Turn off you phones on Takeoff and Landing

Discussion in 'General Discussion | Travel' started by flynhwn, Jun 15, 2014.  |  Print Topic

  1. flynhwn

    flynhwn Silver Member

    Messages:
    152
    Likes Received:
    206
    Status Points:
    360
    Ever wonder why?
    One reason, and not the only one, is that when your phone switches cell towers (roaming) some phone emit a click that can be picked up on the planes radio. With several phones clicking at the same time the pilot cannot hear the tower. This has caused aborted landings.
    Now you know-one reason.
     
    WilliamQ and blackjack-21 like this.
  2. gregm

    gregm Gold Member

    Messages:
    1,508
    Likes Received:
    2,161
    Status Points:
    1,200
    Another reason is not for the pilot's benefit. Searching for a signal it will never find drains your battery.
     
  3. WilliamQ

    WilliamQ Gold Member

    Messages:
    4,499
    Likes Received:
    14,270
    Status Points:
    10,675
    ... and heats up your phone in some instances.
    We also know that overheated batteries may ....
    that said, setting the phone to airplane mode eliminates the below 3 reasons

    x Searching for / switching cell towers
    x Draining batteries
    x Overheating of batteries

    Same applies for tablets with 3G / LTE connectivity.

    Travel safe!
     
    LETTERBOY likes this.
  4. satman40

    satman40 Gold Member

    Messages:
    2,485
    Likes Received:
    2,462
    Status Points:
    1,325
    Are you saying the harmonic frequency transmitted by the cell phone will disable the pilots radios?

    One must be careful, the pilot has maybe 27 different transmitters and receivers in the cockpit, generating frequency harmonics, that should be filtered out by the circuitry designs in each transmitter and receiver.

    Even the engines generate audio interferences,

    Let's turn the cell phones off, it could lower your sperm count or cause cancer...
     
    anileze and WilliamQ like this.
  5. WilliamQ

    WilliamQ Gold Member

    Messages:
    4,499
    Likes Received:
    14,270
    Status Points:
    10,675
  6. satman40

    satman40 Gold Member

    Messages:
    2,485
    Likes Received:
    2,462
    Status Points:
    1,325
    Sugar drink will kill you along with red meat.

    We all start to die the day we are born,

    Please enjoy the music...
     
    Flyer1976, anileze, ella and 3 others like this.
  7. blackjack-21

    blackjack-21 Gold Member

    Messages:
    1,437
    Likes Received:
    3,000
    Status Points:
    1,910
    If only the battery drain were instantaneous, that would solve the problem. Sadly, the battery may last long enough to give all those around the yappering doofus a resounding headache prior to the overheated battery singeing his earlobe to the extent that smoke comes out of his nostrils, at which time he would have to ask the FA for some water which, while pouring it into his burning ear, would also have to be used to extinguish his flaming pants where he had put the burning hot damn phone down to grab the waterbottle and open the lid to pour it into his ear.

    At that point the smoke in the cabin from his burned pants would result in a diversion to the nearest airport, at which time the phonejerk would be taken off in cuffs and fined over $67,000 for the airline's extra unforeseen costs and lost revenue for missed pax connections, and told to then walk to his destination, since no airline, train, bus, or rental car company would allow him on their equipment from then onward.

    A fitting result for him IMO.
     
    LETTERBOY likes this.
  8. satman40

    satman40 Gold Member

    Messages:
    2,485
    Likes Received:
    2,462
    Status Points:
    1,325
    Today my Iphone said too ho, do not operate, it was 92 outside.

    Viagra has got yo love the I phone low T.

    Honest their are a lot of radios in the chicken pit of an airplane.,

    As pilot in command I do not turn my cell phone off, commercial flight not in command I have been know to cheat. Above and below 10k, just to activate the GPS, and I suspect that is what the rule is about...9/11.
     
    blackjack-21 likes this.
  9. blackjack-21

    blackjack-21 Gold Member

    Messages:
    1,437
    Likes Received:
    3,000
    Status Points:
    1,910
    Canada recently approved cellphone use on the ground and during all other flight movements, including takeoffs and landings, so I guess the danger isn't as significant as thought. But I dread sitting next to someone who feels the need to have their phone in use for the entire flight for nothing more then to say "Hi, you'll never guess where I am" over and over to all his friends, family, neighbors, and the family pets. Add that to all the others who now feel they need to do likewise and you've got a very noisy flight.
     
