Kantronics KPC-4 - Page 49

2)
Ctrl-C X Leave current mode and return to cmd: prompt (packet)
Ctrl-C n where nis a number (0-9) Changes current baud rate according to the
following chart:
n BAUD RATE WPM
1 45 60
2 50 67
3 57 75
4 75 100
5 100 132
6 110 147
7 150 200
8 200 267
9 300 400
0 rbaud/ascbaud
Now that you've entered the desired mode (let's assume RTTY), we'll walk through a
sample of RTTY operation. The same procedures will apply to ASCII operation. First,
let's see how we can call CQ in RTTY. Since we entered the RTTY Mode without any
other parameters, we are operating at 45 baud (default and most commonly used) with
a 170 Hz shift (again default and most common).
Next, we must place our transmitter into the transmit mode and enter the CQ
message. To do this, we first enter a Ctrl-C T directive, which places the transmitter
in transmit. Then we would type:
RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRY
CQ CQ CQ DE WK5M WK5M WK5M
CQ CQ CQ DE WK5M WK5M WK5M
CQ CQ CQ DE WK5M WK5M WK5M KKK
After we've typed this, we need to return to receive mode, but we want to be sure
that the entire message is transmitted (the transmit buffer is empty) so we'll use the
Ctrl-C E directive.
When the transmitter turns off, we now tune the receiver, looking for a station
answering our CQ. Tuning RTTY and ASCII signals is simplified by use of the LED
bargraph. While observing this indicator system, tune for an alternate blinking of the
end segments of the bargraph. Once the station is tuned in, the terminal will begin to
display the characters being received.
When the other station indicates that it is our turn to transmit, we would again enter
the Ctrl-C T directive to again begin transmitting. The data we type will now be sent
over the air to the receiving station.
At the point we are ready to end the QSO, we simply shut down the transmitter using
the Ctrl-C E directive, and the QSO is ended. We can return to the command prompt
(cmd:)
and
thus
the
Packet
Mode
of
operation
by
entering
the
directive
Ctrl-C
X.
Perhaps you would prefer to just monitor RTTY transmissions, looking for someone
else who may be calling CQ. After you have entered the RTTY Mode, simply start
tuning (you're already in the receive mode). Again tune the receiver slowly, until you
receive the alternate blinking ends of the bargraph tuning indicator. If you fail to
obtain
this
indication
try
selecting
a
different
shift.
If
you
still
fail
to
obtain
this
indication
using
the
standard
shifts,
the
station
may
be
using
non-standard
tones
RTTY/ASCIl 41
© Copyright 1989, Kantronics, Inc. All Rights Reserved. z
Duplication of this manual or the firmware without Version 2.85
permission of Kantronics, Inc. is prohibited. Operations Manual