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Old 24-07-2018, 17:46   #31
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Re: Is private vessel tracking public record?

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Originally Posted by masonc View Post
We have an AIS ground station on our house. It covers St. Barths to 100 miles North East of Anguilla, uploads the data to Marinetraffic.com
I curious why you would want to operate a ground station?
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Old 24-07-2018, 17:47   #32
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Re: Is private vessel tracking public record?

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I had thought all ocean going yachts would, but we recently sailed from Dominica to St. Kitts and almost all the boats we came across did not appear on our AIS. If it wasn't for the one that did, I'd have thought our equipment broken. It's bizarre that they would have the equipment but choose not to broadcast their position, maybe they paranoid. All the commercial ships showed up.
Privacy!
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Old 24-07-2018, 20:33   #33
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Re: Is private vessel tracking public record?

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I had thought all ocean going yachts would, but we recently sailed from Dominica to St. Kitts and almost all the boats we came across did not appear on our AIS. If it wasn't for the one that did, I'd have thought our equipment broken. It's bizarre that they would have the equipment but choose not to broadcast their position, maybe they paranoid. All the commercial ships showed up.
Well the Class A high power stations showed up and the low power Class B did not. That most likely has more to do with the distance the yachts were from you and the capability of your receiving antenna.
12 watts vs. 2 watts
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Old 25-07-2018, 05:04   #34
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Re: Is private vessel tracking public record?

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One question was about how many boats transmit AIS. My general experience is that all sailboats >38 ft in length almost always are transmitting when offshore, and most are transmitting when inside the COLREGS line as well. Smaller boats and motorboats, not as much.

Around here, maybe one in a hundred, or maybe only one in two hundred, boats have AIS.

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Old 25-07-2018, 06:21   #35
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Re: Is private vessel tracking public record?

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Any way to anonymize the identifier substitute a different boat name / owner.

Hard to believe the superyacht set lets the world know where they are when aboard.
It gives you info about the boat, not who is on it. Many super-yachts charter out when the owner isn't present, so the boat name doesn't tell you who is on the boat.

Technologically, it should be easy but would probably be considered a violation of the CG documentation or other rule as you would be portraying a false boat name. A big part of AIS is the ability identify a conflicting boat by name and location. If you sent out conflicting information and there was an accident, it would likely be held against you that you were at least partly at fault for transmitting incorrect information.

You could just turn it off and revert to standard eyeball navigating but that could still get you in trouble if an incident could likely have been avoided thru the use of AIS. The rules say you have to use all reasonable tools available.
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Old 25-07-2018, 06:47   #36
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Re: Is private vessel tracking public record?

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Technologically, it should be easy
if anyone could outline some methods for doing so I'd appreciate it.

Going right back to registering / flagging the boat, process of buying activating the AIS etc.

And of course needed changes to usage.

Not talking about switch back and forth, a consistent ID.

But using legal structures to anonymize ownership is an option too, skipper as an employee of a blind LLC or?
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Old 25-07-2018, 07:14   #37
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Re: Is private vessel tracking public record?

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Originally Posted by john61ct View Post
if anyone could outline some methods for doing so I'd appreciate it.

Going right back to registering / flagging the boat, process of buying activating the AIS etc.

And of course needed changes to usage.

Not talking about switch back and forth, a consistent ID.

But using legal structures to anonymize ownership is an option too, skipper as an employee of a blind LLC or?


FAA has mandated ADSB, very similar to AIS. I have brought up the privacy issue more than once, their answer is that you can petition Flight Aware to not show your position.
Iím sure all of Hollywood doesnít display their Pvt Jets destination etc. to the general public.
Iíd bet the same is true for Marine Traffic and other sites, if you fill out the form or whatever you can likely ask that your position not be displayed.
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Old 25-07-2018, 07:16   #38
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Re: Is private vessel tracking public record?

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Originally Posted by john61ct View Post
if anyone could outline some methods for doing so I'd appreciate it.

Going right back to registering / flagging the boat, process of buying activating the AIS etc.

And of course needed changes to usage.

Not talking about switch back and forth, a consistent ID.

But using legal structures to anonymize ownership is an option too, skipper as an employee of a blind LLC or?
I think you missed the point. It's supposed to match your boat name for a reason. The whole point is being able to identify a particular boat by name and the name matches the one on the transom and in the CG documentation.

If you just want to anonymity for the owner, the standard approach would be to use a corporation as owner (not hard to pierce if you do a little research but for a casual AIS user it works)...any of your super yachts that care are almost certainly already under a corporate name.
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Old 25-07-2018, 08:13   #39
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Re: Is private vessel tracking public record?

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Originally Posted by john61ct View Post
if anyone could outline some methods for doing so I'd appreciate it.

Going right back to registering / flagging the boat, process of buying activating the AIS etc.

And of course needed changes to usage.

Not talking about switch back and forth, a consistent ID.

But using legal structures to anonymize ownership is an option too, skipper as an employee of a blind LLC or?
IMO needs to do this....create a mechanism of pseudo-random identifiers that change every 10 minutes. Keys to the algorithm only known via proper authorization.

Or, close the databases. There is a reason you can't lookup a car license plate number and find out the owner. Same should exist with marine and aviation.

My AIS stays in 'standby' mode, only transmit is low vis situations.
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Old 25-07-2018, 09:09   #40
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Re: Is private vessel tracking public record?

I seriously doubt that a war ship from any nation provides tracking information to the public unless they are on an ocean highway.
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Old 25-07-2018, 09:41   #41
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Re: Is private vessel tracking public record?

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you can't lookup a car license plate number and find out the owner.
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Old 25-07-2018, 10:47   #42
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Re: Is private vessel tracking public record?

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I seriously doubt that a war ship from any nation provides tracking information to the public unless they are on an ocean highway.
U.S. warships seldom transmit AIS, regardless of where they are. Occasionally they do but this is pretty rare.
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Old 25-07-2018, 10:57   #43
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Re: Is private vessel tracking public record?

https://maritime-executive.com/artic...#gs.9IC1Lfs://
Quote:
CNO: U.S. Navy Warships Will Start Transmitting AIS
(USN)
BY MAREX 2017-09-20 21:37:27

Following scrutiny over two deadly collisions earlier this year, the U.S. Navy will increase manning levels on certain vessels and will require its warships to transmit AIS signals when transiting congested waters.
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Old 25-07-2018, 14:15   #44
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Is private vessel tracking public record?

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Originally Posted by DotDun View Post
I curious why you would want to operate a ground station?


They get access to more features. Itís for boat enthusiasts and people that just like technology.

Quote:
Originally Posted by oleman View Post
I seriously doubt that a war ship from any nation provides tracking information to the public unless they are on an ocean highway.


In places like Norfolk we will often see the naval vessel assist ships transmitting while they are escorting a ship into or out of the base. Also, at the bombing range at Dahlgren. The navy will set up a perimeter of 4 boats around the range and this helps you identify the no go area. So I suppose it depends on the size of the boat and its mission.
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Old 25-07-2018, 14:57   #45
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Is private vessel tracking public record?

Not seen it mentioned here but there doesnít seem to be anything to stop recreational vessels from buying a better class A system. Some of the Icom systems sold at reputable chandlers are only slightly more expensive than a class B system
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