Kantronics KPC-4 - Page 57

To enter the Mode AAMTOR operation you use the AMTOR command. Using the
command
"AMTOR
xxxx[xxx]"
(where
xxxx[xxx]
is
a
selcal)
will
cause
your
KAM
to
attempt
to
establish
an
ARQ
link
to
the
station
with
SELCAL
xxxx[xxx].
If
you
simply
enter
"AMTOR"
you
will
enter
a
standby
receive
mode,
in
which
you
will
be
able
to
receive
FEC
transmissions,
or
your
unit
will
respond
to
an
ARQ
call.
You
can
enter
the
_FEC transmit mode from this standby condition, enabling you to call CQ by using the
Ctrl-C T directive. This puts your KAM in FEC transmit, and any characters you type
will now be sent in FEC Mode. After you've entered your CQ message, you can use
the Ctrl-C E directive, which will return you to the AMTOR standby mode after the
transmit buffer is empty, allowing you to respond to an ARQ call answering your CQ.
For instance, to enter AMTOR and call CQ, the sequence would be:
cmd: AMTOR
Ctrl-C T
CQ CQ CQ de WK5M WK5M WK5M SELCAL WWKM WWKM WWKM
CQ CQ CQ de WK5M WK5M WK5M SELCAL WWKM WWKM WWKM
CQ CQ CQ de WK5M WK5M WK5M SELCAL WWKM WWKM WWKM
Ctrl-C E
If you then receive a call, your transmitter would begin responding automatically to
the call, and you would be the Slave station (since you did not initiate the link). If the
station linked to you using the CCIR 625 format, you will receive a message indicating
his selcal. The station that called you is called the Master, and is automatically the
Information Sending Station (ISS). Any data he types will appear on your screen,
and the TNCs handle requests for retransmission of incorrectly received data auto-
matically. When he is ready to have you transmit data to him, he would enter the
changeover sequence, which consists of a FIGURES shift, +?. You then become the ISS
and the other station is the Information Receiving Station (IRS). You now type your
message to the other station, and when you are finished and want him to respond, you
send the changeover sequence. Since the KAM automatically inserts the FIGURES
shift for you, all you need to type is the +? to perform the changeover.
While you are the IRS, it may at times be necessary to "seize" the link from the other
station and become the ISS. In order to do this, while receiving, use the Ctrl-C T
directive. This will send a special sequence to the other station and cause a changeover
to occur.
The KAM also supports the WRU (Who aRe yoU) function. This function causes the
other station to send a pre-defined string indicating information about his station. In
the KAM, this information is entered with the WTEXT command. To initiate the WRU
function, use the Ctrl-W directive while you are the ISS and then the remote station
will send his information to you if his TNC also supports this function.
After you've finished your conversation with the other station, you may return to the
Command Mode (cmd:) by issuing the Ctrl-C X directive. This will terminate the link,
and return you to Packet Mode operation.
AMTOR 49
© Copyright 1989, 1990, Kantronics, Inc. All Rights Reserved. .
Duplication of this manual or the firmware without Aug. 13, 1990 , Version 3.0
permission of Kantronics, Inc. is prohibited. Operations Manual