It also bears mentioning that the cellular phone
system was designed and licensed as a "Terrestrial" service (as opposed to an
"Aeronautical" one) under the FCC rules this would not authorize the use
of cell phones when in the air.
ElectroMagnetic Interference (EMI) is
an extremely complex situation. The bottom line is the FAA just
wants to prevent your flight deck instruments from taking you where you don't
belong.
Imagine an approach to minimums in fog at night and
someone in back fires up their cell phone to call home and keep dinner warm,
then at 200 feet your Glideslope suddenly says your way too high! Now if
your flying daytime VFR in severe clear it's not an issue. But it can (in
theory) happen, that's why the rules were written the way they
are.
Now
there are aeronautical phone systems that are designed (and licensed) to be
used when airborne. They have been tested extensively and installed to
exact specifications to prevent any interference with the flight
instruments. Some of the folks on this list probably have some
experience with them and can speak to it themselves.
I
would also agree with an earlier posting that discussed the definition of
"emergency" as relating to an aircraft emergency rather than a patient
one.
Jim
low-time cessna driver
amateur radio operator NØWUU
EMT-P
former
flight medic (in another life)
Mr
Mom (part-time)
chief
scout camp fire builder
principal
light bulb changer
etc
etc etc...............
Thats what i was thinking. During my Search & Rescue
training, we were taught they are "safe" to use in the air, but the cell
companies were complaining to the FCC they didnt' know how to bill for
multiple towers being used at once. Don't they have better things to
do, like make a cell phone bill that you can actually understand?
C.M.Davis, FP-C
Ncline7@aol.com wrote:
It
has always been my understanding (after having it explained to me by a
tech at Pac. Bell) that the problem was not locking up multiple towers,
but with knowing how to bill for the calls. since the signal does open
multiple sites, they all could not bill for the same call, and they could
not determine who is the rightful vendor was. So, it was easier just to
say "no cells."
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