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Message Subject: Tuffy 1890 Side Imaging

kdebell

Posted 5/19/2016 7:05 AM (#817600)
Subject: Tuffy 1890 Side Imaging

Posts: 251

I recently purchased a 2011 Tuffy 1890 GT and I am going to be mounting a Helix 9 on it. I am wondering where I should mount the transducer seeing that there is a step in the hull. I have never mounted a side imagining ducer so any info and/or pics would help. Feel free to email me if that is easier. Thanks in advance.

[email protected]

Edited by kdebell 5/19/2016 7:45 AM

sworrall

Posted 5/19/2016 9:22 AM (#817615 - in reply to #817600)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 32934

Location: Rhinelander, Wisconsin

Answered via email.

NickD

Posted 5/19/2016 7:20 PM (#817671 - in reply to #817615)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 298

Any chance you could post that here or email me? I had mine on the TM last year and might do that again but need to get the SI mounted on the back of the 1890.

kdebell

Posted 5/20/2016 7:55 AM (#817700 - in reply to #817671)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 251

Here was the response:

If you want it to read under power and at high speeds, it needs to be mounted exactly level with the running bottom at the front of the transducer on the starboard side, with the back tipped down about 1/8". Hope this helps!

Fishysam

Posted 5/20/2016 10:53 AM (#817722 - in reply to #817600)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 1209

If you don't care about that transducer reeding at speeds over 7mph I would strongly suggest as high up as you can mount it with nothing like screens on water intakes blocking the view left to right. These transducers are expensive and mounting up gives them more protection to logs/ beaching. I don't know that hull exactly but say on a skeeter the step isn't exactly square and that section towards the edge will impair the feeding "potentially ".

sworrall

Posted 5/20/2016 11:51 AM (#817728 - in reply to #817722)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 32934

Location: Rhinelander, Wisconsin

If you want it to read under power and at high speeds, it needs to be mounted exactly level with the running bottom at the front of the transducer on the starboard side, with the back tipped down about 1/8". Hope this helps!

Nick59

Posted 5/20/2016 12:45 PM (#817732 - in reply to #817728)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 548

Location: MN

I just mounted mine to the boat last night.
Used the straight edge to get the middle of transducer level with bottom of boat.
Hard to tell in picture though.

NIck

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(13271878_10154328338634236_785731011_o.jpg)

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13271878_10154328338634236_785731011_o.jpg (66KB - 458 downloads)

curleytail

Posted 5/23/2016 11:28 AM (#817907 - in reply to #817600)
Subject: Re: Tuffy 1890 Side Imaging

Posts: 2687

Location: Hayward, WI

I didn't know anybody used side imaging at high speeds. My SI transducer is quite a bit higher than the bottom of the boat on my 1760. It isn't totally perfect - it doesn't read out to the left as far as I can to the right but it reads far enough to be useful. I could probably play with it a little to get it better.

I do like having it mounted up a little for protection though.

mtcook16

Posted 5/23/2016 2:43 PM (#817917 - in reply to #817600)
Subject: RE: Tuffy 1890 Side Imaging

Posts: 546

Location: MN

Side Imaging transducers read SI, DI and 2D sonar all during off plane movement with a very high level of accuracy when adjusted to the conditions. It will work if you plug it in and use it, but you'll get more out of your electronics if you take a little time to learn them and tune them in for your use. It's like using a new reel out of the box without adjusting the drag or spool tension/brakes.

Side imaging is not intended for high speed readings (typical use is 3-5 mph and likely not more than 10mph). Due to the size of the transducers, significant water displacement occurs with all Side Imaging/Side Scan transducers at higher speeds creates a small air pocket underneath the transducer, causing you to loose depth and sonar readings. This is because sonar cannot read through air.

The solution? In reference to Humminbird SI units, per the original question, you can run a second transducer that will be dedicated to your hi-speed 2D sonar readings so that you will always have sonar and depth. Both the hi-speed transducer and Side Imaging transducer are connected to the unit via the use of a "AS SIDB Y" cable. A diagram is attached.

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(HB Transducer Setup.png)

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HB Transducer Setup.png (14KB - 461 downloads)

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