Lowrance GlobalMap 4000M Operation Instructions Manual page 99

System Setup Menu, left, Units of Measure Menu, right.
To set Speed/Distance Unit of Measure: Press ↑ or ↓ to change the
Speed/Distance, then press . After the option is set, press
ENT
| | to return to the page display.
EXIT EXIT EXIT
To set Heading: Press ↑ or ↓ to change the heading type, then press
. After the option is set, press | | to return to the page
ENT EXIT EXIT EXIT
display.
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