Timewave PK-900, Operating Manual

Page: 212 / 392

CODE 1: US Teleprinter
In Morse, this has no effect; the unit will use the International Morse Code and
NOT the American Morse code. In Baudot and AMTOR, the US teleprinter character
set shown below is used. Users of CODE 1 should be aware of the following:
The US teleprinter code (CODE 1) makes the "!", "$", "'" and "#" characters
available in Baudot and AMTOR. The WRU character, "=" and the "+" characters
are lost when CODE is set to 1. Since there is no "+" character in the CODE 1
character set there should be no way to turn over the AMTOR link and change from
ISS to the IRS. To avoid this problem, the PK-900 sends a FIGS-Z when the "+"
key is pressed in AMTOR and responds to the reception of the "FIGS-Z" "?"
sequence so the direction of traffic can be reversed.
US Teleprinter character set.
LOWER CASE SET UPPER CASE SET
1 2 3 4 5 6 7 8 9 0 - ! # $ & ( )
Q W E R T Y U I O P Q W E R T Y U I O P
A S D F G H J K L ; ' A S D F G H J K L : '
Z X C V B N M , . / Z X C V B N M , . ?
The differences between ITA #2 and US teleprinter codes are listed below:
Baudot ITA #2 U.S.
Character CODE 0 CODE 1
FIGS-D WRU $
FIGS-F | !
FIGS-G { &
FIGS-H } #
FIGS-J BELL '
FIGS-S ' BELL
FIGS-V = ;
FIGS-Z + "
3rd-Q q
Please Note that for U.S. Amateurs, the F.C.C. regulations require Baudot and
AMTOR transmissions follow CCIR Recommendations which require the ITA#2 (CODE 0)
be used. Technically it is illegal to use CODE 1 on the U.S. Amateur bands.
MARS operators and Amateurs outside the U.S. may however find CODE 1 useful.
CODE 2: Cyrillic
This code causes a translation to an artificially extended ASCII, so that all
received characters are converted to single ASCII characters. The character
set is one which we believe to be used presently in the USSR.
The extensions used in Morse reception are shown below:
Morse ASCII English pronunciation
.-.- $71 q YA
---. $7E ~ CH (Morse only)
..-- $60 ' YU
--.- $7D ] SHCH
---- $7B { SH
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