edge and right edge LEDs of the KAM’98 bargraph light equally. At this point, if
the signal is indeed a RTTY 45 signal, you should see copy coming across your
computer screen.
To quit copying RTTY, enter the character sequence <Ctrl+C>X - that is, hold
the control character while typing the letter C, let up on both of them, and then
type the letter X. The command prompt (cmd:) should reappear on your screen.
You are now ready to view another mode.
Pactor Monitoring
To copy Pactor, enter the following command at the “cmd:” prompt, as follows:
cmd: PTLISTEN <return>
The KAM’98 is now set to listen to both parts of a Pactor ARQ exchange. Tune
up and down the dial until you hear a Pactor exchange in progress. Again, to tune
in the signal, adjust your radio dial until the left most and right most bargraph
LEDs light. At this point you should begin to see copy on your computer screen.
To quit copying Pactor, enter <Ctrl+C>X.
As before you went to Pactor, the command prompt should reappear on your
screen. You are back at the starting point, in Packet mode.
How to Transmit in RTTY and Pactor
While we won’t transmit right now, while in these modes all you have to do to
transmit is enter the <Ctrl+C>T sequence.
The KAM’98 is then placed in data transmit mode and you may type your mes
-
sage. At any time, you may enter a control-C and E combination, and this action
will return you to receive mode just as soon as the data you have typed is all
transmitted.
Switching to 1200 baud Packet (and back)
Now that you have seen how to copy some HF signals, let’s enter the commands
necessary to switch the KAM’98 modem so that it will copy VHF packet frames
How to Transmit in RTTY and Pactor Getting Started
KAM’98 v 8.3 109 User’s Guide
To Next Page
Loading...