Specifications

If you are using a terminal, simply type "ASCII" or "AS" from the
Command Mode followed by the <Enter> key to enter the ASCII mode.
The PK-900 responds by displaying the previous mode:
Opmode was BAudot
Opmode now AScii
Your PK-900's front panel LCD Status display will show that you are in
the ASCII mode on Radio Port 1 and the COMMAND LCD will be on.
The following parameters are the most common settings for HF ASCII
operation. Check the parameters and make sure they are set as follows:
ABAUD 110 (or whatever speed you wish)
RXREV OFF
TXREV OFF
MODEM 2 (or 10 for 300 baud operation)
Some VHF Bulletin Boards and MSOs use ASCII at 110 and 300 bauds,
most commonly on two meters. Be sure that you have selected the
appropriate modem. When you change mode to ASCII, the QRTTY command
will select a modem that is correct for Baudot but may not be
appropriate for 300 baud ASCII.
6.6.2 ASCII RTTY Operating Tips
Follow the general operating procedures shown in the sections above
for Baudot RTTY. As in Baudot operation, you can step the system
through all the available receiving speeds.
The following "Special Function Characters" and immediate commands are
included for ASCII RTTY operating convenience.
Immediate Commands From the Command Mode:
"R" Switches system to receive mode.
"X" Switches system to transmit mode and forces immediate
entry into Converse mode.
"K" Go to CONVERSE Mode in order to load the Transmit type
ahead buffer.
Special Function Characters embedded in transmitted text:
<CTRL-B> Sends AAB string as a HEREIS message.
<CTRL-D> Shuts off transmitter after sending character buffer.
<CTRL-E> Sends "Who Are You" request to distant station.
<CTRL-F> Sends call sign in Morse and shuts off the transmitter.
<CTRL-T> Sends the Time if the DAYTIME clock has been set.
6.6.3 Changing ASCII Baud Rates
Assume you've been receiving at 110 bauds and wish to increase the
baud rate in steps. From the Command mode, type AB U followed by an
<Enter>. The PK-900 responds with:
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