I’m anti AIS. BUT......

[wingssail]

Originally Posted by Anders

When I'm ashore I don't want my every step tracked and displayed on a web page. Why would I want that when I'm on the boat?
If I had a AIS transceiver the transmit would be off except when really needed or so far away from land based AIS that I could not be tracked anyway.

Many satellites are now capable of picking up and forwarding ais signals so being away from land does not protect you from being tracked.

Being tracked does not bother me, I am not hiding my movements (least of all from a wife, girlfriend, or boss, geez I can't believe anybody actually said that) and I doubt if anybody is paying attention to me anyhow.

To the person who is concerned about revealing their location to a wife, girlfriend, or boss, that means you are telling them one thing about what you are doing and instead you are going out on a boat doing something else. To me that makes you a dishonest sleazeball.

[capn_billl]

Originally Posted by Chotu

Big ship not monitoring radar?? No one on watch? Just droning along running over everything that doesn’t have AIS?

I can’t even begin to list all the maritime crimes in your example.


.

Happens everyday.

I've been on Freighters that other than ME, repair tech. the Bridge "watch" was either dozing, playing computer games, or watching porn.

IN BROAD daylight, in the Houston shipping channel recently a container ship collided with a fuel barge. You would think both ships are large enough to see each other, and had plenty of room to pass.

No calls were made on the radio before collision.

Unless you call by name, impossible without AIS, and personally talk to the bridge, you can bet they don't see you, or know you are there.

Facts of life.

I can't tell you how many times I've called a ship on a collision course By name, because I DO have AIS, and after calling several minutes hear a toilet flush in the background as they key the mike to answer.

And once you are 30 miles offshore, no one is going to see your AIS except other ships in your vicinity. This from a guy who is as paranoid about the GUbment as anyone.

I'm against mandates, and I have a separate breaker to the AIS unit, but it stays on unless I'm being shadowed by another ship in a remote area.

[donradcliffe]

Originally Posted by capn_billl

Happens everyday.

IN BROAD daylight, in the Houston shipping channel recently a container ship collided with a fuel barge. You would think both ships are large enough to see each other, and had plenty of room to pass.

No calls were made on the radio before collision.

Absolutely not true at all.

The NTSB has investigated several accidents in the Houston Ship Channel and similar
waterways in which a lack of effective communications contributed to the cause or severity of
accidents.
This was not the case, however, with the Genesis River/Voyager tow accident. Pilot 2
on the Genesis River radioed the Voyager as soon as he began having difficulty controlling his
vessel, giving warning to the towing vessel’s relief captain that an emergency situation was
developing. The Genesis River pilot continued to communicate with the Voyager, informing the
relief captain of his continued difficulty in controlling his ship. When the pilot determined that a
collision was likely unavoidable, he informed the relief captain, telling him to “sound your general
alarm…get everybody up.” He repeated his warning again, radioing the Voyager to “wake
everybody up on that, uh, Voyager.” The pilot continued to keep the Voyager informed, stating
“I’m gonna be swingin’ your way real soon,” and finally, “work with me…we’re gonna collide.”
While communications between the two vessels could not prevent the accident, the Genesis River
pilot gave the Voyager relief captain early warning of danger; allowed time for the Voyager captain to be notified, come to the wheelhouse, and assist with the situation; and ensured that the crew was
awake and alert when the accident occurred.

[Kelkara]

Originally Posted by skipmac

Have had several break-ins in a couple of different homes over the years, manage to catch one of them and busted one other. I can guarantee none of them would have had the resources nor the smarts to put together AIS tracking on my boat to absence from my house on land. The overwhelming majority of the house burglars are opportunistic.

I'm happy you live somewhere that all smart people earn an honest living ... but it doesn't take a lot of smarts to follow you home from the marina one day to link boat to house, and many people (honest and otherwise) who work around the water know how AIS works. You don't have to be rich to be a victim, just an easy mark, sure they're opportunistic, whether that opportunity is a key under a doormat, or an announcement that the house will be empty.

[rslifkin]

Originally Posted by skipmac

Have had several break-ins in a couple of different homes over the years, manage to catch one of them and busted one other. I can guarantee none of them would have had the resources nor the smarts to put together AIS tracking on my boat to absence from my house on land. The overwhelming majority of the house burglars are opportunistic.

Now if you were mega rich and had a house full of Picassos then you would have a whole different class of burglar trying to track down your movements. But then anyone with that level of wealth also has a serious alarm system as well.

Exactly this. I worry far more about people noticing the house looks unoccupied, or a random sketchy person going to the restaurant at the marina and noticing my slip is empty than someone trying to correlate my location to an opportunity to take something. Especially considering my boat isn't documented, so knowing the boat name doesn't directly tell them where I live or anything. They'd have to put in more effort to link all of that stuff up.

[skipmac]

Originally Posted by Kelkara

I'm happy you live somewhere that all smart people earn an honest living ... but it doesn't take a lot of smarts to follow you home from the marina one day to link boat to house, and many people (honest and otherwise) who work around the water know how AIS works. You don't have to be rich to be a victim, just an easy mark, sure they're opportunistic, whether that opportunity is a key under a doormat, or an announcement that the house will be empty.

I don't see that sarcasm refutes any of my claims but FYI I've lived in a wide variety of places from cities to suburbs to the woods from FL to New England and the patterns are pretty much the same.

Also have three neighbors as well as my best friend from high school that are former or retired LEO. All pretty much agree.

But further, here's some data from the FBI.

1. 65.1% of people personally know their thief, meaning there’s a very good chance your neighbor or acquaintance could attempt to rob you.

