Navman 6500 fish tracker

Can some one give me some advice as to why my Navman 6500 fish tracker looses bottem at about 130m or can't see fish at 90m when there are some really big gold band on the bite.


Posts: 5849

Date Joined: 18/01/12

does it have a gain control?

Mon, 2012-04-02 16:46

does it have a gain control?

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willy2668's picture

Posts: 122

Date Joined: 18/10/11

 Because its a navman 

Mon, 2012-04-02 17:56

 Because its a navman