    Last edited: Jun 17, 2014
    satman40 likes this.
  10. Wandering Aramean
    Original Member

    Wandering Aramean Gold Member

    Messages:
    28,219
    Likes Received:
    61,764
    Status Points:
    20,020
    Got any proof of this? I doubt it.
     
  11. KenMac

    KenMac Active Member

    Messages:
    3
    Likes Received:
    5
    Status Points:
    80
    There is a Mythbusters episode where they essentially debunk the premise that a phone interferes with the avionics on a plane. When they couldn't get a cell phone to have any effect, that got a variable power transmitter and pointed it straight at the system and used multiple times the power any cell phone could emit without effect. I cannot post the link since i am so new, so Google "mythbusters cell phone plane" it should be the first hit.
     
    Wandering Aramean and WilliamQ like this.
  12. satman40

    satman40 Gold Member

    Messages:
    2,485
    Likes Received:
    2,462
    Status Points:
    1,325
    I spoke of frequency harmonics, a fancy name for one signal interfering with another.

    Let's face it cell phone would not be allowed if they interfered with any signal.

    The FCC Rules, with an iron hand.

    Many transmitters with greater power are in aircraft, including a few Ham
    HT's, befor cell phones we use to key the auto patch, and yes it was from the air place, commercial and private.

    I still shut mine off, unless I forget..better safe then sorry.
     
    WilliamQ likes this.
  13. WilliamQ

    WilliamQ Gold Member

    Messages:
    4,499
    Likes Received:
    14,270
    Status Points:
    10,675
    I saw that but IIRC, they wrapped it up by saying not to use it if the airline says so ... or something like that.
    Then again, I might have remembered it wrongly.
    Anyways, most electronics are shielded nowadays and IMO, human error or maintenance issues are what causes accidents.
    Maybe someone might know of some researched statistics that help support my gut feel.
     
  14. blackjack-21

    blackjack-21 Gold Member

    Messages:
    1,437
    Likes Received:
    3,000
    Status Points:
    1,910
    Take two TUMS to help relieve your gut feeling. Helps for me.

    One cellphone or even several may have no effect on an airplane's avionics, but have they also looked at 300/400 or more pax all having their cellphones, tablets, GPS's turned on at once to see the resulting interference, if any?

    Once the powers that be give the go-ahead for nonstop electronics use of all kinds on an aircraft, even those people who now refrain from using theirs when asked not to do so will decide, if everyone else can do so, I'll turn it on too.

    And on a long TATL or TPAC flight of many hours, with many people using their phones, tablets, etc. first searching for a cell tower that isn't there, then deciding to use them for games, videos, reading, or other entertainment and after a while draining the batteries of their devices and then plugging into the seatback sockets to try to recharge at nearly the same time, what drain on the plane's batteries or electrical system will that cause? Overheating problems?
     
    Last edited: Jun 19, 2014
  15. Boraxo

    Boraxo Silver Member

    Messages:
    145
    Likes Received:
    139
    Status Points:
    420
    Completely without any scientific support.
     
  16. blackjack-21

    blackjack-21 Gold Member

    Messages:
    1,437
    Likes Received:
    3,000
    Status Points:
    1,910
    With the new TSA rules about turning on cellphones, tablets, etc. before getting on an aircraft headed to the U.S. from certain foreign destinations, there may be some quiet relief in sight for those of us who'd prefer a quiet flight across the ponds. If the person uses up his battery power on the outbound or connecting flights, and then doesn't recharge his device enough prior to boarding the inbound U.S. destined aircraft, there's a chance that it won't then power up to meet the TSA's new requirements and it may be confiscated, thus ensuring one less noisy pax on those returning flights attempting to be yapping away for the entire 5,487 mile trip or even longer.

    If only it would happen....! Peace and quiet in the air.
     

Share This Page