Setting the Upper LCD Display
Setting the Time Zone
With the MFJ-121 in the normal time display mode, move the slide switch on the back of the clock
to the "TIME" position. Then press the "SET" button. The upper LCD will show "-0 HR", "-1
HR", etc. (It will be "-0 HR" if no time zone was previously selected). Select the appropriate time
zone by pressing the A button to increase the number. Please refer to the table below for setting the
time zone of your area in the USA.
Time Zone
Standard Time Setting
Pacific
"-8 HR"
Mountain
"-7 HR"
Central
"-6 HR"
Eastern
"-5 HR"
GMT
"-0 HR"
Note: The number following the "-X HR" indicates the number of hours difference from
GMT.
After setting the appropriate time zone, press the "SET" button again to proceed with setting the 12
HR or 24 HR time Display
Setting 12 HR or 24 HR Display
The LCD should now display a flashing" 12" or "24" and "H" that is not flashing. Press the A
button change between 12 HR and 24 HR time display mode. After selecting the time display
mode, press the "SET" button to proceed to Setting the Time Manually.
Setting the Time Manually
Since the unit works on receiving the time radio signal, there may be locations that the signal is weak
and cannot he properly received. Under such conditions, the radio signal mark will not
display any curves. Try to rotate the unit or place it in another location to achieve better reception.
Re-install the batteries or press the "TEST" button to initialize the reception again. If the radio signal
still cannot be received, the time should be set manually.
After setting the 12HR or 24 HR display mode, press the "SET' button once to bring the unit to time
setting mode. The hour digits will begin to flash. Press the
A
button to change the hour digits to the
proper time. Press the "SET" button again and the minutes digits will begin to flash. Press the
A
button to change the minutes digits to the proper time. Press the "SET" button again and the
seconds digits will begin to flash. Press the
A
button to change the seconds digits to the proper
time. After setting the hours, minutes, and seconds, press the SET button once to return to the
normal time display. Then move the slide switch back to the "LOCK" position.
Note: Returning the slide switch to the "LOCK" position at anytime during the setting
procedure
will
cause the LCD to remain at the last step completed. To ensure proper operation of
the MFJ-121, the slide switch should not be returned to the "LOCK" position until the LCD
displays the time with no digits flashing.
Setting the Lower LCD Display
With the MFJ-121 in the normal time display mode, move the slide switch on the back of the clock
to the "TIME II" position. Follow the same procedure as Setting the Upper LCD Display.
Daylight Savings Time
The time receiver in the MFJ- 121 will automatically detect Daylight Savings Time. This
feature cannot be disabled. The MFJ- 121 will automatically adjust the time during Daylight Savings
time so you will not have to change the time zone. During Daylight Savings Time the symbol
" *
D.S.T" will be shown above the seconds on both LCD displays. If you live in an area that does not
observe Daylight Savings Time or want to display GMT, you must set the Time Zone -1 HR from
the current setting to compensate.
