Understanding Spectrum! | ICT #6

Use of the Internet on the go, or when making mobile phone calls, is made possible thanks to the invisible electromagnetic waves that mobile phones emit or receive. However, did you know that this electromagnetic frequency range, or spectrum, is a highly precious resource. In 2008 the US government made a whopping $19 billion through a spectrum auction. In this video we will look at the scientific reasons why this invisible electromagnetic frequency range is such a valuable resource.
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Пікірлер: 449

  • @Lesics
    @Lesics4 жыл бұрын

    We truly appreciate your support at www.patreon.com/LearnEngineering . Even a $1 support can give us a big boost.

  • @isumitd9586

    @isumitd9586

    4 жыл бұрын

    If in a cell or one BTS , multiple users are using 3G technolgies then what happens, any collisions, interference, leakage of data

  • @fahimhuq2768

    @fahimhuq2768

    3 жыл бұрын

    hey man love these videos -- any way you can add a paypal link also so those of us that don't wanna get another subscription to keep track of can also donate? thanks for your work.

  • @cherylroberts771

    @cherylroberts771

    2 жыл бұрын

    Yes it hurts very much posting online.. urgency is needed. No one is above The Law constitution for all freedom for All..

  • @redareda-yb9vu

    @redareda-yb9vu

    9 ай бұрын

    😂😂😂😂 ‏‪0:18‬‏

  • @redareda-yb9vu

    @redareda-yb9vu

    9 ай бұрын

    😂😂😂😂😂 ‏‪0:18‬‏

  • @ronitnayak4408
    @ronitnayak44085 жыл бұрын

    People making fun of the video do not see the value in such knowledge, available free for everyone on internet. Hats off to Learn Engineering for the content

  • @TheTapabrata

    @TheTapabrata

    5 жыл бұрын

    totally agree brother!!

  • @aamiaudios2125

    @aamiaudios2125

    5 жыл бұрын

    Me to also

  • @Kabodanki

    @Kabodanki

    5 жыл бұрын

    that delicious easy browny point

  • @thibaut5345

    @thibaut5345

    5 жыл бұрын

    Wrong claims is not valuable at all. There is nothing to be learnt from this video.

  • @1schwererziehbar1

    @1schwererziehbar1

    5 жыл бұрын

    Yes they do see the value. That's why they watch it.

  • @Tarodenaro
    @Tarodenaro5 жыл бұрын

    Whoever did the 3D is the reason why i enjoy all of these videos.

  • @EmperorMandla

    @EmperorMandla

    Жыл бұрын

    How can I do a video like this? I'm interested because I would like to integrate it to my lessons. I'm a high school teacher.

  • @chrisframpton7681
    @chrisframpton76813 жыл бұрын

    You think you know a lot, until you realize you have so much more to learn.

  • @asphalt325

    @asphalt325

    3 жыл бұрын

    Lol, only you think you know a lot

  • @electron6241

    @electron6241

    3 жыл бұрын

    There is a saying what we learnt is a size of 🥜peanut but 🌌Universe is infinite ♾️. Knowledge also infinite ♾️ cannot count like numbers 0000000000123456789000000000000..........no end

  • @hsadanalytics-toptoolsreso6443

    @hsadanalytics-toptoolsreso6443

    3 жыл бұрын

    @@electron6241 I actually understood that - 100% true

  • @electron6241

    @electron6241

    3 жыл бұрын

    @@hsadanalytics-toptoolsreso6443 what we learnt from Google & KZread are 0.01% only.

  • @electron6241

    @electron6241

    3 жыл бұрын

    @@hsadanalytics-toptoolsreso6443 Google also don't has answer for some questions

  • @Spacetime23
    @Spacetime232 жыл бұрын

    I will not skip the Ad as a matter of gratitude for the immense value provided through this video. The channel needs to grow. Money in exchange for incredible animation and informative content..... Basic Economy !!

  • @Pikminiman
    @Pikminiman5 жыл бұрын

    I really love this channel. I never even thought to wonder about this technological challenge, but the explanation is fascinating.

  • @CB0T
    @CB0T5 жыл бұрын

    OMG look spectrum of this frequency: 1:53 ! Great video!

