Timewave DSP-232, Operating Manual, Page: 152 / 271

Chapter 8 ASCII and Baudot Operation
“ n ” Is the hex representation ($01-$7F) of the character that causes the
AAB
string to be sent in the middle of
transmitted text.
If you want to send your own
AAB
string for identification during a transmission, simply enter the
HEREIS
character.
Id Immediate Command
Mode: AMTOR/ASCII/Baudot/Packet Host: ID
In AMTOR, the
ID
command acts like the
RCVE
command only it adds a Morse ID before going back to receive.
In ASCII and Baudot, the
ID
command causes a Morse ID to be sent much like an immediate version of the CWID
character ( CTRL-F ). Because the ID command is immediate, the message “
Transmit Data Remaining
” will
be displayed if any unsent data remains in the transmit buffer. To clear the data from the buffer, enter TC at the
cmd:
prompt.
In packet,
ID
is an immediate command that sends a special identification packet. The
ID
command allows you to
send a final identification packet when you take your station off-the-air. ( HID must also be set ON ). The
identification consists of a UI-frame, with its data field containing your
MYALIAS
(if it’s entered),
MYCALL
, and
the word “digipeater”. The ID packet is sent only if your DSP has digipeated any transmissions since the last
automatic identification.
Lock Immediate Command
Mode: Morse/Baudot/AMTOR/FAX Host: LO
AMTOR and Baudot:
LOCK
is used to force a LETTERS shift in the received data. This can be helpful if noise has
garbled the LTRS character causing FIGURES to be displayed.
Morse:
LOCK
instructs the DSP to lock its timing circuits to the current measured speed of a received Morse
signal; This may improve the DSPs ability to decode those signals in the presence of high noise levels. To
“un-Lock” the Morse speed and allow the DSP to track the received signal automatically, enter an
R
or
MO in the Command mode, followed by a ( RETURN ) .
MARsdisp ON | OFF Default: OFF
Mode: Baudot and AMTOR, RTTY Host: MW
OFF The DSP operates normally in Baudot and AMTOR (default).
ON
The DSP translates received LTRS characters to a (
CTRL-O
), and FIGS characters to a (
CTRL-N
) then
sends these to the terminal.
MARSDISP enables the Baudot and AMTOR operator to detect and display every character, including LTRS and
FIGS sent by the other station.
ACRDISP
and
ALFDISP
may be turned off to prevent extraneous (
RETURN
)s and
LFs from being sent to the display. If this data is retransmitted, ACRRTTY should be 0 , and ALFRTTY OFF . The
(
CTRL-O
) and (
CTRL-N
) characters will send LTRS and FIGS, respectively.
MFilter n1 [, n2 [, n3 [, n4 ]]] Default: $80
Mode: Morse, Baudot ASCII, AMTOR, PACTOR and packet Host: MI
“
n ” 0 to $80 (0 to 128 decimal) specifies an ASCII character code.
(Up to four characters may be specified separated by commas.)
Use
MFILTER
to select up to 4 characters to be “filtered” or excluded from Morse, Baudot, ASCII, AMTOR,
PACTOR and monitored packets with parameters n1 - n4 , the ASCII codes for the characters you want to filter. The
special value of $80 (default) filters all characters above $7F and all control-characters except (
RETURN
) ($0D),
LF ($0A), and ( TAB ) ($09).
8-14 September, 05