FREQUENCY MODULATION - PART I - BASIC PRINCIPLES

[@antonionunez4693]

I have been taking an electronics communications class and i am quite surprised at how quick and easy this video describes material that my book and professor took weeks to convey. Pure awesomeness!

[@markhillebrandt9732]

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[@keylanoslokj1806]

Are walkie talkies in the FM range?

[@antonionunez4693]

​@@keylanoslokj1806it depends, but most use FM on VHF and UHF for FRS and GMRS.

[@larryhull2752]

⁠@@keylanoslokj1806yes. Radio 85-105. Hand held radio 120-160 as far as I have heard on air.

[@mohdbilal4182]

Absolutely beautiful. Even in 2022 many people cannot use Microsoft PowerPoint to illustrate things with this clarity that this video shows.

[@mandarbamane4268]

I don't think PowerPoint is made for moving mathematical curves. That's just good for business/finance/etc. presentation.

[@rhinoskin7550]

Well, in 2022, there is incentive to monetize and keep peoples attention making actual information is increasingly more difficult to find.. The whole population wants to monetize a YT channel. How are channels profitable..?

[@simonetruglia]

This is the most beautiful explanation that I ever saw Thanks a lot for sharing

[@johnlagreca6288]

Good stuff. Amazing graphical presentation for 1964. I can't begin to imagine the amount of time spent on producing this for it's time period.

[@mr.l0st109]

This is hands down the best explanation for this topic

[@HafsaBatool-mc1de]

Mahesh you have literally spoiled visual and conceptual learners like myself with such a high quality content of yours.❤

[@EugeneSorokacorp]

Excellent!!! Not a single equation used. This is a great intro before diving into the horrible unpleasant math of it all.

[@ryandavis7192]

Lmao

[@ngovankhoi]

Wonderful! Since 1964, they had so good training way!

[@richisnang]

Big up FM!! 50 years worth of technological advancements and you're still about! A bit of noise on the radio signal is better than no signal (DAB)!

[@ahmetkipkip]

Oh after 55 years, that video explained me am fm modulation very well. That's the success.

[@minionman6177]

12:40 best depiction of FM that I've ever seen.

[@vishalsathiaseelan679]

This is absolute gold. thank you so much for uploading this video. Such great animations & clear concepts explained in simple english.

[@DetroitDoc]

I've understood AM radio for 20 years and have never been able to get a handle on FM regardless of how much I read about it. It's crazy such an old film would make it so simple and so clear. Sadly it makes me wonder why America has lost it's place as a technical leader. In the '40s we were so far more advanced than 99% of the other countries. Today I'm guessing we are in the 50th percentile.

[@superjanso]

The best description, understood perfectly

[@pauleitel5048]

Wow very good video. I've learned all of this stuff from books and classes but this is far better.

[@MatthewHolevinski]

Ya I have to admit there are auditory learners, visual learners, and mechanical learners. When information is presented to me in cheesy silly animated diagrams and the like almost exactly in this video's format, my brain just gobbles it up like a steel trap.

[@MexterO123]

+Matthew Holevinski Cheesier the better in science!!

[@michaelfranciotti3900]

Everybody likes cheese

[@Rumpatum]

I am an operations manager at a Christian radio station and these things had always been so confusing, even after watching so many vidoes. This is so helpful in clarifying every one of my questions! I'm going to watch it through a few more times to really sink it home. Thank you for posting this as it will literally change my life and will change my coworkers as well who interact with these principles! Thank you Thank you Thank you!

[@wouternet94]

Great study material, thank you for uploading. This helped me with studying for my amateur radio license

[@christophermalau5299]

Very good explanation, old films are the best.

[@elionaidgranados1005]

2023 and learning from a blk n white film🎉🎉🎉❤

[@storaman12]

The best description I have ever seen.

[@chaoswires2734]

That voice and quotes are good for use in modern EDM music. Educational dance music ftw

[@theswagger123456]

This is really good. Thanks for uploading this video.