  • @Kabodanki

    @Kabodanki

    5 жыл бұрын

    oh mama

  • @syedahmedjilanee6041

    @syedahmedjilanee6041

    5 жыл бұрын

    Savage 😂😂

  • @gerarddunne956

    @gerarddunne956

    5 жыл бұрын

    🤣🤣🤣🤣

  • @AnoopSingh-jj4hp

    @AnoopSingh-jj4hp

    4 жыл бұрын

    i lost my connection there

  • @LShizer

    @LShizer

    3 жыл бұрын

    This comment shows us how similar engineers are to teenage boys. That said I came to the comments looking to see if anyone else noticed that..

  • @omarjarkas2175
    @omarjarkas21752 жыл бұрын

    Great Videos, It's really a treat to see high-quality explanations of engineering topics!

  • @ToanNguyen-wm2zz
    @ToanNguyen-wm2zzАй бұрын

    great video!! i love the way this channel talks about the physic behind techniques

  • @divyarao7866
    @divyarao78662 жыл бұрын

    This channel explains concepts like no other!! Grateful to have such content for free.

  • @ashutoshpandey8680
    @ashutoshpandey86804 жыл бұрын

    sir , you are providing a depth knowledge in a very simple manner , thanks alot for that .

  • @Hambxne
    @Hambxne5 жыл бұрын

    thank you for everything you do. really appreciate the hard work you put into your content

  • @PeterPerhac
    @PeterPerhac Жыл бұрын

    "These sub-carriers are mathematically orthogonal to each other and each of them are modulated individually. We hope this video gives you a clear understanding about what is spectrum." yep, all clear 🙂 great video. My head is exploding. But I mean it, it's a great video. Thank you

  • @beylil5345
    @beylil53455 жыл бұрын

    Discovered your channel yesterday. Great explanation. This video was better than the course on my university. :D

  • @claramelb7476
    @claramelb74765 жыл бұрын

    Wow! Amazing Thank you for making me fall in love with technology even more

  • @ajay6079
    @ajay60795 жыл бұрын

    Very informative Video. Thanks a lot !!

  • @IB.K-77M
    @IB.K-77M9 ай бұрын

    شكرا لكم ،أتمنى لكم الخير والتوفيق ، وأتمنى أن يكون هناك المزيد من الفيديوهات عن علم الإتصالات في قناتكم العربية 🖤

  • @Ice12287
    @Ice122879 ай бұрын

    Nice to see a video that explains what my job helps with on a larger scale. Thanks!

  • @nawmeerahman3020
    @nawmeerahman3020 Жыл бұрын

    Such an informative video! Thank you!

  • @shwethaboobalan373
    @shwethaboobalan3735 жыл бұрын

    This is great😀! Thanks for the video

  • @krupaldeshmukh8392
    @krupaldeshmukh83923 жыл бұрын

    I always watch learn engineering videos in my spare time and it's worth learning through it. Always providing knowledge, Keep It Up, Team!!!!

  • @pkj251
    @pkj2512 жыл бұрын

    Thank you for the knowledge sir.. The 3D animation is great.

  • @jarcohen123
    @jarcohen1235 жыл бұрын

    Wow glad I discovered this channel very informative thanks

  • @harakumarghadai7828
    @harakumarghadai78283 жыл бұрын

    so nicely and precisely explained. thank u for the stuff

  • @sajidurrahman3121
    @sajidurrahman31213 жыл бұрын

    Very very nice explaination.Thank you sir

  • @thea7035
    @thea7035 Жыл бұрын

    Im learning so much tbh. thank u so much for these videos!!!

  • @J23_
    @J23_11 ай бұрын

    Me and my friend would joke around and call each other's mobiles despite standing next to each other. We would always hear a high excruciating frequency wave , I was always sceptical on why. Now it makes a lot of sense watching this video.

  • @rudraxx

    @rudraxx

    2 ай бұрын

    Why does it happen though

  • @hexprince
    @hexprince3 жыл бұрын

    Super useful information. Loved it. Thank you man for making this so clear to understand 🙂

  • @SachinVerma-xo4fj
    @SachinVerma-xo4fj Жыл бұрын

    Engineering milestones described per second is highest of this channel. Adbhut..

