Lowrance electronic lra-1800 Manual Do Utilizador

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WARNING: 
Increasing FTC may reduce or eliminate weak echoes, 
like those from small vessels. Use only the minimum 
amount needed, then check back periodically to see if 
the FTC level may be decreased. 
 
 
Anti-Rain Clutter vertical scrollbar (left) with Interference Rejection 
scrollbar (right). 
Interference Rejection  
This feature filters out signals from other radars close to your location.  
To adjust Interference Rejection: 
1. Press 
MENU
, select 
I
NTERFERENCE 
R
EJECTION
 and press 
ENT
.    
2. Use 
↑ ↓ to adjust the Interference Rejection. Press 
EXIT
  
 
Radar Range selected (left). List of radar ranges (right).  
Radar Range 
This feature allows you to expand the area shown on the display unit, 
allowing you to see distant targets. You also can decrease the range to 
focus on targets closing in on you.