Lowrance electronic globalmap baja 840c 用户手册

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 Press 

→

 to 

|

. Press

↑

 or 

↓

 to select the day, then 

press 

. 

 Press 

→

 to 

|

. Press

↑

 or 

↓

 to select the year, 

then press 

. 

 

: Press 

↓ to the Time Format window. Just highlight 

the option you prefer — 12 or 24 hour — and press 

.  

 Press 

↓ and → to modify the Date Format. There are 

three options: Month/Day/Year, Day/Month/Year and Year/Month/Day. 
Use 

↑ or ↓ to select the format you prefer, then press 

.  

The last field we have to discuss is 

. This feature allows your 

unit to automatically adjust Daylight Saving Time (you should only have 

to set it once). You may select which set of rules matches DST in your 
region, or simply accept the default. Use the 

↓ key to configure DST. 

 Once you have each field set the way you want, press 

 repeatedly 

until you return to the previous page. 

When the signal is available, your unit will automatically use WAAS to 

boost the accuracy of the position fix. When the WAAS signal is lost or 

acquired, an alarm message appears. Since the U.S. government is still 

developing the WAAS system, it's not unusual for a GPS/WAAS re-

ceiver to frequently lose and reacquire its lock on a WAAS satellite. 

That can result in the alarm repeatedly going on and off. If you want, 

you have the option of turning off the WAAS Acquired/Lost alarm with-

out affecting how the unit uses WAAS. Here's how: 
1. Press 

|

|

↓

 to 

|

|

↓

 to 

.