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Old 09-05-2016, 05:41 AM   #1
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Default Simrad 3D Structure depth performances

Hi to all guys, how deep can read the 3D structure from Simrad?
I'm looking for a sidescan sistem to search WW2 wrecks between 150 and 500 ft. has anyone tryed this system at these depths?
thx
ale
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Old 09-05-2016, 08:40 AM   #2
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I believe the max depth for the side scan is 150' in the 2D mode. I have problems getting a return over 100' in 3D mode with mine. Works great to 95' then won't render an image deeper than that. The down scan max depth is 300'.
Hope this helps.
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Old 09-05-2016, 06:08 PM   #3
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^ This sounds like about what I have heard from a friend who has one.
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Old 09-05-2016, 08:47 PM   #4
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yep, after 99 feet she's gone
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Old 09-06-2016, 09:45 AM   #5
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Here is mine in 75ft - still working on getting downscan working right. I haven't run much deeper than 100ft, but the manual suggests a max depth of 200' for downscan, and 600ft to left and right... http://www.lowrance.com/Root/structu...-10979-001.pdf

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Old 09-07-2016, 01:17 AM   #6
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i need something like this, but for this time not from garmin.

do you think that Simrad unit can do the same?
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Old 09-07-2016, 01:25 AM   #7
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[IMG][/IMG]
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Old 01-03-2017, 05:56 AM   #8
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bump
something new?
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Old 01-03-2017, 07:13 AM   #9
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The 3D-part og StructureScan 3D is in my eyes not that great for finding wrecks. The image gets to grainy.

The SideScan-part is however great.

The image above is from my SL2-sonarlog in Reefmaster. Saltwater and the depth is 60 meters (120 feet). The wreck is small, around 20 meters and was set on fire before sniking. Keep in mind that local conditions and ducer placement/adjustement is a major factor for scanning sonar. The screenshot above was in quite murky water and with a lot of small baitfish making my search quite hard.

With SideScan in deep water you must use a large range, in order to cover the bottom. 1/3 or so of the range is "lost" in the watercoloumn. For real deep scanning you need a towfish for the best results, and a PC to review your sonarlog.
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Old 01-03-2017, 11:41 AM   #10
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I am also looking for a 3D structure scan set up and wondering what transducer are you using.
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Old 01-03-2017, 11:52 AM   #11
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Not sure what you are asking here? For SS 3D I use that ducer and module. For 2D I have several ducers and use the one that fits my needs from day to day. When looking for wrecks and other structure I use an Airmar P66. For deeper water then 100 meters or so a TM260 would be a better choice then my P66.
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Old 01-03-2017, 01:31 PM   #12
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Quote:
Originally Posted by Team Colibri View Post
Not sure what you are asking here? For SS 3D I use that ducer and module. For 2D I have several ducers and use the one that fits my needs from day to day. When looking for wrecks and other structure I use an Airmar P66. For deeper water then 100 meters or so a TM260 would be a better choice then my P66.


Sorry, if I did not make my self clear since I am very green in marine electronics but this is what I am talking about.


http://www.internationalmarineservic...-13560-001.htm


or will this work this work for 3D


http://www.internationalmarineservic...-11460-001.htm
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Old 01-03-2017, 10:09 PM   #13
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I see, no problem.

Your first link is SS 3D, basicly the same as I'm using. Your link is to the through-hull version and I'm using the transom mount version. So yes, this is what you need.

Your second link is also through-hull, but for StructureScan HD, ie the "normal" SideScan/ DownScan. This has no 3D, and shorter range on SideScan then your first link.

Take care when mounting this. As mentioned scanning sonar in general is very sensetive when it comes to bad placement of the transeducer. Even waterflow with litle or no turbulence is a must for sharp images.
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Old 01-05-2017, 01:17 PM   #14
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I use the Simrad 3D Structurescan every time I'm out fishing. I'm generally fishing water from 50-110 ft. and it works great. In the downscan option, it picks up bait near or on the wreck that my 1WK won't and that's what I'm looking for when trying to fish near the bait. In the photo, you can see the wreck to the right of the white boat. Notice the holes in the deck of the ship. It sits upright in 80 ft. It has a crazy track mark because I was in a turn.
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Old 01-08-2017, 01:01 PM   #15
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Hi Team Colibri, which is better as 2d sidescan, SS3D or LSS2HD?
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Old 01-08-2017, 01:49 PM   #16
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StructureScan 3D is much better than StructureScan HD when it comes to SideScan. The 3D has much better range and wider coverage. The StructureScan 3D transducer has three pairs of sidescanning elements, one transmitting and two listening. Ordinary StructureScan transducers only have one pair of sidescanning elements.
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Old 01-08-2017, 02:33 PM   #17
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Just curious if 3D is necessary for tuna fishing in SoCal. My electronics guy just installed a pair of SS 2D on my bout and he did not even know about the 3D.
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Old 01-10-2017, 09:13 AM   #18
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Quote:
Originally Posted by abbor View Post
StructureScan 3D is much better than StructureScan HD when it comes to SideScan. The 3D has much better range and wider coverage. The StructureScan 3D transducer has three pairs of sidescanning elements, one transmitting and two listening. Ordinary StructureScan transducers only have one pair of sidescanning elements.
Hi Abbor, can Structure3d work at 100-130m in depth as Sidescan?
thx
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Old 01-10-2017, 10:49 PM   #19
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Quote:
Originally Posted by ale170 View Post
Hi Team Colibri, which is better as 2d sidescan, SS3D or LSS2HD?
In shallow water and with short range, the difference is very small. But as the depth and/ or range increases, the sidescan of SS 3D gets better and better compared to LSS-2.

In theory sidescan can work in 100-130 meters depth, but it would take ideal conditions. If you are serious at sidescan at those depths, a towfish is the way to go.

And remember that as the range/ depth increases, the amount of water/bottom shown on your screen increases as well. This means that the objects you are looking for gets really small on your screen. This is why I process the sonarlogs at a PC back home.
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Old 01-11-2017, 07:55 AM   #20
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Hi team Colibri, i thought to build a towfish, cause i cannot purchase a professional one, it's too expensive, at that price i'd buy a Wassp multibeam. About towfish my questions are:
1- how deep can a transom transducer go? (pressure problem)
1- how can i extend the transducer cable?

what pc software do you use for sidelogs?
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