[time-nuts] The Demise of LORAN (was Re: Reference oscillator accuracy)

Poul-Henning Kamp phk at phk.freebsd.dk
Sun Nov 15 18:08:30 UTC 2009


In message <4B004084.5060101 at rubidium.dyndns.org>, Magnus Danielson writes:
>Chuck Harris wrote:

>The trouble is that civilian infrastructure [...]

That's actually not the biggest problem, the biggest problem is access.

If you put a jammer at the top of a tall building (by RC helicopter ?)
getting up there to pick it up is non trivial for the people hunting 
it, they may need court orders to get access to service stairs etc.

Strictly speaking here in Denmark, the police would not have authority
to kick in a door to stop a GPS jammer, until the PT&T has found
it a spectrum violation, warned the owner of the premises, possibly
in writing, if it is a rental building.

It is not obvious that a signal strong enough to jam GPS would
necessarily be found to be a spectrum violation in the first place.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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