Understanding Amplitude Modulation

This video explains the fundamental concepts behind amplitude modulation (AM), common applications of AM signals, and how AM signals are measured.

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[zprogress]

I wish these videos (+FM) could be out 1 year ago... so good

[BohrKid]

Wow, this video helped me understand my AM modulation lab so much. Thank you 🙏

[Daluk]

Thanks for creating this video series.

But at timestamp 4:40, you need NdB as the input to the formula.
So as m = 2 * 10^( NdB / 20 )

[poorman-trending]

I’m struggling understanding where the side bands come from. If you are modulating the carrier, and the only thing changing is the amplitude, why would there be other frequencies involved?

[suchirasenevitathne]

This is very helpful to understand the basics of AM. Thanks.

[ego-qxwv]

Hello, just to point out that the amplitude of each sideband is half of the amplitude of the sinusoid:
F{ Am*cos(ŋ*t) } = Am/2 [ @(f+ŋ) + @(f-ŋ) ]
with @ as the dirac delta dist.

Great Video

[sofianebenhamza]

Thanks for your presentation, it's very rich and simple to understand

[frawding]

Thanks for this. Really helped with my signals coursework

[tedwang]

why you draw the rf signal in sine wave, I mean the most common case, it is not sin/cosine?

[ESEben]

very good man! I would like just o ask something: I don't know if it is a misunderstanding mine or some mistake on the presentation, but I saw a contradition between the 3:30 and 4:56. On 3:30 we have a low signal changing for m=0.1 but on 4:56 a highly changing amplitude of spectrum for the same value of m. How to understand this?

[md.sazzadhossain]

sir, will u explain me the sidebands please? i've many doubts about sidebands.

[stormbytes]

Consider adding Greek 101 as a prerequisite.

[nohrtillman]

Does not compute.

At 2:42 in the time domain, the blue line (carrier) amplitude increases and decreases with time. Amplitude of the carrier frequency is clearly changing/modulating.

At 4:22 in the frequency domain, the blue line representing the carrier at that frequency is suddenly now a fixed value. Further on at 5:16, the carrier amplitude is described as constant.

Both cannot be true. Many people struggle with this. Just saying.

[marcusanderson]

When did you get Brent Spiner to voiceover this? lol

[remnantministries]

This explanation of AM makes too many assumptions to be useful, not to mention it moves too fast.

[alimuqaibel]

You might find this video relevant: Amplitude Modulation the Big Picture

[zainabalbakaa]

You have helped me more than you can imagine🥹🥹🥹