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Peter wrote: > >> It doesnt take a signal to wipe out the whole band. Contrary to popular > >> belief, one strong discrete carrier can take out a spread spectrum signal. > >> Actually it doesnt have to be terribly strong. > >Since that completely goes against the entire theory on which spread spectrum > >is based, its time to put some proof on the table instead of just quoting that > >as fact. > > Actually, no. There was a detailed GPS jamming report, widely > publicised at the time, at http://www.navcen.uscg.gov/ but it may no > longer be there. I have a copy somewhere which I can email you if you > like. > > A 1 watt transmitter, at 30000ft, can jam GPS over a radius of about > 500 miles, IIRC. > That is a single frequency transmitter ? Far more likely it was a broadband source. What you are asserting is not logical. Rejection of single frequency components is what spread spectrum is all about. So again, cite sources please. |
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