Lowrance radar and rim 200 operation Manuale Utente

13 

Main Bang Suppression is only for 4kW units —

 LRA 2000, LRA 4000 and 

LRA 5000. 

This feature filters out electronic noise close to your vessel. It 

gives you control of radar sensitivity in the area surrounding your ves-

sel, approximately 180 feet in all directions. 
Before making any adjustments to Main Bang Suppression, take your 
vessel out on open water with fairly calm seas, like an open bay. 
Caution: 

1. Press 

, highlight 

 and press 

.   

2. Press 

→|↓ to 

 and press 

. That will 

launch the Main Bang Suppression vertical scrollbar. 
3. The small red ring we adjusted during Trigger Delay setup will still 
be on the display. 

4. Press 

↑ slowly — Main Bang Suppression can be sensitive — to in-

crease the Main Bang Suppression level so the red ring becomes as thin 

as possible. 

5. Press 

↓ to slowly decrease the level until you have returned the red 

ring back to its thinnest point. Every radar is different, but typically, a 

setting between 2 and 8 percent will be satisfactory. 

In many cases, depending on the radar unit you have, over applying 

Main Bang Suppression can make the ring disappear, start to make 
it wider or the ring can get to a point where it is as small as it will 

get. At this point, increasing the main bang level will not change 

the red ring. 

If the red ring does not does not decrease in size when increasing 

the suppression level, reduce the level until you see a slight in-
crease in the size of the ring, then leave it at that setting.