Re: US Warships jamming Lebanon Internet

[Steven Bellovin <smb () cs columbia edu>]

On Feb 12, 2011, at 11:11 42PM, Randy Bush wrote:

> > Your suspicion may be accurate and accidental.  I rented a car in San
> > Diego the other day -- there was a sign warning that the key fob might
> > not work within 5 miles of the port -- San Diego has a major Navy base
> > -- because of interference from shipboard electronics.
>
> same time, my phone's gps claimed accuracy to 700m in the 10 miles from
> san diego airport.  that is not a lot of good for nav.  luckily i used
> to hang down there in the late '70s and early '80s so kinda knew my way
> around.
That sounds like it didn't have a GPS fix at all, and was instead using cell
site proximity location.  (I didn't check my phone's GPS; my Garmin unit had
no trouble.)


                --Steve Bellovin, http://www.cs.columbia.edu/~smb