[137441] in North American Network Operators' Group

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Re: US Warships jamming Lebanon Internet

daemon@ATHENA.MIT.EDU (Steven Bellovin)
Sat Feb 12 23:25:04 2011

From: Steven Bellovin <smb@cs.columbia.edu>
In-Reply-To: <m28vxk60ap.wl%randy@psg.com>
Date: Sat, 12 Feb 2011 23:24:59 -0500
To: Randy Bush <randy@psg.com>
Cc: North American Network Operators Group <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


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







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