Lowrance m68c icemachine 操作ガイド

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tude/longitude lines must be parallel with the edge of the map. USGS
maps are parallel, others may not be. Also, this works better with
smaller scale maps.) The reference position can be anywhere on the
map, but the closer it is to your location, the smaller the numbers will
be that you'll have to deal with.

Once you've decided on a reference position, you must save it as a way-
point. (See the waypoint section for information on saving a waypoint.)
After you've saved the reference position as a waypoint, exit from the
waypoint screens.

1. Press 

|

|

↓ to 

|

.

2. Press 

↓ to 

|

.

3. Press 

↓ to 

|

.

The following screen appears, and 

 is highlighted. Press 

and enter the map's scale one numeral after another. The scale is gen-
erally at the bottom of the paper map. It's shown as a ratio, for example
1:24000. When the scale is entered, press 

 and the unit returns to

the Configure Map Fix screen.

Configure a map fix so the M68 can find your position on a printed

chart or topographical map.

Press 

↓ to 

|

|

|

 to bring up the waypoint list.

Select the waypoint that you saved the reference point under and press

. The unit displays a waypoint information screen with the com-

mand 

 selected; press 

 and the unit returns to the Con-

figure Map Fix menu. Finally, press 

 to erase this menu. Now press

↑

 

to 

|

, select 

 from the list and press 

|

.

All position information now shows as a distance from the reference
point you chose.