[time-nuts] Story in the Economist about GPS jamming
Scott McGrath
scmcgrath at gmail.com
Tue Jul 30 18:46:24 UTC 2013
It doesn't It simply increases the risk that GPS will be made unavailable due to events outside the operators control Hence system risk profile is high
Was not so high when LORAN was available as aviation, maritime and timing applications could gracefully degrade to LORAN in the event GPS was unavailable
Now if GPS availability is denied we are back to maps bowdoins sextants and chronometers for navigation except for the vanishingly small number of ships and planes equipped with INS
Scott
Sent from my iPhone
On Jul 30, 2013, at 1:28 PM, "Lester Veenstra" <lester at veenstras.com> wrote:
> Yes. LOS jamming of the civilian code is easy; However whey do you think the
> use of LEO aids this?
>
>>> Any competent engineer could have told the powers that be that a
>>> satellite system based in LEO has a relatively high risk profile from
>>> the Universe/hostile activity/spoofing and jamming
>
>
> Lester B Veenstra MØYCM K1YCM W8YCM
> lester at veenstras.com
>
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