Understanding Modulation! | ICT #7

Modulation is one of the most frequently used technical words in communications technology. One good example is that of your FM radio, where FM stands for frequency modulation. In this video we are going to learn the basics of modulation techniques and see how they are applied in modern cellular and communications technologies.
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[@csp405]

It's not able to learn and understand because it's missing all details

[@engineerdulha1582]

Please translate in hindi

[@andydufresne436]

@@csp405 What more can you expect from a 7:25 minute video? This gives a broad and brief idea on Analog & Digital Modulation. I found this useful.
Thank you Lesics for your work❤️

[@keylanoslokj1806]

Professor told us the antenna is L. But you say it's L/2

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Please also make videos on Microcontrollers like Arduino, raspberry and etc........
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[@Timepass_guys]

Can you do a video on Fourier series how helpful in communication systems?

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[@William_Clinton_Muguai]

Simply stated, it helps us to get the components of a signal. e.g. a square wave(digital signal) constitutes of many sine waves(analogue signals).

[@EditorGuru]

Thanks for explaining in so much detail ❤️

[@wisdomchoice2721]

appreciating the illustration facilitating the understanding thank you.

[@HOLLYWOODlosANGELES]

*Merci bien pour ce cours, bien illustré!*

[@TSSomensi]

Amazing as usual, thanks!

[@blissworth]

This video has been very helpful in visualizing modulation techniques and it's advantages
I really don't know how how parents and grandparents used to grasp these concepts without such visual aids.
They have to be the OGs though ngl

[@shwetaammanage8951]

Modulation techniques with simple examples.. Nice sir

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Thanks a lot. You are doing a very noble thing.

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What a beast! SO well explained:)

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PLz make video about Electrical engineering (classification of motor, Work of generator, 2point 3point and 4point stator, nuclear power plant etc)...
Waiting for your reply or videos all the best 😍

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thanks very much. i learn more from you about technology .

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great sir ...
thanks for uploading such video....

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Keep it up

[@aguynamedscott11]

I just need to say that I was watching this channel before they started using click bait. Now I’m watching it despite the click bait. It’s still a very informative channel.

[@snakesjack]

Well explained. Thank you.

[@William_Clinton_Muguai]

ASK/PSJ/FSK=>1 bit at a time.
16-QAM=>4 bits at once(4 times faster)
64-QAM=>6 bits at once(6 times faster)=>Used in 4G.

[@helmutalexanderrubiowilson6835]

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Brilliant, thank you! :)

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Awsome explanation!

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Very interesting, very informative, factual; why the hell are there dislikes for this?🤣

[@AnilKumar-zo2eu]

Thank you sir for your packaged information

[@Baigle1]

standard QAM can be viewed on a 2 dimensional graph. there are modulations that use at least 8192 QAM, and you can add more independent properties to QAM like circular polarization, helix, or spin polarization to make a much denser 3 or 4 dimensional data compression/ modulation wireless link. its just not really done yet, too expensive or not developed effectively enough. its easier for people to move to terahertz waves (IR light up through green light usually) to increase capacity instead of make all available use of the existing spectrum. healthier for us that way anyway.

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fantastic content

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I really like your ICT topics.Can you Explain me How phase Modulation is done .Thank !

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You taught us how QAM works, cool. Routers with QAM feature and 4G :D

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Very good explained

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Never thought you would resort to click bait...it's great vid nevertheless

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Can you do video on milli meter wave communications. And how its related to 5g communication.

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Keep doing this kind of video..

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Awsome explanation 👍

[@tonystark_2017]

please explain about ↘90°phase shifter ↙

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Combining this video with HCV is the best thing to do to learn it in a decent depth.

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Good lesson

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Kindly upload more videos about communication

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Thank you so much!

[@nitin-code-comedy]

The QAM part was tricky but understood

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[@npip99]

0:54 Slight note: that's not really why we use modulation.
While soundwaves, in the KHz, are too slow to transmit with a reasonable antenna, consider that in cases like TV / WiFi the bandwidth would lead to an acceptable frequency in the MHz anyway, so a small antenna would work just fine for those purposes. Yet, we still modulate. So the explanation given only explains radio, not TV or WiFi.
The primary reason we need modulation is because it allows _multiple_ streams of information going over the same medium. Many radio stations, Many TV shows, Many devices connected to the WiFi router, etc, all communicating over the same shared air and of course interfering and mixing with each-other.
The idea of modulation, is that despite every WiFi device + TV show + Radio Station using the same air to transmit their waves, you can still "tune" into a specific frequency by filtering the overall received electromagnetic signal _by_ a sine wave of the actual frequency you're trying to "tune" into.
(Note that, WiFi, in the GHz, can't get through walls or go long-distance easily. So, each WiFi router can use the same frequencies as long as they're in different homes. When multiple WiFi routers share a space, they still ensure a particular frequency isn't being used before trying to use it. Radio waves, over hundreds of miles, act the same if you've ever gone cross-country driving.)

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Better than our bored lecturer 👑✊🏿.

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Great video but i think that i must start again by video 1 :)

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Thanks in advance 🙏

[@IngDzib]

Thank you

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I'm degree of ict thank you alot information 🙏 ☺

[@saskiavanhoutert3190]

Thanks for explanation, yes by 6 Gigahertz it goes faster and QA modulation is better in transfer data.
Kind regards, any reaction ? like a command on this subject !

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Beautiful.

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Nice video

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I will have to watch this again, very interesting but complex.

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That is freakin awesome

[@ideasmaker1093]

Thanks 🌹

[@vishruthmurthy6047]

Can we vary the amplitude such that signals like sound wave emitted from a transmitter speaker travels only upto a certain distance?

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Nice video👍
#eduarena

[@user-ex5yf8mr9l]

Welldone

[@anshuman_eek]

Is there are limit to qam bits packed in a single electromagnetic wave ? Basically what is the highest no. Of G's speed we can *practically* get

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Very nice

[@nurhasan8422]

Thanks

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You came for 1:04

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focus neo.

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need more details on 90 degree signal modulation 😊

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thanks

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epic!

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What book do you recommend for a person that's interested in such things ( as an introduction to telecomunication technology) ?

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Best comment

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Guess u already know it

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[@josejeque9113]

Greetings... Please a video to explain with the functional analog to digital converter.

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Those are big 🎈🎈