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Originally posted by bl4ke360
reply to post by Now_Then
Unless he travels back to 2001 of course, this doesn't seem like a very good experiment seeing as we are in 2009 and the phone lines/connections will be much different.
As well, several mountain ridges in the Appalachians transverse Westmoreland and Somerset County, with elevations exceeding 3000 ft. The highest point in the state is Mt. Davis, with a summit of 3,213 ft. Even some of the mountain passes, along the Lincoln Highway (Route 30) rise to ~2400-2900 ft in elevation and tend to house cell towers and equipment. The field near Shanksville where United Airlines Flight 93 crashed is at 2200 feet above sea level.
Laurel Hill summit (~2,600 ft) is located ~14 miles to the west of the crash site, at the Westmoreland-Somerset County border. The cell tower is owned by American Towers, which operates towers for the cell phone industry. This tower is 329 ft tall, located at 2701.9 ft, with an overall height of 3060 ft. The second tower is also owned by American Towers.
Near Jennerstown, ~10 miles to the west of the crash site, this tower is owned by Cingular Wireless. It has been here since 1997. The total height of the tower is 275 ft, together with a ground elevation of 2210 ft, the overall height is 2500 ft. The second tower here is owned by Crown Communications, which owns and operates cell towers, and has been here since 1997
Combine the elevation of the land surface with the low flying altitude, the plane was flying only ~2500 feet above the ground when the cell phone calls were made. For comparison, the World Trade Center north tower was ~1,368 feet tall. It's entirely reasonable that cell phones would work at double that height.
posted by thedman
reply to post by turbofan
As for Barbara Olson - ever consider she used someone elses card to make call
Lot simpler explanation that all the others I have heard
Originally posted by Darthorious
All I can say is this,
I was at 35,000 feet over the ocean and it had no signal I had left LAX and after getting over the ocean lost the signal until I arrived in Hawaii.
I was just curious when I took the trip what would happen to my cell phone reception and pretty much lost it the whole time.
Originally posted by Rewey
Not sure what it's like in the US, but it might be worth finding out when you guys switched from analogue to digital service for cell phones... If you were using analogue networks in 2001, and are on digital networks now, would that render the whole experiment moot?
Originally posted by turbofan
That being said, newer technology could only improve, so digital networks
in theory should have better reception and extended coverage.
Funny that someone said Flight 93 made calls at 7-8000 feet (AGL?), as
the aircraft was 'said to be' in a highspeed dive...upside down...and on a
Originally posted by thedman
Great at distorting things aren't you?
What was said is that only 2 calls made near end of flight were from cell
Nothing about being made while in dive or upside down...
Originally posted by turbofan
I'll be getting on a plane within the next couple of months. I'd like to take a couple of cells phone aboard and document the signal quality and call duration.
Coincidentally, the aircraft will be an American Airlines, Boeing 737. The flight will leave Toronto (Pearson International) and land in Miami Florida before connecting to an island south of Florida.
This means I will be over some very dense cellular networks and there will be no excuse for lack of tower distribution over these major cities. Therefore, I should be able to get a signal at altitude
Two cell phones will be available: an older model Sanyo SCP-2300, and a RIM Blackberry Pearl 8120 phone using a Rogers cell plan.