UK to report ships with AIS turned off

[tp12]

Originally Posted by john61ct

I was not saying illegal fishing is not a huge problem.

Sure. The quote I edited in should clear up the UK's purpose for doing the reporting or you can go back to the original post and read the article linked, if it helps.

[Jim Cate]

But fishing boats of normal size are not required to have AIS, so how can this ploy be used to combat illegal fishing?

Jim

[tp12]

Originally Posted by Jim Cate

But fishing boats of normal size are not required to have AIS, so how can this ploy be used to combat illegal fishing?

Jim

What's 'normal size' for a fishing boat?

The target here is the many illegal fishing boats that sail into another nation's territorial waters, especially nations with small or no Navies/Coastguards, and fish their waters, often decimating local populations. These tend to be larger, ocean going commercial vessels that are required to show AIS.

A quick google shows how widespread the problem is. Here's one of the articles I just found:

https://news.nationalgeographic.com/...n-reserve-spd/

[tarian]

Originally Posted by john61ct

Fish?

North Korean / Iran sanctions, illegal arms trading I think more likely targets

The system is set up for primary for the overseas territory of Accession , St Helna , the Falklands , South Georgia and Diego Garcia and surrounding islands that have all been or in the stages of being classified as Marine Reserves and a 200 economic limit has been set around said Islands which is the right of the sovereign state to monitor fish catches, this is because these are some of the richest fisheries and have been over fished and exploited by large fish factory vessels coming in from foreign states
The British Government has no chance of patrolling such vast areas and is turning to satellite tec to hopefully stop this.
North Korea , Iran Sanctions are of no Concern to the UK as we have no sanctions with Iran other than weapons ,and North Korea is not our remit, and can do nothing about them as they will be in international waters and the no doubt the ships registered to friendly countries of said regimes.

[tarian]

Originally Posted by Jim Cate

But fishing boats of normal size are not required to have AIS, so how can this ploy be used to combat illegal fishing?

Jim

They are not concerned about small boats its the big Factory ships that come and scoop up the fish , these territories are to far away for small fishing vessels to enter , there after the big boys

[jmschmidt]

Please note that I said nothing about the boarding of vessels by naval authorities. You are correct that this effectively can be done by most navies but that was not the issue.

Running your AIS in transmit mode in sketching areas of the world is asking for trouble . US Navy vessels only run their AISs in transmit mode when approaching high traffic areas in friendly inland waters. I don't think they will be impressed if some UK bureaucrats "report" them to the school principal.

[john61ct]

That would be the principal being reported by the system

[Pete7]

Originally Posted by jmschmidt

Running your AIS in transmit mode in sketching areas of the world is asking for trouble.

Agreed, but how many yachts operate in sketchie areas?

Originally Posted by jmschmidt

US Navy vessels only run their AISs in transmit mode when approaching high traffic areas

You mean like the traffic separation schemes off the coast of Japan?

Originally Posted by jmschmidt

I don't think they will be impressed if some UK bureaucrats "report" them to the school principal.

Those same bureaucrats do quite a good job of bringing to court captains both commercial and yachties who break the rules in the TSS off Dover. The MCA also does a good job of inspecting and seizing commercial vessels who fail safety inspections. You might think this is over the top, until you read the reasons for the seizure. Personally I am quite glad they do.

https://www.gov.uk/government/news/f...ring-july-2018

[tarian]

Originally Posted by Pete7

Agreed, but how many yachts operate in sketchie areas?



You mean like the traffic separation schemes off the coast of Japan?



Those same bureaucrats do quite a good job of bringing to court captains both commercial and yachties who break the rules in the TSS off Dover. The MCA also does a good job of inspecting and seizing commercial vessels who fail safety inspections. You might think this is over the top, until you read the reasons for the seizure. Personally I am quite glad they do.

https://www.gov.uk/government/news/f...ring-july-2018

+1 Yes it is a shame some people always think someone is out to get them ,
It must also be noted most Naval vessels af the world have their AIS turned off.
Abd fisheries protection and Coast Guard and border Patrol , no good trying to catch the bad guys when they can see your AIS signal behind the Island their trying to hide from

[Adelie]

Originally Posted by jmschmidt

They can report away to their little bureaucratic hearts content but they have no jurisdiction over any vessel outside of their territorial waters except UK flagged vessels.

Their reach is longer than their jurisdiction. Regardless of flag state, insurance companies will be happy to find out if the vessels they insure are turning off mandatory safety equipment.

The pen is mightier than the sword, except one in one.

[NPCampbell]

Originally Posted by LoudMusic

Also, monitoring from a satellite won't be the best solution. What if my transmitter antenna has a high gain antenna on it? It won't be transmitting "upward", only horizontally, and the satellite won't see my AIS signal.

Originally Posted by transmitterdan

Satellites are not that high in the sky and not usually directly overhead. They can easily receive Class A AIS which is what matters for this case. They are not interested in Class B recreational AIS.

The lowest practical orbit for a satellite is 250 miles up. This particular satellite is 350 miles up.

However, I'm assuming the primary limitation on the broadcast distance of AIS/VHF signals is curvature of the Earth. So even at a whopping 350 miles, a satellite with a high gain receiver should have no problem picking an AIS signal radiating from an omni antenna.

[transmitterdan]

That’s correct as long as solar radiation isn’t too bad. So during some parts of the day satellite may not pick up every signal. But there are several satellites so usually the AIS system will log each class A signal several times a day. Maybe more often at night.