Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 30-08-2013, 15:28   #91
Registered User
 
BigBoater917's Avatar

Join Date: Jun 2013
Boat: 1973 Jacobsen 110'
Posts: 112
Re: AIS: A Creepy Experience.

Quote:
Would you even consider transmitting AIS in your land-based life?

'Just a thought.
Would you put an orange flag on a bicycle if you were going to be in heavy traffic?

In all honesty many class B units aren't picked up until you're only a few miles away. Often I'll only get an AIS target indicator but no course, speed, name or destination from small targets.
__________________

__________________
20 years and too many miles to count under the stern.
BigBoater917 is offline   Reply With Quote
Old 30-08-2013, 15:43   #92
Senior Cruiser
 
Kenomac's Avatar

Cruisers Forum Supporter

Join Date: Jan 2012
Location: Somewhere in the Adriatic Sea
Boat: Oyster 53 Cutter
Posts: 8,518
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by Jammer Six View Post
Seeing other boats isn't nearly as important as them seeing you.
Sorry my friend... but you got that bass-ackwards.
__________________

__________________
Kenomac is offline   Reply With Quote
Old 30-08-2013, 15:44   #93
Registered User

Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
Posts: 3,435
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by BigBoater917 View Post
Would you put an orange flag on a bicycle if you were going to be in heavy traffic?

In all honesty many class B units aren't picked up until you're only a few miles away. Often I'll only get an AIS target indicator but no course, speed, name or destination from small targets.
Just guessing, you have an old class A unit? Please update, as it doesn't understand class B transmissions.

1) class B doesn't transmit destination
2) If you are receiving a class B message, it either contains dynamic or static data, and either message would give you more data than you are seeing.

CLASS B AIS REPORTS
__________________
DotDun is offline   Reply With Quote
Old 30-08-2013, 16:40   #94
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
Re: AIS: A Creepy Experience.

From what I can work out neither vessel here was equipped with nor were they using AIS.

I can understand why one would not want to advertise one's position when anchored but underway, particularly in a high traffic area and at night or in poor weather, AIS should be used.

If there are concerns regarding security for small boats then it could be turned off as necessary at the discretion of the captain.

I don't have AIS but then I don't travel at night, in bad weather or in high traffic areas. If I ever get anywhere near Singapore an AIS transponder will be on my shopping list.
__________________
Rust never sleeps
Boracay Blog.
Boracay is offline   Reply With Quote
Old 30-08-2013, 17:08   #95
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,376
Re: AIS: A Creepy Experience.

I dont have experience with it, but it seems to me something that you dont know if the other boat is using or not ......leaves you in t he same position as not having it.... making sure you stay out of the way on your own volition....
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 30-08-2013, 17:44   #96
Senior Cruiser
 
Jim Cate's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 11,471
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by Jammer Six View Post
Seeing other boats isn't nearly as important as them seeing you.
Hmmm...

Before AIS I often SAW other boats/ships and took action to avoid a collision with them. In many cases I'm sure that they didn't see me due to poor viz conditions and my small size. They did nothing. Despite their not seeing me, there was no collision or even close call because I did something.

I believe the same is true with the advantage of AIS.

Best of all is when both parties are aware of the other one.

Cheers,

Jim
__________________
Jim and Ann s/v Insatiable II , lying Port Cygnet, Tasmania once again
Jim Cate is online now   Reply With Quote
Old 31-08-2013, 06:09   #97
Long Range Cruiser
 
MarkJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,828
Images: 25
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by Jim Cate View Post
Best of all is when both parties are aware of the other one.

Cheers,

Jim

Even better... both parties, but especially the ships, have the AIS digitally recorded so that if theres any problem the court is gunna know about it.

This information is recorded in both boats (if you have a SD card in) but also every other ship in the coverage area. Witnesses!


Mark
__________________
Notes on a Circumnavigation.
OurLifeAtSea.com

Somalia Pirates and our Convoy
MarkJ is offline   Reply With Quote
Old 31-08-2013, 06:18   #98
CF Adviser

Cruisers Forum Supporter

Join Date: Aug 2009
Boat: Custom Van De Stadt 47 Samoa
Posts: 3,755
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by MarkJ View Post
Even better... both parties, but especially the ships, have the AIS digitally recorded so that if theres any problem the court is gunna know about it.

This information is recorded in both boats (if you have a SD card in) but also every other ship in the coverage area. Witnesses!


