How GPS Works



this episode is brought to you by the air force collaboratory GPS is important to everything in our lives that is why we are totally replacing it wait what in a couple days the Air Force is launching another new GPS satellite into space GPS to f5 is the fifth upgraded satellite and a long-term plan to make GPS faster more accurate and more efficient which is awesome not just because I can't find anything more than a mile from my home without it but also because it's used in everything from ATMs to dog collars to farming equipment the first generation of the Global Positioning System was created by the Air Force in 1973 for doing complex things like finding lost soldiers and instantly figuring out the math required to launch a missile from a mobile platform GPS as you and I know it started in 1989 with the launch of the first GPS two satellite the new network was open completely to the public in the year 2000 the GPS network is made up of 24 operational satellites and some extras for backup for satellites always have a line of visibility to your receiver at any time of day your receiver gets information on the location of at least three of the satellites around you and the distance between you and those satellites and using those measurements let your receiver pinpoint where you are it's called trilateration now to do this all the GPS satellites and receivers don't just have to know where they are they have to know exactly what time it is when they're sending their positions say it's exactly noon and you check your GPS if one of those satellites think that it's 12:01 it's gonna mess up your position it might think you're moving that's why every satellites got an atomic clock in it that is accurate to a billionth of a second and every receiver uses a quartz clock that constantly resets itself to match its time to the last one it got from the satellites and that's also why GPS isn't just used in positioning anymore it's also used in timekeeping situations where everything needs to be synchronized perfectly stock market trades use the atomic clocks in the GPS Network because just a fraction of a second could change the ownership of billions of dollars it's also used in ATMs with more and more of Our Lives becoming dependent on GPS it's not surprising that a massive upgrade is underway type 2f satellites like the one being launched in a few days are considered interim upgrades that have a 12 year lifespan improved clocks and a new type of signal for everyday use and by 2020 we'll be using type 3 satellites they're gonna have newer clocks that are accurate to a fraction of a billionth of a second super important for military and financial uses they will also have increased signal strength and accuracy while GPS is accurate to about 20 feet the new type 3 network will be accurate to an arm's length I don't know if that's like tall guys arm or my arm or like a baby arm or what but I feel like my eyes might be able to take it from there regardless if you're interested in the GPS network our sponsors over at the air force collaboratory want you to help them decide where to launch a type 2f satellite that is going live in spring of next year so head over join the collaboratory and you can weigh in on where the members of the Air Force Space Command will position a 150 million dollar satellite that will provide positioning and timekeeping for billions of people so go launch a satellite and subscribe here for more dnews visit the airforce collaboratory at Air Force comm slash collaboratory work with real Airmen to solve some of the Air Force's toughest science and technology challenges your idea could change everything

37 thoughts on “How GPS Works

  1. Fake space, cell phone towers are going up uninvited by the millions, for your GPS needs.

    All i see is CGI images of space & satalites.

  2. I like it, very good explained , the GPS technology improve our lives .: 1.Save time – “Time is money”-people in the transportation business have realized how true the statement is.

    2. Optimize resources – GPS Fleet tracking solutions allow you to monitor your vehicles and get detailed insights on fuel usage, driver behavior, engine idling, etc. in real time.

    3. Reduce insurance costs – Insurance companies provide special discounts on vehicles that are equipped with GPS tracking systems.

    4. Maximize vehicle utilization – You can get the most out of your transportation vehicles by using a GPS tracking system.

    5. Superior route planning – With the help of GPS tracking data, you can identify routes that save both time and money. Smart route planning will reduce unproductive work and eliminate unnecessary fuel expenses.

    6. Improve Safety – Improve the safety of your field personnel by monitoring your fleet in real-time. In case of untoward incidents, you can provide direct assistance and support to your drivers. GPS fleet management systems can also help you implement two-way communication between drivers and fleet managers.
    GPS acest sistem îți permite să obții acces rapid și simplu la monitorizare flota auto, supraveghere gps, monitorizare flota auto prin GPS, urmarire gps, localizare gps, monitorizare gps, localizare flota auto, management flote auto, sisteme monitorizare gps, urmarire auto.
    Beneficii: urmaresti consumul de carburant şi uzura prematură a maşinii – prin analiza stilului de condus, imbunătăţeşti siguranţa, reduci orele suplimentare platie, informaţii legate de viteză, distanţe parcurse, trasee, staţionările efectuate, eşti competitiv, hartă detaliată la nivel de stradă, reduci timpii morţi, vezi pe harta rutele vehiculelor pe o anumită perioadă, evidența vitezei de deplasare, reduci costurile legate de mentenanţă, localizezi bunurile firmei, reduci excesele de viteza, creşti numărul de transporturi efectuate, datele pot fi prelucrate și interogate online la orice oră, perspectivă exactă asupra flotei și poziției vehiculelor monitorizate.
    source: http://gps1.ro

  3. it should explain why my bank does not have my direct deposit until like 3am of the day I'm paid. profiteering may be afoot…

  4. Could we plant something permanently on the moon instead? It would seem to have fewer moving parts and be more stable.

  5. no one ever dose any thing about it. I've been text every one. telling um what's going on just for make out with two girls that were from Mexico.

  6. their is a fucken group of fucken hit men that killed my family. just last year. and Connerd all of Greeley

  7. I think you got it all wrong.. your GPS system says that I got to be killed by a hell of a lot of hit men…. from Greeley Colorado 970371-2295.

  8. Hello guys I saw a beautiful app and I liked share it with you, with this app you will be find out the nearest nearby shopping centers and hotels near to you anywhere, where ever you are inside the country but outside by GPS and navigation by voice ,check it in android app and give it 5 stars if you like it
    https://play.google.com/store/apps/details?id=gps_route_finder_nearby_video.navigation.direction
    https://youtu.be/uFgnVCVNiSU

  9. You need 4 satellites for an accurate location.

    This video was 4 years ago.

    4 is a character in BFB.

    I have 4 accounts.

    I JUST LISTED 4 THINGS. HOLY

  10. what a cum sipping lowlife !!! LMFAO !!!
    USAF ? that ya best work u can offer ?
    how pathetic you can be @jewtube !!!

  11. i have question please answer. im curious. why smartphone with gps module doesnt need big antena dish. why 1 fiber wire antena can do the job. thank you.

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  13. อยู่ที่ไหนก็สวยเลยอะคริบโหดๆ🇷🇺🇷🇺
    FC. 🚛🚛🚛 306 🚛🚛🚛 🇺🇸🇺🇸🇺🇸

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