[time-nuts] GPS Spoofing

Magnus Danielson magnus at rubidium.dyndns.org
Wed Jul 31 10:47:51 UTC 2013


On 27/07/13 13:19, Brian Alsop wrote:
> If you know your LORAN has a 1/4 mile accuracy then you stay 1/2 mile
> away from bad things.
>
> The trouble with GPS is that it is so good, people don't use common
> sense and give obstacles a wide berth.

The published civilian precision of GPS isn't much better than LORAN-C, 
but it gives much better performance now for many reasons, including 
many birds in view and SA turn-off.

You do have hit the point, normally GPS works so darn good for most 
usage, that you perceive it to always be there, out of flaws. It's now 
with GPS receivers in phones that people start to learn that you can be 
in radio-shadow...

GPS is a good service when it is there, but when it isn't quite there or 
gone, you need to have a backup-plan, and know when to execute it.
LORAN-C is a good back-up plan.

Cheers,
Magnus



More information about the Time-nuts_lists.febo.com mailing list