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- เผยแพร่เมื่อ 27 ก.ค. 2019
- 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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It's not able to learn and understand because it's missing all details
Please translate in hindi
@@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❤️
Professor told us the antenna is L. But you say it's L/2
I am from electronics branch. I share your videos in our group, we got lot of knowledge from you. Thank you and love you from our college.
Please also make videos on Microcontrollers like Arduino, raspberry and etc........
Love you
The best channel for tech-animated videos with a concrete & concise concept. Thanks for giving us such creative contents !!
Obviously, the best video in internet that is explaining the all concepts briefly.
actually I always take very much good knowledge from this channel almost every video, great thanks to you guys.
I'm just get started with the SDR and things around. your resources are really helpful for my research. Anyway I just wanted to thank you and suggest you guys to keep up the great work! Thank you so much once again.
Can you do a video on Fourier series how helpful in communication systems?
No need.. It'd be useless since '3blue1brown' has made a perfect one ;)
Zaki Benbouzid We want it on this chanel...not the one you speak of
Irish Muscle you dare question blue brown?
@@irishmuscle7352 Man this channel is for engineering, 3 blue1brown made perfect videos on Mathematics part, making another would be redundant
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).
Guys I'm learning a lot from your videos. keep it going
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.
The only channel that makes me feel smarter and stupider at the same time
As telecom employee this video helps me a lot to understand the telecom basics
ONE OF THE BEST CHANNEL TO LEARN THE CONCEPTS
appreciating the illustration facilitating the understanding thank you.
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
Very intuitive explaination, Thank you for making these videos, and keep making 🙏🙏👌👌
Thanks for explaining in so much detail ❤️
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Amazing as usual, thanks!
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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 😍
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.)
very very amazing and usefull video thanks to all video Science in this channel
*Merci bien pour ce cours, bien illustré!*
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.
I am learning a lott of your video's keep going on with it, thanks and kind regards.
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.
Modulation techniques with simple examples.. Nice sir
What a beast! SO well explained:)
great sir ...
thanks for uploading such video....
It's great and brief explanation👌
It's so well explained!
Well explained. Thank you.
Brilliant, thank you! :)
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Very very helpful and interesting.
Keep it up
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Awsome explanation!
👍🏻👍🏻👍🏻👍🏻👍🏻, Very good in visual and explanation, Thank you very much
I really like your ICT topics.Can you Explain me How phase Modulation is done .Thank !
Thank you sir for your packaged information
You taught us how QAM works, cool. Routers with QAM feature and 4G :D
Can we vary the amplitude such that signals like sound wave emitted from a transmitter speaker travels only upto a certain distance?
Very good explained
Combining this video with HCV is the best thing to do to learn it in a decent depth.
please explain about ↘90°phase shifter ↙
Very interesting, very informative, factual; why the hell are there dislikes for this?🤣
Can you do video on milli meter wave communications. And how its related to 5g communication.
Awsome explanation 👍
Super amazing video 😊😊👏
Well done bro .
fantastic content
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
Thank you for that great videos
Keep doing this kind of video..
🔥🔥🔥 These fires came while listening 🎧...
Good lesson
What book do you recommend for a person that's interested in such things ( as an introduction to telecomunication technology) ?
Thank you so much!
Awesome video
Which software do you use to make your videos... I also want to learn it for making some educational videos
Thanks you 1000+ time for this information it very help full for me🙏🙏🙏🙏😉😉😄😄😄
Do you have video about scintillation counter ? I need it to make a research
Kindly upload more videos about communication
Good video thanks
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 !
Good information
I will have to watch this again, very interesting but complex.
Never thought you would resort to click bait...it's great vid nevertheless
You are the best thanx
Beautiful.
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Sir, QAM modulator transmitter capable of transmitting PAM signals ?
Thank you
The QAM part was tricky but understood
Thanks in advance 🙏
That is freakin awesome
So nice sir
Thanks 🌹
Are you listening to me Neo or are you looking at the woman in the red dress?
Best comment
Thats the comment i was looking for lol
Guess u already know it
Man took over all the comments
Ohh dude, cmon. 🤣🤣
Good video sir👌👌
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I'm degree of ict thank you alot information 🙏 ☺
Welldone
Great video but i think that i must start again by video 1 :)
Super 👍👍 I satisfied
Very nice
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I can't say anything. Astonishing🥳🥳😍
need more details on 90 degree signal modulation 😊
I subscribed your channel ❤️.
Thanks
thank u sir
Good explaination
Nice video👍
#eduarena
Better than our bored lecturer 👑✊🏿.
Greetings... Please a video to explain with the functional analog to digital converter.
epic!
How is signal added to carrier wave? What exactly occurs in the spot where they are added together? Why does carrier wave change just because because signal is added to it? What device is used to add the carrier wave and the signal wave together? What happens at the other end, how is signal extracted from the composite waves, how is done and by what?
Cool very cool
Nice