Humminbird Side Imaging Forums

Side Imaging Forums => 798c SI => Topic started by: slimbo on February 01, 2011, 11:49:41 AM

Title: 798 problems
Post by: slimbo on February 01, 2011, 11:49:41 AM
dont know if im doing something wrong or if i just dont understand but my si doesnt seem to work right the downimage is great but all i get on si is smooth screen with an occasional rock pile when i get near piers nothing when i know there is brush or trees there nothing dont get it is something wrong or some settings i can change or i heard a new transducer was available the si just doesnt work like adds show  please help
Title: Re: 798 problems
Post by: Wayne P. on February 01, 2011, 12:18:30 PM
There is no "new" transducer available for the 798.

Title: Re: 798 problems
Post by: kosmo on February 01, 2011, 12:21:49 PM
slimbo; please send some pictures. somebody here can help
Title: Re: 798 problems
Post by: ITGEEK on February 01, 2011, 01:52:58 PM
Did you take the unit off of DEMO mode? :)
Just kidding.

Well,
Make sure there is nothing interfering with the transducer .
It needs a clear path to shoot out to each side.
You may need to trim up your motor to create a clear path.

Maybe if the transducer is installed too low or too high on your transom, it
could be getting too many air bubbles from turbulant water.  You could try moving the transducer to another location.

Make sure the transducer is more or less level when your boat is in the water.
It could be pointed too far up or down.  I think the optimum is pointed slightly downward.

Make sure the transducer is clean.

I'm all out of ideas.
Good Luck.
Title: Re: 798 problems
Post by: Bob B on February 01, 2011, 04:43:13 PM
Maybe you are referring to upgrading to the HDSI transducer?
Title: Re: 798 problems
Post by: maxflia on March 18, 2011, 09:02:06 AM
Did you ever figure out what was wrong.  I think I am having a similar problem with my 898.  I have only taken it out once though.  I am going to try again on Sat.  I have my transducer on my trolling motor and everything looks pretty clear.  I wasn't able to see any dock pilings or laydowns.  Attached is my mount could this be the problem. 
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