7.4 AMTOR Operating Tips
The following "Function Keys" and immediate commands are included for
AMTOR operating convenience.
Immediate Commands from the Command Mode:
"ARQ <SELCALL>" Starts Mode A selective call and forces Converse
"FEC" Starts Mode B transmission and forces Converse
"SELFEC <SELCALL>" Starts Selective Mode B transmission
"R" Stops sending immediately, forces AMTOR Standby,
clears the transmit buffer of all remaining data
"AM" Stops transmission, forces AMTOR Standby, clears
the transmit buffer of all remaining data
"AL" Forces re-synchronization in ALIST (AMTOR Mode A
Listen)
"L" Forces LETTERS case
"N" Forces FIGURES case
Function Keys embedded in transmitted text:
<CTRL-B> Sends your AAB string as a HERE-IS message
<CTRL-D> Stops sending when the transmit buffer is empty
<CTRL-E> Sends a "Who Are You" request to the other station
<CTRL-F> Sends call sign in Morse and shuts off transmitter
<CTRL-N> Sends FIGURES character
<CTRL-O> Sends LETTERS character
<CTRL-T> Sends the TIME if the DAYTIME clock has been set
7.4.1 ARQ Break-In (ACHG Command)
In Mode A (ARQ), when you're the "Information Receiving Station," you
can use the "ACHG" command to interrupt the distant station's comments.
As the "Information Receiving Station," you normally rely on the
distant station to send the "+?" to "change-over" at the end of his
comments. ACHG is a command that forces both systems to reverse the
"Information Receiving" and "Information Sending" status of the link.
o Use the ACHG command only when really needed to interrupt the
distant station.
7.4.2 Entering Your Auto-AnswerBack (AAB)
AMTOR allows you to request the identity of the station you are
conversing with by sending your PK-232 the <CTRL-E> character. This
causes the PK-232 to send a FIGS-D request to the other station.
For this reason, you should set your own Auto-AnswerBack (AAB) message
to "DE YOUR-CALL YOUR-MYSELCAL YOUR-MYIDENT". If you turn ON your
own WRU command, your PK-232 will automatically send the AAB message
when another station requests your identity, and then stop sending.
7.4.3 Speed Change Not Permitted
In accordance with FCC Part 97.69 and international regulations, AMTOR
is operated at 100 bauds. The PK-232 does not permit any other speed.
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