2. The average burglary lasts only 8 to 10 minutes.

3. Only 12% of all burglaries are planned in advance. Most thieves admit a break-in was an impulse decision

Based on these facts it won't matter if they see your AIS track or not. A former employee or neighbor knows your patterns or just a random criminal comes by, sees you aren't home, does a 10 minute smash and grab and gone.

[Stu Jackson]

I don't think anyone is going to convince the paranoics that their fears are ungrounded. Chotu's last long post is evidence of that. But he's also the guy who thinks all butyl tape is the same, so take that and his and others' unreasonable paranoia for what it's worth.


We sailed out of one marina for 10 years and another for 18. My wife often came with me. Our house was unoccupied for weeks at a time when we went cruising or on vacations (Europe, New Zealand, etc.). We left a light timer on in a room - I know, big deterrent there!


Anyone who knew us could tell our boat, and US(!!!), were gone, gone, gone. Some of them even knew where we lived.



Only time our house got burglarized was when we were visiting my in-laws for two weeks over Xmas and some goons broke in, stole our TV and some jewelry. Had nothin' to do with boating.

[Kelkara]

Originally Posted by skipmac

12% of all burglaries are planned in advance.

I'd just prefer that these guys aren't planning on my house.

[Anders]

Originally Posted by wingssail

Many satellites are now capable of picking up and forwarding ais signals so being away from land does not protect you from being tracked.
.

I'm aware of that but how likely is it that the satellites will pick up a transmission from a class B AIS specially if you manage to turn off msg 27? I've no idea and since I currently have no need for an AIS I've not tried to find out.

[s/v Jedi]

Originally Posted by skipmac

3. Only 12% of all burglaries are planned in advance. Most thieves admit a break-in was an impulse decision

Only 12% of caught burglars planned it… most of those are never caught.

In general: this thread is ridiculous; for all of us AIS isn’t required so when people don’t want it or don’t want to transmit then they have every right to do so and no-one else here has any say over that.

[smj]

Originally Posted by s/v Jedi

Only 12% of caught burglars planned it… most of those are never caught.



In general: this thread is ridiculous; for all of us AIS isn’t required so when people don’t want it or don’t want to transmit then they have every right to do so and no-one else here has any say over that.

[emoji1303][emoji1303][emoji1303][emoji1303][emoji1303]

[lucseawalker]

Can you connect just a 3G or 4G radome to OpenCPN without having a radar display? and see radar target via openCpn?

Originally Posted by Dockhead

Cheap for sure, but yikes.



To go without a plotter/MFD he can use OpenCPN, which has a good radar plug-in. This works with a number of radars, but I can tesitfy that it works flawlessly with the Navico 3G and 4G radars. A used 3G radome will be dirt cheap and works pretty well.


OpenCPN can also use data from a black box AIS.


But a 7" Vulcan or Zeus MFD, especially one which is a generation or two obsolete, will cost peanuts, and is vastly better than using a fragile home computer or IPad.



AIS Type B has been replaced with a new type some call B+. B+ is better, but B is good enough. These are being sold cheap as they are now obsolete. Used will be even cheaper, but make sure you can still put your MMSI into it -- some of them can only be reprogrammed once before going back to the factory.


If you are going to be single handing and not always keeping a watch (which I don't recommend), then you REALLY want to be broadcasting AIS so that people see you. You really should not use a receive-only AIS.


You will also want to be sure that your radar reflector is up to snuff.

[Tupaia]

Originally Posted by lucseawalker

Can you connect just a 3G or 4G radome to OpenCPN without having a radar display? and see radar target via openCpn?

Yes - RJ45 - Ethernet socket in PC and Radar Plug in.
https://opencpn.org/OpenCPN/plugins/navicoradar.html
Works with other radars too.
Very sophisticated with full control of dome and will convert acquired target using ARPA to a pseudo AIS target giving estimated course, speed and CPA.

[skipmac]

Originally Posted by s/v Jedi

Only 12% of caught burglars planned it… most of those are never caught.

In general: this thread is ridiculous; for all of us AIS isn’t required so when people don’t want it or don’t want to transmit then they have every right to do so and no-one else here has any say over that.

Would have to reread all the posts to confirm all the other comments, which I'm not going to do, but can assure you that I would be the last person to tell anyone what he/she can or cannot do. 100% if someone doesn't want to transmit AIS then that is his or her right. I am just really curious about the reasons for such reluctance.

My opinion and experience, regardless of who or how, planned or opportunistic, the odds of a burglar tracking your boat on AIS and going to rob your house is approaching zero.

[jordanbigel]

Originally Posted by Chotu

Big ship not monitoring radar?? No one on watch? Just droning along running over everything that doesn’t have AIS?

I can’t even begin to list all the maritime crimes in your example.

I agree there are "maritime crimes" committed in this example. But it sounds to me, from all the question marks, that you doubt that this really happens. Happens - as in plural - you bet it happens. Not monitoring radar? Check! No one on watch? Check! Just droning along until it ran into me? Check! That's exactly what happened, to me. The ship had radar (and ARPA), but no one was looking at them. (this was pre-AIS).

Don't believe it can't or won't or doesn't happen. It does, it did and it will again. AIS is another arrow in our quiver of tools to prevent it from happening. If you are out in the ocean and you have an AIS and don't have it on you are making a big mistake, just like if you had a radar, and was down below, and you didn't have the radar on. To be clear, this is what happened to me - I was down below briefly, not using my radar, the ship's crew was off doing lord knows what, but also not looking at their radar. Kaboom.

To summarize: Both radar and AIS only work if you turn them on.