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Old 06 June 2007, 09:15   #1
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Sonar Display

Is there anywhere in the Solent or thereabouts where you can get a good reading of a sunken ship to show up on a standard Sonar/Depth gauge ?

Something to test that your bit of kit is working and to show you how its all represented on screen.
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Old 07 June 2007, 01:12   #2
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Plenty round here........
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Old 07 June 2007, 02:22   #3
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are there not some wrecks around the back of the island? whitecliffe bay or somewhere?

I am sure i remember being out with some divers who told me something.

other option if slightly less interesting would be to test it on the Submarine wall just outside portsmouth enterance?
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Old 07 June 2007, 04:20   #4
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There's an intact wreck of a dredger on Gurnard Ledge that's buoyed. It's not quite at the position shown below, but you can see the bright yellow buoy with 'wreck' on it in big letters from there.


Nationality: british
Description: dredger
Propulsion: motor vessel
Weight (tons): 332
LengthxWidth (m): 43 6
Reason sinking: cargo shift
Date sunk: 28/06/1978
Position: 50°42'54N 01°28'08W
System/Div:
Max | Min Depth: 16m | ?

Marine Chart: Outer Approaches to the Solent
Overview Chart: The-English-Channel



The wreck today:

[Diving Sussex]Believed to be intact, lies to port side. Strong Currents. Depth 16m, 1 Mile East of Yarmouth harbour, Solent, Isle of Wight. Orientation: E-W


You won't see a lot of a wreck in my experience-half of it is knowing it's there when you see a lump on the bottom scan.
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Old 07 June 2007, 04:59   #5
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Matt

I'll have to try that one.
I've been looking to do the same thing as Nick because I've just installed a digital fishfinder module to my C120, and to be honest the bottom of the Solent is getting a bit boring.
I've mainly installed it for when I'm in Devon to find the small reefs in Start bay.

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Old 07 June 2007, 05:11   #6
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You might find this interesting then-

http://users.pandora.be/tree/wreck/w...recksite.html#

Click on Marine Charts and you'll get up to date wreck positions.
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Old 07 June 2007, 11:06   #7
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Quote:
Originally Posted by Nos4r2 View Post
You might find this interesting then-

http://users.pandora.be/tree/wreck/w...recksite.html#

Click on Marine Charts and you'll get up to date wreck positions.
Matt,

Thats a cool link.

NR.

Needs some printing out when I get the printer fired up.
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Old 07 June 2007, 11:25   #8
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I assume you tried clicking on the wrecks? It brings up loads of data.
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Old 08 June 2007, 03:25   #9
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If you really want to see how good the resolution is then either;

Chuck in a weighted line and bouy when the tide is running and see if it will pick up the rope or if the weight used is big enough haul it up near the transducer and see if it picks up a small hard object suspended in't water column.

Our Lowrance X107DF does this so when the sweat is pouring off you and you really regreted using the 25kg shot weight the helm can tell you how much more there is to go.
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Old 08 June 2007, 09:51   #10
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peak to peak

am i right in thinking the more watts you have the better the picture of the sea bed ??
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