Timestamps for the different topics covered in the video: 0:00 Introduction 0:30 Types of Communication: Baseband and Carrier Communication 3:23 Introduction to Double Sideband Suppressed Carrier (DSB-SC) 7:40 Generation of DSB-SC Modulated Signal and Tone Modulation 10:22 Demodulation of DSB-SC

@rosminantia4612

4 жыл бұрын

I\'m not sure but ,if anyone else wants to uncover introduction to electronics try Elumpa Circuits Expert Alchemist (Have a quick look on google cant remember the place now ) ? Ive heard some incredible things about it and my neighbor got great success with it.

this is my whole class in 15 minutes!!

@vshalking6522

Ай бұрын

This is my whole semester

You explain the most difficult topic in easy way and in less time Best teacher on KZread for electronic.

Thank you for the very clear video and illustrations!!

Thank you for the nice and crisp explanation with optimum time utilisation. Your voice and ascent is clear, no need of caption, actually the caption is a disturbance as it masks vital area of the screen and the diagram/ equations behind. Thank you 🙏

very clear video and with good detail!!

Nice explanation, Thank you :)

thank you for this video. this is very helpful

My teacher even dont let us understand in 1 hours which you just do in 15minutes .thanku sir ❣️❣️

@twinklearora7315

3 жыл бұрын

Really that's so true👍🏻

@ravish7010

3 жыл бұрын

Don't compare your teacher to this teacher bro ....

Great Explanation

Excellent refresher. Thanks!!

You are amazing job.. keep it up.. Love from Pakistan

Not sure I will remember all that math, but you certainly made me have a few aha! moments with this. It makes me admire the people that invented this even more.

@jhoanalinares3037

3 жыл бұрын

hey ,if anyone else wants to discover how to make electronic circuits try Bablim Electronics Booster (just google it ) ? Ive heard some awesome things about it and my buddy got excellent results with it.

Hi, kindly thank you very much for your lectures. You were saying there is no discrete component at the centred frequencies (-fo and fo). However, what if we have DC component in our signal that appears at 0 Hz. Then, would not we have a component at centres?

This is my whole 1 lecture (3 hours) in 15 mint😅

Awesome video @:146 you said using modulation the frequency spectra of the BBU signal is shifted to non-overlapping band at the higher frequency is this using FM you mean? or the modulation in general regardless of the type it will do the shifting?

Please make more videos on this playlist

Excellent 👌👍

great sir ji

very understanding

pls make video on other modulations, too.

thanks sir

best video bro👍👍👍👍👍👍👍

Thanks for the great explaination but i have two questions 1- Why we need to multiply the modulated signal with the carrier again at the receiver before the LPF? 2- If the frequency or the phase of the carrier at the receiver is not the same at the transmitter what will happen the the demodulated signal?

Thanks for the great video,sir. But I have a doubt in demodulation where you've used LPF. So, it will allow 1/4(M(f-2f0).but, we dont need that signal right,sir. Are we suppose to use BPF instead of LPF, sir?

@ALLABOUTELECTRONICS

3 жыл бұрын

The LPF will in fact reject 1/4 M (f - 2fo) and will pass only the message signal spectrum. Please check at 12:22. Because after the demodulation, we want to recover the original message signal. I hope, it will clear your doubt.

Distinguishe between DSBSC and SSBSC and give time domain &frequency domain descriptions ? Plz sir can say in this topic

Sir , if am being confused. Please help me. Sir , if in AM only the amplitude of the carrier wave is modulated according to the message signal , then what does the upper and lower side bands represent? Is this means that the frequency of carrier also changes or what?

@ALLABOUTELECTRONICS

2 жыл бұрын

In time domain, yes only amplitude of carrier wave is modulated but the same thing in frequency domain corresponds to two side bands around carrier frequency. (Of course, in DSB-SC, we will not have carrier frequency ). The carrier signal frequency is not changing but the message signal band gets shifted by fc in frequency domain. I hope, it will clear your doubt.