  • @juanmiguelcortarello6823
    @juanmiguelcortarello68235 жыл бұрын

    Excelent video! Thank you!

  • @rain-wj6vv
    @rain-wj6vv4 ай бұрын

    I've been looking for a video that explains this info, but just never knew how to ask it, and glad i found your video!!!!!!!!!! Sorted out a lot of qestions I had

  • @herobrine3686
    @herobrine36863 жыл бұрын

    Explain in such a lucid manner!

  • @hxngpxxeth2044
    @hxngpxxeth20445 жыл бұрын

    This topic is great for me . Thank the creator !

  • @ANANTHASANKAR_UA
    @ANANTHASANKAR_UA3 жыл бұрын

    Excellent Demostration !!

  • @smrreevesify
    @smrreevesify2 жыл бұрын

    i have learned more after watching like 5 of of your videos than months of reading books. the graphics and analogies help tremendously

  • @youssefabdulmuti9854
    @youssefabdulmuti98545 жыл бұрын

    Perfect illustration.

  • @nkosiemahlangu1158
    @nkosiemahlangu11584 ай бұрын

    Great video. Thank you

  • @chicku975
    @chicku9753 жыл бұрын

    Awesome wealth of Knowledge!

  • @soundmaster8810
    @soundmaster88104 жыл бұрын

    What a channel. 100/100 loved it

  • @albertvaldez2669
    @albertvaldez26693 жыл бұрын

    this is something new to me. thank you for the knowledge.

  • @ArifulIslam99
    @ArifulIslam995 жыл бұрын

    Really awesome! I highly appreciate Learn Engineering.

  • @sriharsha7709
    @sriharsha77094 жыл бұрын

    I worked on LTE software, this video is an accurate description

  • @volodumurkalunyak4651

    @volodumurkalunyak4651

    2 жыл бұрын

    No, this video is not accurate anymore starting from 3g, even before before LTE. 3g wcdma and 4g LTE greatly improve frequency reuse, so the same frequency can be also assigned to users within different sector if the same cell (3g) or even within same cell sector (4g LTE and MIMO with beamforming)

  • @cloverushwana1888
    @cloverushwana1888 Жыл бұрын

    Notes 1. The information signal is delivered using EM from cellular data to tower. Every EM waves (analog signal) have it own frequency and amplitude. 2. How the signal reach the accurate receiver? The frequency signal differs for every users. Mobile phone will only accept the signal where the signal assigned to it. Every signal has it own data frequency. 3. Other fq will be rejected by phone filter circuit. 4. Each devices has it unique frequencies. Or frequency ranges. So each device has it own fq range. 5. Antenna are capable to transmit signal into this frequency range or band. 6. Every device filtering circuit also allows a fq band. 7. Udung frequency modulation. High fq express as 1, low frequency express as 0. 8. Signal sent over the fq are protected by every device encryption. Which mean only your device can decrypt it. Hacker can’t access the information. 9. As the world is wide, EM is limited. Assigning a unique frequency range yo each user in the world is impossible. Why fq bad is limited and how to overcome. Notes about EM spectrum. - EM energy increase while wavelength decreases. - in order radio wave to Infrared, uv waves and gamma waves. -higher fq of EM, the worse the penetration capability. - Nntilah sambung

  • @comptechphil3332
    @comptechphil33322 жыл бұрын

    Thank you Bro for very imformative contain..

  • @HarishKumarC007
    @HarishKumarC0073 жыл бұрын

    Wonderful explaination

  • @doctorae724
    @doctorae724 Жыл бұрын

    This video was very informative, clear and concise. Automatic sub and like!

  • @utkarshjindalin
    @utkarshjindalin3 жыл бұрын

    in the RYB balls falling in cup example, a smaller ball can still fall into a larger cup

  • @darshinigh3543
    @darshinigh35438 ай бұрын

    Thanks bro I really love these types of subjects than a boring poem and grammar's , I really love the way of learning by Looking in real life

  • @chandanboss7525
    @chandanboss75255 жыл бұрын

    Thanks for sharing this information....

  • @saidas6776
    @saidas67765 жыл бұрын

    Wow what an explanation.love u sir..... Bt How can People dislike it. May be they are "out of the world".