Mark
I am not aware that there is any 'record' capability on my AIS (Vesper), and I don't think it has an SD slot. Have I overlooked something?
__________________
estarzinger is offline   Reply With Quote
Old 31-08-2013, 06:26   #99
Registered User

Join Date: Feb 2009
Posts: 107
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by Tingum View Post
You sound paranoid
Paranoia is just another word for good sense when everyone is out to get you.

Can you say NSA?
__________________
Morgan3820 is offline   Reply With Quote
Old 31-08-2013, 06:53   #100
Long Range Cruiser
 
MarkJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,828
Images: 25
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by estarzinger View Post
I don't think it has an SD slot. Have I overlooked something?
If you havent overlooked the SD slot then maybe you dont have one.

Ummmm does your Vesper run on ProAIS2 on your PC?

Because that has a Log to File of the Serial Data (last tab).

OpenCpn shows the NMEA window but I cant seem to save that or copy the info.
__________________
Notes on a Circumnavigation.
OurLifeAtSea.com

Somalia Pirates and our Convoy
MarkJ is offline   Reply With Quote
Old 31-08-2013, 06:55   #101
Registered User

Join Date: Feb 2013
Location: NH
Boat: sabre 28
Posts: 127
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by Kenomac View Post
AIS: A Creepy experience.
Would you even consider transmitting AIS in your land-based life?
I don't think your concerns are unfounded. I grew up in the late 60's & 70's so the whole big brother thing kind of freaks me out. Land based systems, OnStar comes to mind. This is all being marketed to us in the name of safety.

When I take to the water, I'm doing so to get away. I don't want anyone, friend or foe to know where I'm at.
__________________
misfits is offline   Reply With Quote
Old 31-08-2013, 07:32   #102
Registered User

Join Date: Mar 2013
Location: NYC
Boat: Kadey Krogen 42
Posts: 5
Re: AIS: A Creepy Experience.

Many of you have already said this, but one needs to really figure out the risk assessment for each of the mentioned risks.
It seems to me that getting run over by a large ship should be the worst case. With an AIS transceiver that is far less likely to happen, as they will see. Also, when you have the ship’s name, they will respond on the radio if you call them.
IMHO If you are more concerned with people knowing where you are, then getting run over, that’s a whole different discussion.

Richard
__________________
wxman is offline   Reply With Quote
Old 31-08-2013, 07:38   #103
bcn
Registered User

Join Date: May 2011
Location: underway whenever possible
Boat: Rangeboat 39
Posts: 2,769
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by MarkJ View Post

OpenCpn shows the NMEA window but I cant seem to save that or copy the info.
OpenCPN provides the VDR (Voyage Data Recording) plug-in for this purpose.

Comes also very handy if you want to test some aspects of the software with previously recorded data.

bcn
__________________
bcn is online now   Reply With Quote
Old 31-08-2013, 07:47   #104
DoÖ or do not
 
s/v Jedi's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 9,198
When you only receive half the boats and ships around you, I find it more probable that your receiver only gets one of the two channels somehow (or it is an old/cheap one that could only do one channel or gets overloaded with more than 5 targets) rather than that the other half of boats and ships don't transmit AIS.
__________________
s/v Jedi is offline   Reply With Quote
Old 31-08-2013, 08:06   #105
Registered User

Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
Posts: 3,435
Re: AIS: A Creepy Experience.

Quote:
Originally Posted by wxman View Post
Many of you have already said this, but one needs to really figure out the risk assessment for each of the mentioned risks.
It seems to me that getting run over by a large ship should be the worst case. With an AIS transceiver that is far less likely to happen, as they will see. Also, when you have the shipís name, they will respond on the radio if you call them.
IMHO If you are more concerned with people knowing where you are, then getting run over, thatís a whole different discussion.

Richard
This thread is all about AIS enabling 'people knowing where you are'. I don't understand why it's 'a whole different discussion'.

Nobody is doubting the value of AIS in the act of navigation. Although, it's not as if vessels without AIS are getting 'run over' at high frequency. The major benefit of AIS is alleviating the 'pucker factor' for the helmsman. Collisions will still happen even though the vessels involved have AIS, as the root cause of most accidents has nothing to do with what technology is on the vessel.
__________________

__________________
DotDun is offline   Reply With Quote
Reply

Tags
ais, enc

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 14:24.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.