[time-nuts] Story in the Economist about GPS jamming

J. Forster jfor at quikus.com
Tue Jul 30 14:03:39 UTC 2013


I think the largest concern about jamming is for civilian uses, rather
than military, mainly because military receivers are designed and built to
be more immune. Also, military systems are far more likely to have good
grade INS.

Furthermore, there are probably a couple of orders of magnitude more
civilian systems in use.

-John

==================



> Exactly what do you mean by "... based in LEO has a relatively high risk
> profile from the Universe/hostile activity/spoofing and jamming..."?
>
> Other than a LOS, in a jammers immediate area, GPS is not subject to
> jamming, and for the critical users, ie, the DOD, very difficult to jam,
> even in a LOS.
>
> The LEO makes it harder to jam since the received signal strength is
> higher
> than would be practical from GeoSync orbit, not easier,  as is implied my
> Mr. McGraths comment.
>
> Lester B Veenstra  MØYCM K1YCM W8YCM
> lester at veenstras.com
>
> US Postal Address:
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> HC84 Box 89C
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> GPS: 39.33675 N  78.9823527 W (Google)
> GPS: 39.33682 N  78.9023741 W (GPSDO)
>
>
> Telephones:
> Home:                     +1-304-289-6057
> US cell                    +1-304-790-9192
> UK cell                    +44-(0)7849-248-749
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> Jamaica:                 +1-876-456-8898
>  
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