  • @rDnhey
    @rDnhey5 жыл бұрын

    Great video! Hope to see more in depth videos about this topic. Thanks!

  • @JeevanSamagar
    @JeevanSamagar Жыл бұрын

    🔥🔥🔥 These fires came while listening 🎧....

  • @mayurdugar03
    @mayurdugar032 жыл бұрын

    Had always been curious since childhood on how one phone rings amongst many kept together. I think I got the clue today. Thanks! 🙏🤗

  • @gouravmehta4030
    @gouravmehta40303 жыл бұрын

    Best example given it really helps a lot

  • @itjobpreparation3123
    @itjobpreparation31233 жыл бұрын

    Nice presentation. Please, explain details about the multiple access.

  • @arashkhoshghadamnia376
    @arashkhoshghadamnia3765 жыл бұрын

    Hats off to Learn Engineering for such a complicated subject made easy to learn. Really.

  • @sestalks
    @sestalks5 жыл бұрын

    Thank you for such a great video and your dedicated hard work. God bless you.

  • @navindudissanayake1669
    @navindudissanayake16692 жыл бұрын

    Great video. This is exactly what I wanted to know. Thanks!

  • @MrTamilindian
    @MrTamilindian4 жыл бұрын

    Thnk U. I only hear about 2G_Spectrum-'SCAM'

  • @tarunsharma-fr6ov
    @tarunsharma-fr6ov4 жыл бұрын

    Great work👍

  • @asadrafik8323
    @asadrafik83235 жыл бұрын

    Thanks a lot guy This is Great information for me

  • @cloverushwana1888
    @cloverushwana1888 Жыл бұрын

    Bagusnya explanation ni 👍🏻

  • @samsungyoung466
    @samsungyoung466 Жыл бұрын

    it's very informative 😮👏🏻

  • @pp2162
    @pp21625 жыл бұрын

    Very good and informative vodeo. Thankx savin bro.👍☺☺

  • @shreyanshdas7481
    @shreyanshdas74815 жыл бұрын

    I like the hacker has a mask.😂😂

  • @kingamv107

    @kingamv107

    5 жыл бұрын

    Pitstu

  • @movieworld5144
    @movieworld51444 жыл бұрын

    nice explanation...!!!

  • @MishaMF
    @MishaMF5 жыл бұрын

    Damn.... It's hard to comprehend , just imagine that someone made it before that we understood it.

  • @AashiqueHussain_
    @AashiqueHussain_ Жыл бұрын

    Thank you so much @Lesics 💖💖✔

  • @abumahraz5948
    @abumahraz59485 жыл бұрын

    Thanks to LE for making Telcom more easier to understand.

  • @yogitakukreja2296
    @yogitakukreja22962 жыл бұрын

    Really helpful! Thanks

  • @cabdulaahigaabow8466
    @cabdulaahigaabow84663 жыл бұрын

    Perfect in action of electromagnetic power.

  • @nakulankurmullam2982
    @nakulankurmullam29823 жыл бұрын

    Woah this is sonuseful and well presented But the ball fountain analogy has a quirk Smol bols get into large holes

  • @seemashaw6114
    @seemashaw61142 жыл бұрын

    Great video 🙏🙏🙏🙏🙏

  • @justmeajah
    @justmeajah11 ай бұрын

    wow! super easy to understand!

  • @alicedevaney5723
    @alicedevaney57235 жыл бұрын

    Holy shit. That made things very clear. Thanks

  • @girishgouda6455
    @girishgouda64555 жыл бұрын

    Great , thanks for explaining in very easy , pls come up with more topics

  • @FxHnd05
    @FxHnd055 жыл бұрын

    1:52 - Good lord! Look at the bazungas on that one.

  • @sokra

    @sokra

    4 жыл бұрын

    I found those very educational

  • @AnoopSingh-jj4hp

    @AnoopSingh-jj4hp

    4 жыл бұрын

    oh yeah!

  • @orialtman6176

    @orialtman6176

    4 жыл бұрын

    Yeah, a real set of chonkoobas! Some real honkhonkingos! A couple 'a bingzangomadobas! Some serious moobooyahonkomisstobadinglebangleoompaloompahs!

