AIS alarm from ship on top of portsdown hill

[iangrant]

sat playing with the shiney new ais on the e80 the alarm went off - it was very upset about a ship reporting it's position underway on top of Poerstdown hill - looked interesting on the plotter.
can't remember the name of the ship but i think it was called HMS Default. - Test

I wonder if the navy realised that their top secret AIS testing was being recieved by most of the Solent?

Ian

 

[Sans Bateau]

I'm sure they can trust you not to tell anyone though, Ian.

 

[jhr]

I'd heard that they were testing a new product which deliberately misinterprets data, to show any ship (for example: a ferry) as being several miles away from its actual position, thus allowing them to sneak up on their prey without them realising.

Looks like it's working.

 

[chanelyacht]

It's probably genuine, just someone who didn't tie their lines correctly in Port Solent with the wind down here /forums/images/graemlins/shocked.gif

 

[davies]

Probably a grey funnel badger.

 

[Alex_Blackwood]

Have you not seen the Type 45 on Portsdown hill?
Getting it there beats the Falkirk wheel!

 

[KenMcCulloch]

I think it was probably a covert Iranian Navy vessel.

 

[Pete7]

No, the senior service now use AIS to track there lap tops incase one goes missing /forums/images/graemlins/grin.gif

 

[Giblets]

I'm still waiting for Fay s Fantasy to move out of Port Solent. /forums/images/graemlins/laugh.gif

 

[Woodentop]

Recently RN ships have started using AIS (i.e. broadcasting their details).

One ship was showing wrong data (heading 150 degrees different to course) and when asked about it the reply was that they were fitting and trialling the new kit. Next day they had it working correctly -
But they were also transmitting data for a ship just off the Falkland Islands.

I think the Navy have a special AIS set-up which allows them to give false positions or extra "virtual" ships.

 

[chanelyacht]

Presumably sending double transmissions so that Gordon Brown can claim we still have a decent navy fleet...


[ QUOTE ]
Recently RN ships have started using AIS (i.e. broadcasting their details).

One ship was showing wrong data (heading 150 degrees different to course) and when asked about it the reply was that they were fitting and trialling the new kit. Next day they had it working correctly -
But they were also transmitting data for a ship just off the Falkland Islands.

I think the Navy have a special AIS set-up which allows them to give false positions or extra "virtual" ships.

[/ QUOTE ]

 

[Piers]

With all these false transmissions, it certainly brings it home that AIS cannot be replied upon for collision avoidance. I really hope that the marketing for AIS RADAR will soon be changed to stop people relying on it as if it was a 'cheap radar'.

Hopefully, we won't have to wait for the first AIS induced collision.