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Max Online: 36273 @ 01/23/13 02:34 PM
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#11529217 - 04/08/16 09:08 AM How does DS work?
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
I bought the Lowrance Hook 4. I have been using the split screen. My question is, dose it read 20° straight down or 20° to one side. I know it's a cone but which way does it read? I went after work yesterday and went right through some thick timber and couldn't tell which side I was looking at. It was awesome seeing the structure. The screen was clear. Also it seemed the faster I went the clearer the picture was.

Thanks for the help and information.
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#11529234 - 04/08/16 09:20 AM Re: How does DS work? [Re: lookingfor25]
Josh W Offline
Outdoorsman

Registered: 02/17/13
Posts: 129
Loc: Gatesville
Straight down. Leaningpost can explain all you need to know about it.

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#11529294 - 04/08/16 09:52 AM Re: How does DS work? [Re: lookingfor25]
mbsfish Offline
Angler

Registered: 11/28/06
Posts: 408
Loc: Liberty Hill
No it is not a cone. It is a vertical plane.

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#11530163 - 04/08/16 05:29 PM Re: How does DS work? [Re: Josh W]
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
Originally Posted By: Josh W
Straight down. Leaningpost can explain all you need to know about it.


Thanks,
lookingfor25
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#11530164 - 04/08/16 05:31 PM Re: How does DS work? [Re: mbsfish]
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
Originally Posted By: mbsfish
No it is not a cone. It is a vertical plane.


Thanks
lookingfor25
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#11530191 - 04/08/16 05:48 PM Re: How does DS work? [Re: lookingfor25]
Jacob Online   happy
TFF Guru

Registered: 05/31/08
Posts: 16167
Loc: Deep East Tx
You'll want to use 455hz for a wider cone. That's what I use when I'm looking for structure and fish. It also makes the fish a bit more obvious. I use 800hz if I want to get a really good image of exactly what the structure is. You can see fish on 800hz but remember it's a much smaller cone and is not going to show you all of the fish that may be hanging around the pile. Also, make sure you're going about 3.5 mph for the best image.


Edited by Jacob (04/08/16 05:50 PM)
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#11530332 - 04/08/16 07:44 PM Re: How does DS work? [Re: mbsfish]
TCK73 Online   content
Extreme Angler

Registered: 03/26/15
Posts: 2622
Loc: Jack County
Originally Posted By: mbsfish
No it is not a cone. It is a vertical plane.


This^^^^^

Down scan takes a slice from under the transducer. It is wide left to right, but thin front to back if that makes sense. By taking several slices and a good 2-4 mph boat speed it gives those good detailed images.
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#11530614 - 04/08/16 10:08 PM Re: How does DS work? [Re: Jacob]
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
Originally Posted By: Jacob
You'll want to use 455hz for a wider cone. That's what I use when I'm looking for structure and fish. It also makes the fish a bit more obvious. I use 800hz if I want to get a really good image of exactly what the structure is. You can see fish on 800hz but remember it's a much smaller cone and is not going to show you all of the fish that may be hanging around the pile. Also, make sure you're going about 3.5 mph for the best image.
I did learn that the faster I went the better the picture!
Thanks
lookingfor25
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Living for God, family and the great outdoors.

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#11530621 - 04/08/16 10:10 PM Re: How does DS work? [Re: TCK73]
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
Originally Posted By: TCK73
Originally Posted By: mbsfish
No it is not a cone. It is a vertical plane.


This^^^^^

Down scan takes a slice from under the transducer. It is wide left to right, but thin front to back if that makes sense. By taking several slices and a good 2-4 mph boat speed it gives those good detailed images.


Yes this makes sense.

Thanks
lookingfor25
_________________________
Living for God, family and the great outdoors.

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#11530624 - 04/08/16 10:12 PM Re: How does DS work? [Re: lookingfor25]
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
My next question is, what's the lag time or delay fro scan to graph? How far past something will I be before it shows up on the screen?

Thanks
lookingfor25
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#11531097 - 04/09/16 10:27 AM Re: How does DS work? [Re: lookingfor25]
Catfish-hunter Offline
Extreme Angler

Registered: 03/22/12
Posts: 1691
Loc: Medina lake
My HDSI transducer on my 899 is in line with the bottom of my boat and a 1/4" below. At slow speeds my nose is up so when I first see stuff on screen,it's in line with transducer. I think you can adjust graph speeds as well so just have to play with it. DS alone you'll have to hug a tree or pilling to see the distance between passing and shown. Good excuse to go to the lake,go play with it man!

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#11533645 - 04/10/16 09:54 PM Re: How does DS work? [Re: Catfish-hunter]
lookingfor25 Offline
Extreme Angler

Registered: 02/25/13
Posts: 2694
Loc: Cedar Creek, Tx
Originally Posted By: Catfish-hunter
My HDSI transducer on my 899 is in line with the bottom of my boat and a 1/4" below. At slow speeds my nose is up so when I first see stuff on screen,it's in line with transducer. I think you can adjust graph speeds as well so just have to play with it. DS alone you'll have to hug a tree or pilling to see the distance between passing and shown. Good excuse to go to the lake,go play with it man!


Thanks
lookingfor25
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Living for God, family and the great outdoors.

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