Lowrance lms-522c igps 操作指南

179 

To turn on/off the WAAS Alarm: 
1. Press 

|

|

↓  to 

|

|

↓  to 

. 

2. With the option highlighted, press 

 to check it (turn on) or un-

check it (turn off) the WAAS Alarm.  
3. Press 

|

 to return to the map display. 

To Require WAAS: 
1. Press 

|

|

↓  to 

|

|

↓  to 

. 

2. With the option highlighted, press 

 to check it (turn on) or un-

check it (turn off).  
3. Press 

|

 to return to the map display. 

From time to time, Lowrance updates the operating system software in 

some of its products. These software upgrades are usually offered to 

customers as free downloads from our web site, www.lowrance.com. 

These upgrades make the unit perform better and/or introduce a new 

feature or function. You can find out what software version is running 

in your unit by using the Software Information command. 

 

To access Software Information: 
1. Press 

|

, highlight 

and press 

.

2. Select  

and press 

. Software information will be dis-

played on the screen. 
3. Press 

repeatedly to return to the map display.