In message , Tony Fi
nch writes:
>On Mon, 1 Mar 2010, Poul-Henning Kamp wrote:
>I don't need to tell Poul-Henning about LORAN-C, [...]
No, you don't need to:
http://phk.freebsd.dk/loran-c/
http://phk.freebsd.dk/AducLoran/
:-)
--
Poul-Henning Kamp | UNIX since Zilog Zeus
In message <0abeeaf7-591c-4e21-a058-2e05e23e6...@noao.edu>, Rob Seaman writes:
>I didn't say "backup", I said "fallback" [...]
Now you're just cleaving semantics, trying to argue that Mercedes
owners in fact *should* carry a sextant, without actually sound
that silly ;-)
>Of course, LORAN is its
On Mar 1, 2010, at 6:21 AM, Poul-Henning Kamp wrote:
> In message <99a2c4d3-3c72-4c18-a1e1-f1b63e5d9...@noao.edu>, Rob Seaman writes:
>
>> GPS is being built into critical infrastructure, [...]
>
> Ohh, I don't disagree with that being patently stupid, without a
> good backup system.
I didn't s
On Mon, 1 Mar 2010, Poul-Henning Kamp wrote:
> Rob Seaman writes:
> >
> > GPS is being built into critical infrastructure, [...]
>
> Ohh, I don't disagree with that being patently stupid, without a
> good backup system.
I don't need to tell Poul-Henning about LORAN-C, which AIUI is much harder
to
In message <99a2c4d3-3c72-4c18-a1e1-f1b63e5d9...@noao.edu>, Rob Seaman writes:
>GPS is being built into critical infrastructure, [...]
Ohh, I don't disagree with that being patently stupid, without a
good backup system.
I just don't see it as having anything to do with UTC, and I think
that your
You did note the section (http://catless.ncl.ac.uk/Risks/25.95.html#subj1):
"A test done in 2008 showed that it was easy to badly spoof ships of the
English coast, causing them to read locations anywhere from Ireland to
Scandinavia."
GPS is being built into critical infrastructure, for instance,
In message , Rob Seaman writes:
>RISKS Digest on "the growing threat of jamming to satellite navigation
>systems":
>It sure would be peachy to retain a capability to fall back on
>traditional navigation techniques. Access to mean solar time as
>provided by UTC is part of the recipe.
I can imagi
RISKS Digest on "the growing threat of jamming to satellite navigation systems":
http://catless.ncl.ac.uk/Risks/25.95.html#subj1
It sure would be peachy to retain a capability to fall back on traditional
navigation techniques. Access to mean solar time as provided by UTC is part of
the