OP Video♥

What will be the value of modulation index for DSBSC??

Nice class😇

Good sir

Which software use for lecture vedio

Good

👍👌👌🏻

I don't understand the forier transform of Cos in Tone Modulation part... how there is term 1/2 ? I saw in books Fourier transform of coswot = F{Coswot} = π[d(w+wo) +d(w-wo)} ? which one is correct?

@ALLABOUTELECTRONICS

3 жыл бұрын

The formula which you have written is in w (angular frequency). If you see the formula of Fourier transform in terms of the angular frequency, then in the frequency shifting property there is 2*pi additional term. Therefore the overall expression will get multiplied with 2*Pi. The expression written in the video is in frequency. e.g (f- fo) Both are correct representations. I hope it will clear your doubt.

@mahendranirgude1267

3 жыл бұрын

Thank u so much sir for a quick response and clearing my doubt....🙂😀

You said at 07:30 : now, one thing if you notice over here, then at every zéro crossings of this message signal, there will be a phase reversal in the modulated signal. And that is wrong and big mistake for ‘phase-reversal’, to occur, both the message and the carrier should have their zero-crossings at the same instant of time. In the event of the zero-crossing of the message not being accompanied by the zero-crossing of the carrier, there is a change in polarity of the modulated waveform without the usual ‘phase-reversal’

Please clarify my doubt. The message signal during transmission is m(t). But in 12.25 you mentioned that the msg signal is 1/2(m(t)).why ? Dividing it by 2, won't it get disturbed ?

@ALLABOUTELECTRONICS

3 жыл бұрын

When the message signal m(t) is divided by 2, only its amplitude will become half. In every other aspect the signal is same. After recovering the message signal, using simple amplifier its amplitude can be doubled or scaled as per the requirement. I hope it will clear your doubt.

@anirudhracs4537

3 жыл бұрын

@@ALLABOUTELECTRONICS but why is the amplitude becoming half ? Also thanku so much for answering :))

@DarkRedZane

3 жыл бұрын

@@anirudhracs4537 It's because of the Fourier transform

How about sir for QAM modulation

What is the plan ? Are you shifting gears towards communications? Any way it's good to know also all about communication 🙂

@alihasan6812

10 ай бұрын

He shifted ?

Sir when are you going to upload Techniques for generation of Modulated signal?? Sir please respond sir!!

@ALLABOUTELECTRONICS

4 жыл бұрын

Very soon.

@sambhavigajula2653

4 жыл бұрын

@@ALLABOUTELECTRONICS Thank you sir 😇 The reason for asking u sir that is you can explain the content very clearly sir!!

@yaswanthkosuru

3 жыл бұрын

Hi hello

what is the meaning of this negative frequency

done

ECE 485 UofA

I wish I didn't have trouble understanding the Indian accent. Thanks a lot for the explanation though.

154

7:31******

1223

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Well but sir very fast is not good we are facing problem

@ALLABOUTELECTRONICS

2 жыл бұрын

You may watch it at 0.75 X speed. It will help you.

Why is it that when I come looking for electronics information, it's almost always by an Indian?? Your English isn't very good Turd? You mean third. Stop pausing in the middle of a sentence. When you do that, it makes the sentence confusing.

@motjones2341

Жыл бұрын

and how is your Indian speaking doing? Come on man, he is doing the best he can, slow to .75 speed is a good solution.

why dont you explain in hindi?....please explain in hindi ...everyone dont understand english so good...please explain in hindi

@muhtalhajd

3 ай бұрын

All books are written in English as far as I know in India not everybody understand Hindi there are Punjabi people also

@likhithgowdahl1174

Ай бұрын

What other language students have to do

@user-xh2kp3of6x

4 күн бұрын

I know I feels different but we need to learn studying in English...all engineering education occurs in english language only