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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@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
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
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
9 ай бұрын
😂😂😂😂 0:18
@redareda-yb9vu
9 ай бұрын
😂😂😂😂😂 0:18
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
5 жыл бұрын
totally agree brother!!
@aamiaudios2125
5 жыл бұрын
Me to also
@Kabodanki
5 жыл бұрын
that delicious easy browny point
@thibaut5345
5 жыл бұрын
Wrong claims is not valuable at all. There is nothing to be learnt from this video.
@1schwererziehbar1
5 жыл бұрын
Yes they do see the value. That's why they watch it.
Whoever did the 3D is the reason why i enjoy all of these videos.
@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.
You think you know a lot, until you realize you have so much more to learn.
@asphalt325
3 жыл бұрын
Lol, only you think you know a lot
@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
3 жыл бұрын
@@electron6241 I actually understood that - 100% true
@electron6241
3 жыл бұрын
@@hsadanalytics-toptoolsreso6443 what we learnt from Google & KZread are 0.01% only.
@electron6241
3 жыл бұрын
@@hsadanalytics-toptoolsreso6443 Google also don't has answer for some questions
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 !!
I really love this channel. I never even thought to wonder about this technological challenge, but the explanation is fascinating.
OMG look spectrum of this frequency: 1:53 ! Great video!
@Kabodanki
5 жыл бұрын
oh mama
@syedahmedjilanee6041
5 жыл бұрын
Savage 😂😂
@gerarddunne956
5 жыл бұрын
🤣🤣🤣🤣
@AnoopSingh-jj4hp
4 жыл бұрын
i lost my connection there
@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..
Great Videos, It's really a treat to see high-quality explanations of engineering topics!
great video!! i love the way this channel talks about the physic behind techniques
This channel explains concepts like no other!! Grateful to have such content for free.
sir , you are providing a depth knowledge in a very simple manner , thanks alot for that .
thank you for everything you do. really appreciate the hard work you put into your content
"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
Discovered your channel yesterday. Great explanation. This video was better than the course on my university. :D
Wow! Amazing Thank you for making me fall in love with technology even more
Very informative Video. Thanks a lot !!
شكرا لكم ،أتمنى لكم الخير والتوفيق ، وأتمنى أن يكون هناك المزيد من الفيديوهات عن علم الإتصالات في قناتكم العربية 🖤
Nice to see a video that explains what my job helps with on a larger scale. Thanks!
Such an informative video! Thank you!
This is great😀! Thanks for the video
I always watch learn engineering videos in my spare time and it's worth learning through it. Always providing knowledge, Keep It Up, Team!!!!
Thank you for the knowledge sir.. The 3D animation is great.
Wow glad I discovered this channel very informative thanks
so nicely and precisely explained. thank u for the stuff
Very very nice explaination.Thank you sir
Im learning so much tbh. thank u so much for these videos!!!
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
2 ай бұрын
Why does it happen though
Super useful information. Loved it. Thank you man for making this so clear to understand 🙂
Engineering milestones described per second is highest of this channel. Adbhut..
Excelent video! Thank you!
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
Explain in such a lucid manner!
This topic is great for me . Thank the creator !
Excellent Demostration !!
i have learned more after watching like 5 of of your videos than months of reading books. the graphics and analogies help tremendously
Perfect illustration.
Great video. Thank you
Awesome wealth of Knowledge!
What a channel. 100/100 loved it
this is something new to me. thank you for the knowledge.
Really awesome! I highly appreciate Learn Engineering.
I worked on LTE software, this video is an accurate description
@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)
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
Thank you Bro for very imformative contain..
Wonderful explaination
This video was very informative, clear and concise. Automatic sub and like!
in the RYB balls falling in cup example, a smaller ball can still fall into a larger cup
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
Thanks for sharing this information....
Wow what an explanation.love u sir..... Bt How can People dislike it. May be they are "out of the world".
Great video! Hope to see more in depth videos about this topic. Thanks!
🔥🔥🔥 These fires came while listening 🎧....
Had always been curious since childhood on how one phone rings amongst many kept together. I think I got the clue today. Thanks! 🙏🤗
Best example given it really helps a lot
Nice presentation. Please, explain details about the multiple access.
Hats off to Learn Engineering for such a complicated subject made easy to learn. Really.
Thank you for such a great video and your dedicated hard work. God bless you.
Great video. This is exactly what I wanted to know. Thanks!
Thnk U. I only hear about 2G_Spectrum-'SCAM'
Great work👍
Thanks a lot guy This is Great information for me
Bagusnya explanation ni 👍🏻
it's very informative 😮👏🏻
Very good and informative vodeo. Thankx savin bro.👍☺☺
I like the hacker has a mask.😂😂
@kingamv107
5 жыл бұрын
Pitstu
nice explanation...!!!
Damn.... It's hard to comprehend , just imagine that someone made it before that we understood it.
Thank you so much @Lesics 💖💖✔
Thanks to LE for making Telcom more easier to understand.
Really helpful! Thanks
Perfect in action of electromagnetic power.
Woah this is sonuseful and well presented But the ball fountain analogy has a quirk Smol bols get into large holes
Great video 🙏🙏🙏🙏🙏
wow! super easy to understand!
Holy shit. That made things very clear. Thanks
Great , thanks for explaining in very easy , pls come up with more topics
1:52 - Good lord! Look at the bazungas on that one.
@sokra
4 жыл бұрын
I found those very educational
@AnoopSingh-jj4hp
4 жыл бұрын
oh yeah!
@orialtman6176
4 жыл бұрын
Yeah, a real set of chonkoobas! Some real honkhonkingos! A couple 'a bingzangomadobas! Some serious moobooyahonkomisstobadinglebangleoompaloompahs!
@pradeepkumarreddykondreddy7048
4 жыл бұрын
How to create hyperlink with video seek time, like you did for 1:52 ??
@asitranjanswain834
3 жыл бұрын
@@pradeepkumarreddykondreddy7048 you just did it :p
I am doing my masters in Communication system the concepts here are so insightful
Thank you so much.❤
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.
Great video
wow great video
Can you do that with antenna? I mean the difference size or length or possible locations up down?
7:32 welcome ☺️❤️
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.
good video!!!
1:53 Keep up the good work
Wonderful information and thank
That's very educative... Thanks allot
OFDM was the saviour for intersignal interferrence and multipath rayleigh profile delay spread, a truly remarkable technique to modulate signals,
شكرا جدا هذه أفضل قناه هندسية علي الاطلاق طريقة عرض بسيطه وشيقه شكرا لكم من مصر
1:56, daaaaaamn
Keep going !
Transmitted data are mainly encrypted. So, no two users can receive same data. Different users are assigned different frequencies to avoid interference.
nice video!
good job.
This is very good
Hello, what increases or decreases the transmission power? Voltage or amperage?
really useful & helpful video. thanks~!
To the point!! ❤️