Why airlines don't allow cell phones

The Federal Aviation Administration (FAA) just announced that most electronic devices can now be used on airplanes, all the way from takeoff to landing. But you still can't make a call on your cell phone during a flight, and all devices must be set to "flight mode." Why can't you make calls on flights? To get a better understanding, let's use some trigonometry.



Airplanes communicate and navigate using a band of radio waves called the airband, which uses frequencies between 108 and 137 MHz (or megahertz). Radio waves are electromagnetic waves, or waves of light, which travel through space like the sine function. Waves with higher frequencies move up and down, or "oscillate," faster, while lower-frequency waves oscillate more slowly. Here are examples of waves that have different frequencies:


How do the frequencies of cell phones compare to those of the airband? Well, it depends on the carrier (Verizon, AT&T, etc.), but for the most part they're between 500 and 2500 MHz. So cell phones send and receive radio waves that are close to the Airband, but are slightly higher in frequency.

If you were to make a call on a plane, then the cell phone's radio waves and the airplane's radio waves would add together. The airplane's waves are probably a lot stronger than the waves coming out of your phone. So what happens if we add a very weak cell phone signal (say, at 700 MHz) to a strong airplane signal at 120 MHz?


The sum of the two waves looks pretty close to the airplane's signal. But what happens if the cell phone signal were a lot stronger?


Suddenly, the sum looks quite different from the airplane's signal, and that's what worries the FAA. While there are mathematical tools that tease apart signals with different frequencies that have been added together, pilots and officials are concerned that cell phone radio waves could still interfere with the communication and navigation of airplanes.

If cell phones instead used frequencies that were really far away from the airband, then the risk of interference would be even smaller (even if the phones emitted really strong signals). Why do you think that is?

28 comments:

  1. This is a very serious matter you rise here, When ever i travel to airplane, I also don't take my laptop with me and due to this pay to do an assignment, This is only for safety.

    ReplyDelete
  2. This is a really significant issue that you raise. I always bring my phone when I fly, and I do it mainly out of concern for my safety.

    ReplyDelete
  3. You raise a really important point here. When I fly, I always bring my phone, primarily out of worry for my safety. You receive the top MCA Live Transfer Leads will act as a business consultant for your organisation to increase sales.

    ReplyDelete
  4. Cell phones are not allowed on us planes after takeoff because we are told that it could interfere with plane instruments,
    personally thnk it was to hang on to in plane phone calls sales for which the airline makes a profit am also under the impression that the no cell phone policy is being reviewed at this time.

    ReplyDelete
  5. OH, okay! I always used to wonder why people are told to switch their phones to airplane mode when the flight is about to take off and finally this query of mine has also been resolved. I just bought the dissertation proposal help from an online site and I randomly clicked open this page that proved to be quite informative.

    ReplyDelete
  6. For the Federal Aviation Administration, safety is the highest concern. Portable electronic devices, including cell phones, iphones in karachi pakistan, emit radio signals that officials worry will interfere with aircraft communications or flight control, navigational and other on-board electronic equipment.

    ReplyDelete
  7. I'm not sure why airlines don't allow cell phones, but I imagine it has to do with preventing people from making calls during takeoff and landing. Maybe they're also concerned about people using their phones to take pictures or record videos during flights.

    ReplyDelete
  8. I assume it has to do with keeping passengers from making calls during takeoff and landing. Airlines don't allow cell phones. They might be worried about passengers using their phones to capture pictures or film videos while flying as well. While looking for someone to do my assignment for me cheap in the UK, I came across your website, which I think to be rather intriguing. Keep up the great job on your website, please. I'll return to read more of this informative content.

    ReplyDelete
  9. Airlines do not allow cell phones on flights for a number of reasons. The main reason is that cell phones can interfere with the airplane's navigation and communication systems. This can cause major safety hazards for the passengers and crew on board. Additionally, cell phones can be a distraction for pilots, which can also lead to safety concerns.

    ReplyDelete
  10. I think it's great that there are so many best app development companies out there that can help create innovative solutions for businesses. However, I think it's important to consider why airlines don't allow cell phones. This is for the safety of the passengers and crew, as the phones can interfere with the aircraft's navigation systems and communications. It's important to remember that the safety of everyone onboard should always be a priority.

    ReplyDelete
  11. This article provides valuable insights and useful information for anyone curious about why airlines don't allow cell phones, and I would highly recommend it to others.

    ReplyDelete
  12. Due to some radiation issue, mobile phones are not allowed in airlines. However, when the plane take off then you can use your cell phones. I know much about the radiation issue because I am providing Electrical Lighting Installation services in the USA and sometimes, I also face some radiation issue in electric work.

    ReplyDelete
  13. I think due to some radiation purpose, it is not allowed in airlines. I have experienced this when I visited Vancouver for Video Production Vancouver services. So, air crew asked me to switched off my cell phone.

