For those of you who understand the implications of this experiment... "SHIT"
A few weeks ago I did an experiment with cell phone reception vs altitude. (Sorry I forgot to publish the results untill now.) I was testing the possibility for use of cell phones at verious altitudes...
First of all, I made sure that at the surface level I had good reception.
-Full bars at 500' AGL, (Above Ground Level)
Second, I also made sure that I had line of sight to at least one if not more cell phone towers throught the course of the experiment.
-Trust me, I am very aware of where the towers are!
As I climbed reception did indeed go down.
-By about 3000' AGL I was down to about 1 bar.
-I had absolutly no reception at 4500'AGL
-Several of us checked our phones and there was ablsulutly no inkling of sevicability at 5000'AGL for any brand of phone or cell phone service provider. This was the case even when holding the phone out the window for optimum reception and least iterferance from the Feraday Cage like properties of the aircraft.
I was only able to climb to 6000' AGL due to the service ceiling of the aircraft of 10,000' MSL and ground elevation of about 4000'MSL, but I think that it is very unlikely that we would have been able to re-aquire signal by climbing higher.
RESULTS: It is very unlikely that cellphones could be used above 5000' AGL.
If anyone has questions about my methods or sees flaws in my experiment, please comment. I will be able to retest if needed.