The telephone receivers in New York are for land users only. They're not made to accommodate air travellers. So Flukes theory is fcuked. So much for people on 9/11 flights having phoned reletives from those planes.Originally Posted by Fluke
You may wonder why you can’t just turn on your cellphone while in an airplane and have it work. Since today’s cellphone networks were explicitly designed for use by people on the ground, the towers broadcast their signals laterally, to cover as much ground as possible. They don’t fire their signals upward, in the direction of an airplane. Combine that with the airspeed of a commercial jet, which is far too fast for cellphone towers to reliably transfer a signal from one to another, and you can see why you won’t just be able to use your cellphone in a plane as you would on the ground. Therefore, special technologies and systems need to be put in place in order for it to happen at all.Please make note.Though the focus of this topic has largely been on the social faux pas of using your phone on a plane, the actual statement by the FCC is only concerned with whether or not it should approve one specific technology required to place calls from a plane using your mobile phone. This technology has been used by international airlines for years and consists of installing a small cell tower on the plane itself (commonly called a "picocell") that transmits calls from the air to the ground. Use of picocells in airplanes has been banned in the US, but other countries have not had a problem with allowing them. (In fact, when international planes with picocells fly into the US, they have to turn them off until they exit US airspace.)
How would in-flight calling actually work? | The VergeUse of picocells in airplanes has been banned in the US
Last edited by Pragmatic; 22-06-2014 at 12:48 PM.
Had flight MH370 and the 9/11 planes been fitted with 'Picocells' then yes phone calls from those planes could/would be possible. Unfortunately none were so phone calls never happened.
Just because they're not made to accommodate air travellers, does not mean that cell phones would not work. They may work on a limited basis....perhaps cutting out often.
Originally Posted by Latindancer
No LD. There is no "may". They don't work without a 'Picocell' fitted pure and simple. LD have you ever heard a phone ring on a flight? Have you ever used your mobile to receive or send a call on a plane? No one's come forward yet to say they have. Strange that all those calls being made from the doomed 9/11 planes got through and relatives could make out the transmissions clearly when 'Picocells' are banned in the US. No calls were made from those 9/11 flights.Originally Posted by Pragmatic
Ok...I was just throwing the idea out there.
But how did the authorities explain the phone calls then ?? I haven't researched it.
I too haven't research that. No point really as it'll be complete BS anyway.Originally Posted by Latindancer
This is from a guy replying to a thread.
LD please read the whole link. It's quite informative. 911 Cell Phone Calls From Planes? Not LikelyDear Ted, I was reading your article on Rense.com on cell phones in flight, yesterday I made 2 flights with a motorola i205 nextexl phone, 1st flight, I had my cell off and then turned it on I suspect a little under 10,000 feet and well over 250 knots in a Boeing 737-400 and could not get ANY signal while still over a major metro area (Seattle). 2nd flight same day I left my phone on during takeoff, and before even reaching 3000, feet and slower than 250 knots( over the San Francisco Bay area)( as there is a speed limit that close to a large airport)like about the time the flaps were coming up the cell had lost its signal. I know this is unscientific but if a newer phone (3 years) since 911 can't maintain a lock I highly doubt a 2001 phone could maintain a lock.
Ok - so everyone who is flying soon test it out. Simples.
Amazing, extreme but revealing reaction to my simple statement that "they MAY work on a limited basis, perhaps cutting out often".
And :
ENT is not taking his medication.....still.
OK...since the phone calls have become an issue, a quick Google reveals a lot :
From Wikipedia : http://en.wikipedia.org/wiki/Communi...ber_11_attacks
According to the 9/11 Commission Report, 13 passengers from Flight 93 made a total of over 30 calls to both family and emergency personnel (twenty-two confirmed air phone calls, two confirmed cell phone and eight not specified in the report). Brenda Raney, Verizon Wireless spokesperson, said that Flight 93 was supported by several cell sites.[3] There were reportedly three phone calls from Flight 11, five from Flight 175, and three calls from Flight 77. Two calls from these flights were recorded, placed by flight attendants: Betty Ong on Flight 11 and CeeCee Lyles on Flight 93 [4]
Alexa Graf, an AT&T spokesperson, said it was almost a fluke that the calls reached their destinations.[3] Marvin Sirbu, professor of Engineering and Public Policy at Carnegie Mellon University said on September 14, 2001, that "The fact of the matter is that cell phones can work in almost all phases of a commercial flight."[5] Other industry experts said that it is possible to use cell phones with varying degrees of success during the ascent and descent of commercial airline flights.[5]
After each of the hijacked aircraft struck the World Trade Center, people inside the towers made calls to family and loved ones; for the victims, this was their last communication. Other callers directed their pleas for help to 9-1-1. Over nine hours of the 9-1-1 calls were eventually released after petitioning by The New York Times and families of the WTC victims. In 2001, many cell phones did not yet have texting or photography capabilities that came by the mid-2000s.
