JRC JMA-993-SA Instruction Manual page 265

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Antenna Height Adjustment' '
Set the height ofthe antenna above the sea level.
Do not change this setting inadvertently.
3
Gtick I ol , then ENTEE.
The ADJUST Menu will be closed.
ADJUST
l.TUNE
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2.BEARING
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S.RANGE
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EXIT
MBS
IIL'
crickffi.
2 Click IEXII .
The CODE INPUT Menu will be closed.
8-37
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I
Gtick MENUlon the screen. or press loprtot't4 rey.
The MAIN Menu will appear.
Glick
E I N
The CODE INPUT Menu will appear.
The ADJUST Menu will appear.
Glick the "4.ANTENNA HElGHT"edit
box.
.ANTENNA HEIG will be selected.
Measure the height from the sea
surface to the top of the antenna,
then select the corresponding
antenna height from the pull-down
menu.
The selected antenna height value will be set.
3 Clickffi.
The MAIN Menu will be closed.