QAM, QPSK Explanation

[@sumittechkgp]

Robert, great contribution to mankind. We will survive as human race because people like you are around.

[@WEBBERSPADE]

Oh stop it, I only did it for fun to see what would happen. not for the 100k+ views!!

[@reemm.hussein1369]

+Robert Webber okay then please keep doing these things for fun your way to explain things are awesome god bless you ^-^

[@FelLoss0]

I agree. Thanks to people like you this society will be better! Thanks for making the complex stuff in a easy thing like this:)

[@SohanRidwan]

world is a better place because there's guys like you !

[@WEBBERSPADE]

return the favour Sohan! I'm sure you can contribute to sharing the knowledge too!!

[@andy23london]

Great! Last time i tried to learn this stuff, it was 3am in a bar in Amsterdam's Red Light District at IBC 2013. Much Easier! :) Great Tutorial thank you!

[@WEBBERSPADE]

HAHAHA! I know the feeling. Mine was more at the MWC in Barcelona.

[@asifharoon6345]

Robert this is ever easiest way to understand constellation diagram at the very basic level,thanks buddy to help me, may God bless you

[@justinng2808]

One of the only videos out there explaining QPSK from scratch. Awesome video for a first attempt!

[@WEBBERSPADE]

Cheers everyone for all the complementary comments that I receive off you. It makes me happy everytime I know I helped you. As I get various questions regarding all different uses of this, would you be interested in if I started a blog so links that are found could be shared? it could build up a vast array of knowledge to help us all out....?

[@danielgurley7377]

yes! great idea!!!!!

[@milo6829]

cheers mate!

[@JoelMurphy77]

Thank you for this video. I recently got hired by a company that produces cable test equipment and this is helping a lot.

[@greentalk3680]

The concept of modulation is finally understood after 5 years of attending university lectures on digital communication...thanks Bob.

[@timothykeltron3447]

Thanks. I just started working in Satellite Communications and was completely clueless to what QAM/QPSK was.... now I have a better understanding. You did a great job

[@psam1304]

Thank you John. This is the best simple explanation of QAM I have ever come across.

[@chezpaiz]

Thanks for taking the time to start at the fundamentals, I think that is the best way to teach and learn.

[@ChristianWilhelmsen]

From Wikipedias PSK article, its stated that "Although the root concepts of QPSK and 4-QAM are different, the resulting modulated radio waves are exactly the same". That is what put me off a bit. Thank you for your quick response and incredibly great videos!

[@patternabstractions]

Fantastic!! Clear and concise. Brilliant. Many thanks.

[@ashoaibus]

i did both bachelor and master in communication engineering, and i haven't met someone who explained QAM the way u did ... Thank u so much

[@99cent266]

Thanks Robert.My lab teacher could not explain me the QPSK graph.And I was really troubled.Thanks again.

[@farhanbadar1716]

What a shot Robert Webber. I have listen many other people but the way you have explained QPSK is just toooooo awesome. It is simply a crystal clear explanation. Hats off !!!!

[@stevphie]

i always hate math and numbers but i love watching people doing it right..great vid bud

[@mdabuzahed637]

I was confused about difference angle and amplitude. After watching your tutorial , i got clear information . now it is transparent to me . Thanks for the tutorial.

[@BenedictBrand]

Great Video Robert, I spent 10 years as a fixed wireless access engineer working up to 256 QAM for PtMP radio systems for Cellular back haul. I always had an understanding of this, but your video has made it much clearer.

[@WEBBERSPADE]

Glad I could help. Shame you didn't find this earlier as I made it around 10 years ago!!

[@BenedictBrand]

@@WEBBERSPADE wow, time flies, I just worked it out, it was 2000 - 2009! I've since got into KVM over IP (its different, but many of the principles are relevant). I'll share this with my team as I've often tried to explain it to them.

[@WEBBERSPADE]

@@BenedictBrand do you have LinkedIn? I just tried to find you but couldn't. You can find me if you want? "Robert John Webber".

[@MortonMoep]

Thanks a lot for the explanation. I have my exam tomorrow and modulations like this will be part of it. Best greetings from germany.

[@annabednarska8272]

Amazing! Your explanations helped me to pass my graduation exam! Thank you! :D

[@darkblood2275]

Wow...Robert. That's super way of explaining. Was dumb about 'QAM'...but no more...Kudos to you.

