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 MFJ-452 CW Keyboard

                                                                                Instruction Manual

6

When choosing the parameter in which you wish to operate, you must decide what and how you want the
codes sent.  Some examples of setting up the parameters are as follows:

example:

1000101 setting for parameter (Farnsworth mode, puntuation and numeric character)

example:

1101000 (Farnsworth, Random word length 1-8 characters, alphabetic charater)

example:

1100001 (Farnsworth, Random word length 1-8 characters, numeric character)

example:

0001000 (Alphabetic character)

example:

0101000 (Random word length, alphabetic character)

The examples given are some of the ways you can set your parameters.  By deciding if you want numbers,
letters, punctuations, prosigns, or all, you can set your parameter to do so.  You must remember to enter
random code mode to activate the setting of your parameter (press 

F9,

 

"R",

 then press 

Enter

).

Keyboard Commands

Message Memories

The function keys 

F1 

through 

F8

 are used to store and send messages.  The

 Alt

 key is used with a

function key to store a message.  The function key is then used alone to send the stored message.  See the

MESSAGE MEMORIES

 section for more details.

Command Mode

The command mode is accessed by selecting the 

F9

.  This selection is followed by a one-character

keyboard command.

Code WPM Speed

The speed of the code is accessed through the 

F10

 key.  The speed can then be varied using the up and

down arrow keys or direct two-character entry.  Press ESC to exit.

Output Tune

An output tune is activated by selecting 

F11

.  A constant tune is sent to the antenna and tuner.  Press 

Esc

to exit.

Serial Number Decrements

The 

F12

 command decrements the serial number.  This command should be selected as a message is

being sent.  The keyer will echo "-.." or "D" for every decrement in the serial number.

Paddle Operation

The paddle input allows iambic keyer operation.  The speed, weight, and tone for the paddle are the same
as that for the keyboard.  All iambic paddle parameters are controlled by the keyboard.

Summary of Contents for MFJ-452

Page 1: ...ck of the keyboard to the A position Using an XT style keyboard or turning a switchable keyboard to X mode may damage both the keyboard and the MFJ 452 This unit will function only with AT compatible...

Page 2: ...from the point where it was interrupted Adjusting Code Parameters Note The output key is disabled during parameter changes so that no erroneous code is transmitted Code WPM Speed Code speed is set usi...

Page 3: ...se the designated function key F1 F8 you want to remove F2 in this case Press the Alt that function key then Enter without typing or keying anything into memory The message is now removed Embedded Com...

Page 4: ...wn arrows to vary sidetone Press Esc to exit W This command enables the code weight settings mode An alternating dot and dash signal is produced and the signal is modified with the keyboard by using t...

Page 5: ...s disengaged L Toggles between 5 character word length or random word length from 1 8 characters The keyer signals OK after the command is entered The keyer s default setting sends 5 character words i...

Page 6: ...es The function keys F1 through F8 are used to store and send messages The Alt key is used with a function key to store a message The function key is then used alone to send the stored message See the...

Page 7: ...601 323 5869 You will be best helped if you have your unit manual and all information on your station handy so you can answer any questions the technicians may ask You can also send questions by mail...

Page 8: ...D D 8 8 E E 9 9 F F 0 0 G G AAA H H MIM I I KR J J OS K K WG L L AF M M DN N N IMI O O DU P P _ _ IQ Q Q BT R R AR 1 S S SN 2 T T Error U U Paragraph AL V V SX W W KA 3 X X K K 4 Y Y AS 5 Z Z SK 6 1 1...

Page 9: ...elease Alt Also used in conjunction with keys F1 F8 to store message memories Alt Print Screen Plays the EPROM code version number of your unit Backspace Deletes the last character entered into messag...

Page 10: ...Random numeric characters on off P Random punctuation characters on off G Random prosign L Random 1 8 character group length on off off denotes fixed 5 character group length C Fixed 6 character sets...

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