SailNet Community - View Single Post - AIS "extremely vulnerable to hackers"
View Single Post
  #12  
Old 10-22-2013
SVAuspicious's Avatar
SVAuspicious SVAuspicious is offline
Mermaid Hunter
 
Join Date: Oct 2006
Location: on the boat - Chesapeake
Posts: 3,439
Thanks: 0
Thanked 115 Times in 102 Posts
Rep Power: 8
SVAuspicious will become famous soon enough
Re: AIS "extremely vulnerable to hackers"

Quote:
Originally Posted by TakeFive View Post
As with the other VHF channels, I would expect that the USCG has sensing equipment that can triangulate the location of the transmitters for these false signals. And since AIS needs to re-transmit its info every 2 to 10 seconds, those transmissions may actually be much EASIER to locate than a single hoax voice transmission.
Yes. Radio direction finding (RDF) is built into Rescue 21. Some USCG small boats and even Towboat/US towboats have RDF capability.

Pseudo-doppler RDF is both state-of-the-art and inexpensive. You can build one yourself for about $300US and use any FM radio for direction finding. It's fun. Some ham radio clubs have radio fox hunts that use a number of different technologies, some quite simple, to good effect.
__________________
sail fast and eat well, dave
S/V Auspicious
AuspiciousWorks.com
beware "cut and paste" sailors.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook