and AMTOR modes. To do this, both station must have CODE 2
enabled and both must be running 1991 or later firmware in their DSPs. Other users will see only uppercase
characters and not be aware that anything unusual is happening as the feature merely inserts
NULL
characters at
strategic times. A DSP using CODE 2 in a QSO with a unit in CODE 0 (or any other equipment) will exchange
data in uppercase only, with no adverse effects.
This feature may be advantageous to users of the AMTOR Maildrop who want their messages to be forwarded to
the packet network. The ability to send and receive upper and lowercase characters in AMTOR should improve
message readability when it’s translated to packet and vice versa.
CODE 3 : Transliterated Cyrillic
This code is similar to
CODE 2
, except that some characters are transliterated into English phonetic equivalents for
easier reading.
CODE 2 CODE 3
w V
v ZH
h KH
c TS
~
CH (Morse only)
{ SH
] SHCH
September, 05 8-11