And there's an interesting link here, which gives (as far a my quick look shows) unbiased info for both sides, regarding the calls : http://www.consensus911.org/point-pc-4/
Yet another link says : "we have received reports that cell phones do work from aircraft. Other evidence that cell phone calls are possible from jetliners in flight comes from a study by Carnegie Mellon researchers that monitored spectrum frequencies generated by cell phone transmissions during commercial passenger flights. They found that an average of one to four cell phone calls are made during a typical flight. 2 It may be, however, that such calls are not made at high altitudes.
In an apparent tacit acknowledgement of the difficulty of making cell phone calls from a jetliner at altitude, the FBI's 2006 report describing phone calls from Flight 93 explicitly attributes only two calls to cell phones, both of which occurred late in the flight when the plane's altitude was low".
And there's a lot of info here :
http://letsrollforums.com/9-11-fligh...s-t20794.html?
These were from only the first page of Google results.
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Last edited by Latindancer; 23-06-2014 at 02:58 PM.
LD I asked for one person who's heard a phone ring onboard a flight to come forward. I asked for any one person to come forward to say that they've received or sent a call whilst travelling on a flight. No one has, so far.
Facts from my links show that it's virtually, if not impossible, to receive or make calls from a moving plane. Signals from a mobile basically only travel in a horizontal path. Not upwards or downwards as there would be no point.
Yes,but can they say hand on heart that those calls came from those planes? Answer is no, unless they were onboard to actually witness those calls. Of those 30, so called, calls only 2 were reportedly from mobiles. You'd think that everybody would be reaching for their mobiles once they realised what the situation was.According to the 9/11 Commission Report, 13 passengers from Flight 93 made a total of over 30 calls
Last edited by Pragmatic; 23-06-2014 at 03:38 PM.
Cancelled
Last edited by Pragmatic; 23-06-2014 at 03:58 PM.
indeed, the whole affair is full of contradictions, we will never know what happened really. Without the release of the Pentagon video footage, that will just prove what a bunch of liars they are, they will keep their "story line" like good soldiers being exposed after violating their orders.Originally Posted by Pragmatic
What we do know what happened then was the illegal invasion of a country and the mass surveillance of the American public, with 911 as a poor excuse.
According to Pragmatic's link, cell phone calls CAN in fact be made successfully, right up to 7,000 feet ! And I'm sure that passengers on a hijacked jet had no problem trying repeatedly to connect, therefore succesfully connecting....according to this chart, anyway.
Altitude (in feet)
2000 feet 75% successful
4000 feet 25%
6000 feet 17%
8000 feet 8% * includes three calls made while climbing; last successful call was made from just over 7000 feet.
Of course, Airphones have no connectivity problem. They are MADE for aeroplanes, and it seems that the majority of the 9/11 calls were made by Airphones.
I fly a lot, and must attest that I have never heard a phone ringing on a flight, even on commuter flights where the plane flies over land all the way and not too high.Originally Posted by Pragmatic
Inadmissible - anything coming from a Carnegie named entity is about as reliable as Piwi putting forth an article on the IDF blogsite about Palestine.Originally Posted by Latindancer
Didn't know you could send SMS messages from Airphones. Must try it out.Originally Posted by Latindancer
Well, if you Google it, there are so many results stating that cell phone calls are possible, that it remains entirely plausible.
In other words, any doubts about calls being made can't be taken seriously . Except in the minds of TD experts, anyway![]()
Show us facts not assumptions.Originally Posted by Fluke
But would you be travelling at 500 mph also? Plus you've never read this link, have you? 911 Cell Phone Calls From Planes? Not LikelyOriginally Posted by Fluke
Let's Roll
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