Lowrance electronic lra-1800 Manual Do Utilizador

18 

1. Press 

, select 

 and press 

. 

2. Use 

↑ ↓  to select the desired range and press 

.  

When switching radar ranges, you likely will need to adjust Gain, 
STC and FTC settings to achieve optimum performance. 

You can also adjust radar range by pressing the 

 or 

 keys. 

Radar Echo Expansion 
The Radar Echo Expansion feature will make weak signals more visible 

on the display by lengthening radar echoes. 

1. Press 

, highlight 

and

press 

 to turn it 

on (check) or turn it off (uncheck). Press 

.  

be enlarged, including clutter. 
Echo Trail Interval 
The Echo Trail Interval feature displays an on-screen history (trail) of 

the movements of all radar targets. 

1. Press 

, select 

 and press 

. 

2. The Echo Trail Interval menu will display a series of intervals with 
options ranging from Continuous to Off. Use 

↑  ↓ to highlight the de-

sired interval and press 

. Press 

. 

This feature is best used in open water or when your vessel is sta-
tionary and you are tracking a moving target. If Echo Trail Interval 

is on and your vessel is moving, the display will be crowded with 

trails for every target, including stationary targets, like lighthouses 
and land. 

Clear Radar Trails 
This feature is used to clear radar trails created with the Echo Trail 

Interval command.  

1. Press 

, highlight 

 and press 

.  

Log Radar Data 
If your unit has a hard drive (LCX-28cHD, LCX-38cHD, LCX-113cHD 

GlobalMap 6600cHD, GlobalMap 7300cHD GlobalMap 7600cHD,