  • @pradeepkumarreddykondreddy7048

    @pradeepkumarreddykondreddy7048

    4 жыл бұрын

    How to create hyperlink with video seek time, like you did for 1:52 ??

  • @asitranjanswain834

    @asitranjanswain834

    3 жыл бұрын

    @@pradeepkumarreddykondreddy7048 you just did it :p

  • @Veer-ss6et
    @Veer-ss6et2 жыл бұрын

    I am doing my masters in Communication system the concepts here are so insightful

  • @joshuapitong899
    @joshuapitong8992 жыл бұрын

    Thank you so much.❤

  • @muntee33
    @muntee335 жыл бұрын

    Could’ve used a more tangible scale for the EM spectral picture, in place or in addition to the solely Hz range.... and another scale describing a relative attribute for the wave form at the top woulda been good also.

  • @Abhisheksharma-lk4ll
    @Abhisheksharma-lk4ll5 жыл бұрын

    Great video

  • @dennisasamoah2213
    @dennisasamoah22133 жыл бұрын

    wow great video

  • @photon_phi902
    @photon_phi9023 жыл бұрын

    Can you do that with antenna? I mean the difference size or length or possible locations up down?

  • @JeevanSamagar
    @JeevanSamagar Жыл бұрын

    7:32 welcome ☺️❤️

  • @_Breakdown
    @_Breakdown Жыл бұрын

    1. The information signal is delivered using EM from cellular data to tower. Every EM waves (analog signal) have it own frequency and amplitude. 2. How the signal reach the accurate receiver? The frequency signal differs for every users. Mobile phone will only accept the signal where the signal assigned to it. Every signal has it own data frequency. 3. Other fq will be rejected by phone filter circuit. 4. Each devices has it unique frequencies. Or frequency ranges. So each device has it own fq range. 5. Antenna are capable to transmit signal into this frequency range or band. 6. Every device filtering circuit also allows a fq band. 7. Udung frequency modulation. High fq express as 1, low frequency express as 0. 8. Signal sent over the fq are protected by every device encryption. Which mean only your device can decrypt it. Hacker can’t access the information. 9. As the world is wide, EM is limited. Assigning a unique frequency range yo each user in the world is impossible. Why fq bad is limited and how to overcome. Notes about EM spectrum. - EM energy increase while wavelength decreases. - in order radio wave to Infrared, uv waves and gamma waves. -higher fq of EM, the worse the penetration capability.

  • @JEFFPLAYER
    @JEFFPLAYER5 жыл бұрын

    good video!!!

  • @manualLaborer
    @manualLaborer Жыл бұрын

    1:53 Keep up the good work

  • @pavansalina8499
    @pavansalina84995 жыл бұрын

    Wonderful information and thank

  • @belloumar7074
    @belloumar70745 жыл бұрын

    That's very educative... Thanks allot

  • @nax1807
    @nax1807 Жыл бұрын

    OFDM was the saviour for intersignal interferrence and multipath rayleigh profile delay spread, a truly remarkable technique to modulate signals,

  • @yousefhesham4317
    @yousefhesham43175 жыл бұрын

    شكرا جدا هذه أفضل قناه هندسية علي الاطلاق طريقة عرض بسيطه وشيقه شكرا لكم من مصر

  • @user-rz6wu3eo8k
    @user-rz6wu3eo8k5 жыл бұрын

    1:56, daaaaaamn

  • @squidwartztortellini8812
    @squidwartztortellini88125 жыл бұрын

    Keep going !

  • @akashverma5756
    @akashverma57562 жыл бұрын

    Transmitted data are mainly encrypted. So, no two users can receive same data. Different users are assigned different frequencies to avoid interference.

  • @gustavonaves6947
    @gustavonaves69475 жыл бұрын

    nice video!

  • @mydream6326
    @mydream63262 жыл бұрын

    good job.

  • @lazylyricist9015
    @lazylyricist90152 жыл бұрын

    This is very good

  • @spiderx01
    @spiderx012 жыл бұрын

    Hello, what increases or decreases the transmission power? Voltage or amperage?

  • @user-mk3wh9nw4i
    @user-mk3wh9nw4i5 жыл бұрын

    really useful & helpful video. thanks~!

  • @mohishrockstar
    @mohishrockstar2 жыл бұрын

    To the point!! ❤️