MFJ-495 Memory Keyer Instruction Manual
© 2001-2009 MFJ Enterprises, Inc. 41
Appendices
Resetting the Keyer
Each time the keyer is turned off, the microprocessor powers down and saves all memories and
configurations to non-volatile memory ready to be used the next time the unit is turned on again. If the
keyer in not working properly, even on initial power on, try resetting to the factory defaults.
Factory Defaults
The unit is shipped with the following default settings for all users 1 to 4:
• Main Menu [1A][2A][3A][4A]
• Setup Menu Speed Ratio
• Memory Bank A
• Speed Control Range 13 to 39 WPM
• Speed Ratio 3-to-1
• Overall Speed 13 WPM
• Farnsworth off
• Weight 50% constant
• Character Space 3 units
• Word Space 7 units
• Keying Compensation 0 msec
• Keying Delay 0 msec
• PTT Hang Time 1000 msec
• Tone Frequency 701 Hz
• Serial Number 0001
• Leading Zeroes on and send as O (dah-dah-dah)
• Other Zeroes send as 0 (dah-dah-dah-dah-dah)
• Nines send as 9 (dah-dah-dah-dah-dit)
• Iambic Mode A
• Reverse Mode off (dot to tip, dash to ring)
• Paddle Mode automatic
• Monitor Mode on
• Output Mode on
• Queue Mode on
• Pulse Tune Speed 75 WPM
• Pulse Tune Weight 13% duty cycle
• Quick Speeds 13, 15, 18 and 20 WPM
To reset the keyer to these defaults:
1. Skip to step 6 if you want to reset the current user; otherwise continue with step 2.
2. Turn on the power to the keyer.
3. Press and hold the Menu button for two seconds to go to the setup menus.
4. Press Previous or Next button to go to the User menu.
5. Press Up or Down button to select the user to be reset to factory defaults.
6. Turn off the power to the keyer.
7. Press and hold both the Menu and F2 buttons while turning the power on.
8. Release the buttons when DEFAULTS RESET appears on the display.
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