Lowrance 540c baja 操作指南

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4. Press 

 and enter the map's scale. This is generally at the bottom 

of the paper map. It is shown as a ratio, like 1:24000. Press 

 and 

the unit to return to the Configure Map Fix screen. 

 

5. 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.  

6. Press 

 and the unit returns to the Configure Map Fix menu. Fi-

nally, press 

 to close this menu.  

7. Press 

↑  to 

|

, select 

 from the list and press 

|

. All position information now shows as a distance from the 

reference point you chose. 

Every Page display option except Full Map (on the Map Page) has cus-

tomizable data boxes to provide constant on-screen information.  
The data available from your unit is divided into categories in the Data 

Viewer menu. These categories include: GPS Data, Navigation, Trip 

Calculator, Time and Sensor Data. You can select items from any of 

these categories for display in any data box — the category divisions 

are only there to help you sort through the information. 
To change the information displayed in a data box: 
1. On the Page display you wish to change, press 

|

↓ to 

|

. A data box name flashes, indicating it is selected.  

2. Press 

 to change the box or hit 

↑, ↓, ← → to select another box, then 

press 

.