MFJ MFJ-464 - Page 3

MFJ-464 Instruction Manual CW Keyer/Reader
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THE MEMORY
Message Memory ..........................................................................................................35
Preparing Messages.......................................................................................................35
Embedded Commands...................................................................................................36
APPENDICES
Resetting the Keyer .......................................................................................................39
Factory Defaults.................................................................................................39
Message Memory Reset .....................................................................................40
Self Test ........................................................................................................................40
Failure Message Meanings.................................................................................41
Power Down Circuit Test ..............................................................................................41
Jumper Settings .............................................................................................................42
Troubleshooting ............................................................................................................42
Technical Assistance .....................................................................................................42
Morse Code Character Set .............................................................................................43
Signals Used in Other Radio Services............................................................................44
Some CW Abbreviations ...............................................................................................44
Meaning of Q Signals....................................................................................................45
Setup Commands...........................................................................................................46
Schematic......................................................................................................................47
FIGURES
Figure 1: MFJ-464 Front Panel .......................................................................................2
Figure 2: MFJ-464 Back Panel .......................................................................................3
Figure 3: Qwerty Keyboard Layout ................................................................................4
Figure 4: Dvorak Keyboard Layout ................................................................................5
Figure 5: MFJ-464 Flow Chart and Button Action Chart.................................................7
Figure 6: Code Weight..................................................................................................11
Figure 7: Keying Delay and PTT Hang Time Timing ...................................................13
Figure 8: Rise Time and Decay Time Timing ...............................................................13
Figure 9: MFJ-464 Message Memory Structure ............................................................35