MFJ-493 Instruction Manual
6
Keyer Terminal Operation
The Keyer Terminal mode allows a computer to talk to your MFJ-493. All code sent from the paddle
and keyboard is echoed to the Keyer Terminal. All commands are accessible through the Keyer Ter-
minal.
Your computer will need a terminal program to talk to the keyer. The program should be capable
of uploading and downloading ASCII text files. Any good commercial or freeware terminal program
should be satisfactory for use with this keyer. If you would like to customize your keyer terminal
you can write your own terminal program for your computer as a learning experience.
After you have connected the MFJ-493 to the serial port of your computer with the correct cable
(see the section on connections) turn on your computer and load your terminal program. Set the
baud rate to 1200 and set data bits to 8, parity to none, and stop bits to 1. Now turn on your MFJ-
493. You should see a sign on message. A correct sign on message will show that everything is
working properly between the computer and keyer. If you do not get a sign on message recheck
your terminal program and serial port cable pin configurations. If you get extra linefeeds you may
need to set your terminal program to not add linefeed to carriage returns.
After the sign on message you are ready to send with the keyer. All characters sent to the keyer
must be in uppercase to be sent over the air. Lowercase is reserved for keyer commands. Turn
caps lock on and type in a message.
To make a special prosign with the keyer terminal, begin and must end with the prosign with "\". If
you leave off the last slash all the intercharacter spacing will be removed. Example: to make AA,
type in \AA\ .
Configuration
The MFJ-493 has a special feature to allow the user to view the configuration on the keyer termi-
nal screen. To view the configuration type "[show-config]". The keyer configuration will appear on
the screen.
You can also write a file that can be sent to the keyer with all the configuration information your
keyer needs. Several files can be saved with different configurations to allow quick changing of pa-
rameters. The file is saved as an ASCII text file and uploaded to the MFJ-493 with your terminal
program's text upload (send text file] command. The file must have "{sconfig:" in front of the set-
tings and end with "}". For a complete description of the file format see the table on page 19.
On-Line Help
While you are using your keyer terminal you can access the on-line manual. If you type in [help]
you will get a list of commands. Type [help-"command"] for help on a certain command. Type
"{help-list]" for a list of commands
Summary of Contents for Memory Keyer MFJ-493
Page 1: ......
Page 26: ...MFJ 493 Instruction Manual 23 MFJ 493 Schematic...