[@CannabistlanPod]

All my math classes just came together. Awesome explanation man.

[@RishiKumar-nl9es]

Awesome Explanation Robert.... I believe you are the outstanding Professor..Thank a lot and keep posting more video..

[@adityatyagi4009]

Wow, this stuff is easier than I thought. Thanks for the lecture mate!

[@mariasalagean2308]

Great video! After so much time I can finally understand how these things work! Congratulations and keep up the good work!

[@fernandogoliveira]

Nice tutorial. As Amit, I have finally understood how QAM and QPSK modulation mean.

[@calk1calk]

Im 16 and that video finally helped me to completely understand it! Many thanks :)

[@qwertrewq9879878712]

Hi, Just want to thank you! From Montevideo,Uruguay. The first time I rurally understood qam ,I hope this help me to succeed on my next Modulation course exam.actually studying electrical engineering.

[@MrRajanikanthachar]

Thank you very much. Your way of explanation is very good. Please keep posting such videos more and more.

[@ageualves794]

Despite your self declared youth, remarkable explanation.Thanks.

[@z3082026]

thank you RObert. It's really helpful.

[@TheTrini1980]

The best explanation of QAM I've ever seen!

[@darthvivek7228]

Great video Robert. Very simple. Thanks

[@vincat84]

You are the best Robert Webber!! great explanation! Now I will watch part 2 =P ....thanks a lot

[@michaelmcgovern8447]

This is an excellent explanation of QAM for students. Really well explained

[@wallymoore7224]

Very informative and well presented. Thanks!

[@gudaendla]

Rob, Excellent Video & excellent teaching skills. You may not see yourself good video maker but the way you taught the topic, it was excellent. Thanks for the video.

[@hammetmetallica9649]

I got the clear picture now and better understanding on it...thanks a lot bro

[@HeikoRehm]

Great!! Finally I understood QAM/QPSK Modulation. Thanks!

[@THEBIGSAM444]

Hey Robert Thanks for the video , It made it easy for me to Understand the the modulation methods ...You are the Best

[@Yusifinify]

Mr. Webber I appreciate the response. The QAM topic was actually postponed because the instructor wanted to cover FM/PM first. I can think of two points of feedback that may improve the videos. First would be including a problem and solution to show how the relevant mathematical principals are applied. The second would be using one of those electric pens so the whole thing can play out on a computer screen. It would make viewing easier in terms of glare and having your arm in the way. Thanks!

[@Corporate_Adda]

hey nice explanation i loved ur that little board its really aowsome

[@joshuageorge7246]

Such a great video! I learnt a lot of new things here! Thank you so much for sharing your knowledge!

[@cipmars]

Thank you for explaining, this here is the base of WIFI and satellite TV, to put it simply. NOW I can understand it!

[@arnaldbothalage6767]

Woooow nice tutorial.I thought that i can't undestand the theory of drawing constelation diagram in my life time.via this tutorial i understood everything about how to draw a constelation diagram...tnx a lot..

[@edagottisudarsan8674]

Robert, clear explanation. Thanks a lot

[@jaehoonshim5932]

Great Job! I hope you do more of these stuff.

[@kaicamp9101]

That was awesome, beautiful breakdown of how to show qam

[@usandhu]

Wow....amazing tutorial! I've gone through so many websites, documents , books in past few days to properly understand QAM but without any luck. After going through your video I feel much better. You're an amazing teacher. Looking forward to check your all others videos too. Thanks.

[@rockthisboyee]

Awesome video, thank you for taking the time to explain.

[@younesshaimi1450]

Thank you Robert, that was very helpful

[@BogdanMerza]

Great job & straightforward !!!

[@dseemiller]

Good Video. It's been very helpful for the 17 year old son.

[@Ruben-tm3fg]

Thanks alot for the very simply and easy to understand explanation, I'm new in all this telecommunication stuff. Hope you do more videos

[@w410921]

Thanks Robert, I have managed to work it out myself, these are the points on the axis i.e the phase

[@mahmudurrahman6809]

You are awesome Robert! Thanks man!

[@KOmban99]

i understand the basics now....thank you!!!!!

[@EEVOL]

Mr. Webber, great explanation! I'm an electrical engineer and was looking for a video to explain in simpler terms (i.e. to non-engineers). Your video was quite informative and was exactly what I was looking for, thank you.

