Re: Galileo - what for?



"Mark McIntyre" <markmcintyre@xxxxxxxxxxx> wrote in message news:ns09r1d073jjb1gvdi6s61mq34skncdl8i@xxxxxxxxxx
> On 28 Dec 2005 14:24:03 -0800, in sci.geo.satellite-nav , "peter"
> <prathman@xxxxxxxxxxx> wrote:
>
>
>>But certainly there are plenty of people in NY and DC who regularly use
>>civilian GPS units and it would be known immediately if their operation
>>were affected.
>
> But would they actually have been checking it, the day after a major
> terrorist incident?
>
>>There was an official announcement shortly after 9/11
>>that GPS had not been deliberately degraded or jammed and that there
>>were no plans to do so.
>
> Ah, we need to believe Govt Announcements now... I'm british, call me
> sceptical... :-)
> Mark McIntyre
> --
Skepticism is good, Mark, but you shouldn't let it blind you.
People certainly did use civil GPS in those days you questioned.
I know a civilian pilot who regularly flies emergency medical missions.
In the days immediately following the events of 9/11, he happened to fly
a mission which took him across down-state New York.
His GPS navigation accuracy was normal.

However, his subjective feeling of the empty skies did affect him deeply.
He could fly direct point-to-point through what's normally
the busiest airspace in the world.
And the air/ground radio-communications channels were nearly silent.
That was notably abnormal.

.



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