Furuno 588 auto interference


My furuno 588 with TM260 transom mount run well in manual gainbut as soon as I select auto gain the screen becomes unreadable full clutter top to bottom 

I've have a boat yard adjust the height and angle but cannot run in auto 

Any suggestions 




scubafish's picture

Posts: 930

Date Joined: 15/08/12

Just suggestion

Sat, 2019-07-27 08:50

Need to post Photo's bro.



Posts: 16

Date Joined: 12/02/10

 Didn't think about it last

Sat, 2019-07-27 12:55

 Didn't think about it last night

This is a fairly new install unsure why there is interference when in auto oly

I will take some pics next time out





Posts: 308

Date Joined: 28/05/15

Don’t use auto, simple

Sat, 2019-07-27 13:27

Don’t use auto, simple solution. Always run in manual and you will get the best out of the unit. 

Posts: 16

Date Joined: 12/02/10

 Hello Vic DoryYeah I

Sat, 2019-07-27 14:30

 Hello Vic Dory

Yeah I understand that and do when I'm nearing a spot


I'm just trying to work out why this is the case though it shouldn't be unreadable in auto the whole screen goes full clutter top to bottom and is clear as soon as you go to manual




Posts: 256

Date Joined: 13/08/11

Auto will take a while to

Mon, 2019-07-29 13:37

Auto will take a while to sort itself out, does it come good if you leave it in auto for a while.

Posts: 16

Date Joined: 12/02/10

 Hi SuloNo mate no change

Mon, 2019-07-29 15:49

 Hi Sulo

No mate no change just full clutter top to bottom





Ashram's picture

Posts: 134

Date Joined: 23/10/09


Tue, 2019-07-30 09:20

 Is the auto gain on fishing or cruising. By the sounds of it you are cruising so you should select auto cruising. Cruising and Fishing have different settings. That is cruising has less power gain etc so interference is reduced at speed where as fishing has a lot oomph in auto so you can detect fish and structure whilst movibg around slower.

Hope that solves your issue


Posts: 812

Date Joined: 09/10/06

 My furuno 585 hasnt seen

Tue, 2019-07-30 15:56

 My furuno 585 hasnt seen auto gain in 8 years. Manual all the way