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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[@Lesics]

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

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

[@CB0T]

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

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Savage 😂😂

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i lost my connection there

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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..

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Very informative Video. Thanks a lot !!

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This is great😀! Thanks for the video

[@pkj251]

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

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Explain in such a lucid manner!

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Wonderful explaination

[@PeterPerhac]

"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

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

[@hexprince]

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

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Such an informative video! Thank you!

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Very very nice explaination.Thank you sir

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

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Bagusnya explanation ni 👍🏻

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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

[@youssefabdulmuti9854]

Perfect illustration.

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Excellent Demostration !!

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so nicely and precisely explained. thank u for the stuff

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Thank you Bro for very imformative contain..

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Awesome wealth of Knowledge!

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

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

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Great work👍

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Thanks for sharing this information....

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nice explanation...!!!

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

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Thanks to LE for making Telcom more easier to understand.

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

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

[@rDnhey]

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

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Thanks a lot guy This is Great information for me

[@utkarshjindalin]

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

[@MrTamilindian]

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

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Really helpful! Thanks

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wow great video

[@justmeajah]

wow! super easy to understand!

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Thank you so much @Lesics 💖💖✔

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Great video

[@mayurdugar03]

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

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

[@sestalks]

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

[@cloverushwana1888]

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

[@joshuapitong899]

Thank you so much.❤

[@nakulankurmullam2982]

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

[@cabdulaahigaabow8466]

Perfect in action of electromagnetic power.

[@alicedevaney5723]

Holy shit. That made things very clear. Thanks

[@squidwartztortellini8812]

Keep going !

[@J23_]

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]

Why does it happen though

[@sriharsha7709]

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

[@volodumurkalunyak4651]

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)

[@JEFFPLAYER]

good video!!!

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

[@user-rz6wu3eo8k]

1:56, daaaaaamn

[@topten7064]

You are great

[@muntee33]

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.

[@mydream6326]

good job.

[@lazylyricist9015]

This is very good

[@JeevanSamagar]

7:32 welcome ☺️❤️

[@photon_phi902]

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

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nice video!

[@Shj731]

Thankyou!!!👍

[@girishgouda6455]

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

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Nice video

[@pavansalina8499]

Wonderful information and thank

[@victorfranca17]

Thanks!

[@Veer-ss6et]

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

[@hebamsaud6813]

thanx for video ^^

[@nobelhossain5889]

Good video

[@maxm7494]

que video tan chingonsisimo

[@shreyanshdas7481]

I like the hacker has a mask.😂😂

[@kingamv107]

Pitstu

[@nax1807]

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

[@indiantech8503]

It's really high tech...😍

[@manualLaborer]

1:53 Keep up the good work