[@getmani25091980]

Excellent Information shared. Thanks you very much..!!

[@pawan2415]

This is a good video to understand QAM thanks robert.

[@rober7407]

Thank a lot for your explanation...very clear!!

[@ottriebe]

Very good video, easy to understand. Compliments

[@AnumitKaur0211]

Thanks a lot for such a great video. Just one little thing: in 16 QAM it should go from 0 to 15 and not 16. Thanks again for the helpful video. :)

[@WEBBERSPADE]

I am very proud that I can influence you so positively!

[@dimassetiadi9542]

WTF know i know the detail about 'polar graph' or constellation diagram. THANKYOU SO MUCH Robert Webber !!!

[@vlbvinoth]

ROBERT IT'S VERY INFORMATIVE ....U R SUCH A GREAT GENIUS....THANKS A LOT......I REALLY ENJOYED.......

[@rayhzaamatistagutierrez6894]

men your arm scared me a few seconds XD but dammit, from a student of telecom engineering i must say THANKS MEN, i'm in my last step and your video clear me a lot of things, really thank you

[@MrPuneeshKhanna]

Superb explanation, I have been trying to understand these concepts for quite a bit and this is the best way I have come across and finally got to understand very clearly after watching this lecture

[@alterechox]

Awesome explanation! Thanks for the video.

[@drathinavel]

Really good explanation... Thanks a lot Robert...

[@ananinamigariyaw2]

Thank you so much for addin this video tutorials onto youtube Robert! I really learned and enjoyed there. Take care!

[@MrBitviper]

awesome video thanks for taking the time to make this

[@surajjeoor9147]

this is best tut i ever got! good and pretty helpful !!

[@mariyathasgeethanraj9414]

good presentation sir. its very usefull for my final project presentation....finally wonderfull sir.

[@kanepy]

Great explanation and a very well done video!

[@stevenwinsir6229]

excellent. very good explanation and very easy to understand.

[@vinaygurusimha]

I just saw this video.. as some of my friends wanted to know about QAM,QPSK. Have to say amazing effort.. and very good explanation... Sorry to be reviewing this critically.. but at one point you say 0 to 16 for 16 QAM ( its 0 to 15) ... just a very minor error .. but you can probly add as a note or so (it is around 24:11) Finally .. thanks from all of us.. great !

[@suboo8491]

Great tutorial Robert!

[@paulcook4807]

This is such a good lecture I think it is worthy of re-doing with better lighting & sound

[@ahmedobsiyye4149]

Great tutor,you really helped me. Thanks a lot

[@venkatanagendrakishorekuma4469]

Great Vedio. Robert. Thanks you.

[@kubislavcze]

Very good tutorial, good explanation.

[@anithatg1]

Hello Rob, Thank you for uploading such a simple to follow video on QAM. Helped me lot in refreshing my basics.

[@anyu686]

Excellent I am major in telecommunication and my final year project is about Qam . Helpful for me thank u . Hope more video

[@saeedabbas9217]

Very nice tutorial. My concepts have now been cleared.

[@rksingh8518]

Robert this is excellent explanation.

[@WEBBERSPADE]

Thanks. It's a real pleasure to have helped you

[@sshetty2k]

thanks Robert for the information . Its very informative

[@juankrubio]

Thanks Robert, I was having a really hard time understanding QPSK. This helped a lot!

[@rishonka]

Very helpful Video! Thank you very much

[@swethajan]

Awesome Video Rob!! You made it easy and simple! :).. Thanks!

[@sunnyboy866]

A very nice and easily understandable explanation

[@TheDreams0000]

wonderfully explained:)helped e in my thesis a lot

[@jeffreyleong7676]

thanks for the explanation! great video! thanks

[@educationplatform6250]

simple... clear....very helpful...many th. 4 u.

[@arunimachakraborty6423]

Very well explained. Thank you so much. :)

[@mr.rachetphilanthrophist601]

yes babe

[@developingdaddy]

Really great video, I have a much better conceptual understanding now. Thank you!

[@frederickmloka5454]

Robert thank you it was very helpful

[@HassytheWitcher]

simple and clear..Good job sir..

[@shannonl2443]

Thank you for this video, very well explained.