SI transducers breaking ???

[Carpenter]

I'm going to mount my SI ducer but heard about possible breaking issues? I have the Humminbird series. Is it the arm on the ducer or the plastic part of the mounting bracket? Is this still an issue?

I have heard that people are mounting the si ducer higher and adding another ducer in the standard spot. Id rather not spend the money, but if that is necessary which ducer is needed for standard sonar?

thanks

[Nick Kuhn]

I haven't heard of any issues. The ducers are designed to kick up should you hit anything. I'll make no guarantees but unless you drive your boat like a bumper car you should be alright.

[CAMAN]

It explains it all in the installation instructions but you want to mount it above the bottom of the hull so when you are on plane it is out of the water, but low enough so when you are going below 10mph it as in the water.

Never heard of anything on it breaking, so that could have been when it first came out and they were working out the bugs.

Don't know which ducer you use for high speed since I was able to mount mine just right and the graph function reads great while on plane. Took some trial and error and in the water adjustments but it works great.

[pulleye16]

I've heard the same thing and you can read it by searching the internet. It's the mounting bracket not the ducer. Why they don't go metal like Lowrance...sort of like strikemasters handles. Some companies cut corners in the stupidest places.

[reddog]

the only series that is plastic is the 700 series, which is a smaller xducer to begin with. It only operates on 455 khz. The HDSI for all of the 8, 9 and 11 series are metal mounting brackets.

There is way too much emphasis put on these things breaking in my opinion.

Mine is mounted slightly below the surface of my boat, and operates just fine, up to 40 mph with only the HDSI xducer.

Now, let me say that I did break it off once, but it wasnt while running. I was drifting, and drifted into a submerged stump, and it sheared of both the HDSi and the Lowrance skimmer.

[Carpenter]

If I end up with 2 dupers on the back, has anyone mounted the 2d ducer directly below the Si ducer?

[PerchJerker]

If I end up with 2 dupers on the back, has anyone mounted the 2d ducer directly below the Si ducer?

You definately can't do that with Lowrance transducers, you'll block the down-scan transducer crystal.

The HB transducers don't have a down image transducer, they draw the down image based on interpolation of what the two side image transducer crystals see. But even so I think having a transducer directly below the SI transducer is going to block part of the signal. Plus when the SI transducer is in the water, the unit will read that transducer and not the skimmer transducer, so it will block your conventional sonar at slow speeds.

I would definately NOT put one directly under the other.

[Drew]

Carp your giving away my secrets

[Northlander]

the only series that is plastic is the 700 series, which is a smaller xducer to begin with. It only operates on 455 khz. The HDSI for all of the 8, 9 and 11 series are metal mounting brackets.

There is way too much emphasis put on these things breaking in my opinion.

Mine is mounted slightly below the surface of my boat, and operates just fine, up to 40 mph with only the HDSI xducer.

Now, let me say that I did break it off once, but it wasnt while running. I was drifting, and drifted into a submerged stump, and it sheared of both the HDSi and the Lowrance skimmer.

My 957c has a plastic bracket and when it broke they sent me another plastic bracket.

[reddog]

I was referring to HDSI Xducers.

[JohnMickish]

My 898CSI has a plastic transducer.

[reddog]

My 898CSI has a plastic transducer.

The transducer is plastic. The mounting bracket is metal, isnt it?

[JohnMickish]

Yes, the bracket that bolts to the boat is metal but the Xducer and the rest of the mounting parts are plastic. It is designed to kick up if something is hit so it dosen't break.

[Carpenter]

Sorry Drew, not trying to give away anything. I'm just trying to get a second opinion. So far, not comfortable. Hope you're not upset.