It is easy to jam a simple GPS receiver. Harder to jam a military receiver. In a conflict a jammer of any kind is pretty much a beacon that says "here I am". It is one of the bigger problems of jamming, you have to radiate RF. So either you have to be very close to your target or have a powerful jammer.
Simple civilian jammers are easy, like the one a truck driver might use to prevent his boss from tracking him, It only has to cover a few feet. But try and jam a jet flying at 40,000 feet or a navel carrier task force. On Tue, Jul 30, 2013 at 5:50 AM, Scott McGrath <[email protected]> wrote: > 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 > > Yes GPS is/was oversold. > > Trouble is Clarkes law applies here (any sufficiently advanced technology > is indistinguishable from magic). And this applies double to the > technological illiterates in DC > > See Sen 'Tubes' Stevens for the canonical example > > Sent from my iPhone > > On Jul 29, 2013, at 12:46 PM, "J. Forster" <[email protected]> wrote: > > > It seems to me that GPS has been oversold as the be all, end all system > > that made all other systems obsolete and GPS has become all but an > > indespensible utility. > > > > Reports like this, could well be used to promote a backup, like LORAN or > > eLORAN, just as public buildings have backup generators. > > > > YMMV, > > > > -John > > > > ================== > > > > > >> > >> > http://www.economist.com/news/international/21582288-satellite-positioning-data-are-vitalbut-signal-surprisingly-easy-disrupt-out?fsrc=scn/tw/te/pe/outofsight > >> > >> -Bill > >> > >> > >> > >> > >> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
