[time-nuts] GPS from a window seat
Thomas A. Frank
ka2cdk at cox.net
Sun Oct 4 20:28:17 UTC 2009
> I have read that there have been studies with a spectrum
> analyzer system on planes that have shown that compliance with the no
> radiating device rules and electronics off during takeoff and
> landing is
> far less than 100% though I certainly would not personally
> violate the law whether or not the probability of it causing a problem
> is significant. Apparently one or two cellphones can be seen
> with cell systems during takeoff and landing on many flights -
> most of them unintentionally left on.
Which is why the onus should be on the aircraft manufacturers to make
certain that there is no potential for life threatening danger from
A blanket ban is the usual response from a bureaucracy to something
that they cannot actually control, and which they do not wish to put
the effort into correcting.
But that doesn't change the fact that if a drunk businessman or a
bored 6 year old with a new toy can stealthily endanger all the
passengers on a plane, the responsibility - and liability - should be
with the aircraft designer.
Bringing it back to the normal topic at hand, I wonder - if you had a
radio receiver tuned to WWV, and a GPS with a 1pps, if you could see
the relativistic effect of flying at 500 knots at 30K feet and log it
on your computer?
Tom Frank, KA2CDK
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