    ReplyDelete
  14. Hi there, interesting topic! While it's understandable that cell phones might be disruptive on flights, it's also important to consider the potential risks of electromagnetic interference. In the meantime, it's always a good idea to take care of yourself and indulge in some self-grooming treatment to pass the time. And if you need any healthcare services, Meri Sehat is a great online platform to find doctors and book appointments from the comfort of your own home. Stay safe and healthy!

    ReplyDelete
  15. What's up, this is a brilliant article. colorblock icon military jacket I seriously enjoyed reading. Nevertheless, there are plenty of off-topic comments. I seriously suggest you get rid of it or something like that. That is only my opinion. All the best!

    ReplyDelete
  16. I would strongly advise anyone to read this woodoku post if they are interested in learning more about why airlines don't allow mobile phones.

    ReplyDelete
  17. Thanks for your amazing blog....its really a more informative. To share an useful posts ahead too for us.
    average cost of uncontested divorce in virginia

    ReplyDelete
  18. Airlines have historically restricted the use of cell phones during flights due to safety concerns and potential interference with aircraft navigation and communication systems. Although modern aircraft are equipped with advanced technology that can withstand certain levels of electromagnetic interference, the Federal Aviation Administration (FAA) and other aviation regulatory bodies have implemented precautionary measures to ensure flight safety. Best AC Repairman near me

    ReplyDelete
  19. Gear up like a true Hawkins High School student with the Hawkins Varsity Jacket! This jacket captures the essence of the show's small-town charm and thrilling mysteries. Whether you're a fan of the Upside Down or simply love a vintage-inspired look, this jacket will transport you to the heart of Stranger Things' captivating universe.

    ReplyDelete
  20. Airlines often restrict cell phone usage during flights due to concerns about electromagnetic interference. The signals emitted by multiple devices could potentially interfere with the aircraft's sensitive navigation and communication systems.
    Why do people from India Immigrate to the US?

    ReplyDelete
  21. OH, okay! I always used to wonder why people are told to switch their phones to airplane mode when the flight is about to take off and finally this query of mine has also been resolved.

    ReplyDelete

  22. Airlines don't allow cell phones for reviews due to potential interference with aircraft communication systems. Safety regulations prioritize avoiding any electronic interference during flight. Passengers can use their cell phones in airplane mode for non-transmitting activities, such as reading, gaming, or taking photos. Reviewing an airline experience is encouraged once the aircraft is safely on the ground. Compliance with these rules ensures a secure and uninterrupted flight experience for everyone.
    abogado de accidentes de moto

    ReplyDelete
  23. Cell phone use is restricted aboard airplanes primarily to prevent potential disruption of vital onboard equipment. Limiting cell phone use helps to improve overall safety by reducing any interference that could jeopardize communication and navigation systems crucial for flight operations, similar to how the N2K-PAC-200W - Cisco 200-Watt Hot Swap Power Supply for N2000 Series is meticulously regulated to ensure smooth operations.

    ReplyDelete
  24. Unlocking success through precision and performance, Amazon KPIs
    serve as the compass in the dynamic world of e-commerce. Like a finely tuned symphony, these metrics harmonize, orchestrating efficiency, growth, and customer satisfaction. They are the heartbeat of Amazon's thriving ecosystem, measuring and steering everything from operational agility to customer-centricity, propelling the company towards unparalleled excellence in the realm of online retail

    ReplyDelete
  25. The primary reason why airlines prohibit cell phone usage during flights is because of the possibility of interference with aircraft communication systems. Even though contemporary aircraft are built to resist electromagnetic interference, taking this precaution guarantees safety in all circumstances. Cell phone electromagnetic signals have the ability to interfere with communication, navigation, and avionics systems. Airlines enforce rules requiring passengers to turn off or put their devices in airplane mode during critical flight phases in order to reduce potential risks. The overall safety of passengers and the integrity of flight operations depend on compliance with these guidelines, even as technological advancements continue to improve aviation safety.
    trucking accidents lawyer

    ReplyDelete
  26. Interesting question! While airlines restrict cell phone usage for safety reasons, the sky's the limit when it comes to mobile app innovation. As a leading Mobile App Development Company In port saint lucie Florida, we thrive on pushing boundaries. Let's discuss groundbreaking ideas that transcend the clouds!

    ReplyDelete
  27. The main reason why airlines forbid cell phone use on flights is safety. Mobile device electromagnetic interference may cause problems for the aircraft's navigation and communication systems. Even though contemporary aircraft are built to resist this kind of disturbance, taking the preventive step assures maximum safety. Furthermore, using a phone while in the plane can disturb the atmosphere and detract from the passengers' overall experience flying. Respecting these guidelines adds to the general safety and comfort of all passengers by fostering a safe and organized atmosphere.
    commercial contract disputes

    ReplyDelete
  28. Thank you very much for this good information. It is very useful for us.divorce in new jersey laws, divorce lawyer in fairfax.

    ReplyDelete