[@justmenate]

This is an awesome video! Thanks for uploading this!

[@abuhanif3991]

This is very helpfull video

[@sudhansumtripathy]

Please upload the frquency modulation part 2 . These are very intresting lecturers

[@alimukhtar4759]

Great explanation

[@sudhansumtripathy]

old is gold , a beautiful way to understand things, if you have all the electrical videos please upload it.

[@FWDSlip]

KZbin University!

[@floatershaw]

Omg i have been sent back in time,, i was sent here by a modular synth ,,,,,,,,,,

[@EdEditz]

Modular synths are awesome :)

[@bogartscience]

The bomb. Very good description.

[@gilbertroy9784]

Cool way to learn...

[@prashantnagre2798]

this changed my perspective .....

[@ABHIJIT193]

Good illustration ... thanks

[@chris_sndw]

Great video and cycles is a much better name than Hertz.

[@simplelife1021]

@jfdonnald If you're talking about the part where the audio wave is rotated vertically, it's just showing the direct effect of changes in amplitude in the input audio wave to changes in frequency in the carrier wave. Remember, the carrier's frequency is represented by the black horizontal line, and movement along that line only changes the frequency.

[@TheKrazykool809]

@msingletary1984 something called a piezoelectric material is used. this creates electricity when it is compressed or released. when hooked up to a microphone so that sound is turned into mechanical movement these properties can be used to make an electrical signal. no electricity source is needed, however a source is need to power the occilator as you have probably noticed that it has no actual input.

[@joemills4603]

This is brilliant.

[@jcv71]

I wonder what of animation device did they use back then. They look very well done as if done in After Effects.

[@winpad100]

well explain and easy to undestand :D

[@invitacionesdigitales1574]

this is so magnificent.

[@TEMK420]

very very helpful !!

[@Braydan789]

I see people talking about how this video and those like it clear up detail and information about these topics better than their teachers. I don’t see it at all, these videos miss details that are impossible to infer. Like from this one video alone, try and build an fm transmitter and receiver, you couldn’t do it because they don’t show actual circuits with valued components, it’s all just building blocks. How exactly do you make an oscillator that you feed an audio signal into for it to change its resonant frequency, it’s just not there.

[@qingboshang]

That is not one video can do, maybe a series of videos can

[@Braydan789]

⁠@@qingboshangone 30 minute video could easily explain all fundamental principles with detailed circuit diagrams and practical functionality. It would take more videos to go into the maths but that’s clearly not the point because this video is for technicians not engineers.

[@elclyde06]

This really help for my report. :)

[@SurajGrewal]

I wonder what things we'll get to learn when modern Air Force data gets declassified.

[@jfdonnald]

@rafafull You are correct. The example showed amplitude changes in the carrier - or either both of us are misinterpreting the video.

[@sonai4u]

great video...thanks a lot!!!!

[@iLikeTheUDK]

Gootra love the Loony Tunes style intro.

[@TheRealPhoneCall]

NEED: Part 2!!!! :)

[@Devloper56]

great !!!!!

[@felixdiaz4438]

👌

[@JohnPaulBuce]

cool

[@msingletary1984]

I could be wrong but I would say that the microphone doesn't create the electrical signal. Power must be sent to the microphone for the microphone to create distrubances in (this is the signal).

[@newtonlkh]

On FM synth the modulating frequency follows the oscillator Your LFO have to follow keytrack 1:1 in order to do that

[@m7md0zeid]

khargak ya ayyoubi :P

[@K0BRAKID]

haha this is so old that they are calling hertz cycles XD. Anyways, very helpful for an RF newbie :D

[@jakepalmiero4293]

I know I’m late but Hz is one CYCLE per second so I mean tomato tomada.

[@K0BRAKID]

@@jakepalmiero4293 1Hz = 1cycle/s, that is true.. but it's funny to me how probably back then Hz wasn't a very established standard, so they would just invert it and talk in cycles. Nobody talks in cycles anymore hehe

[@algorithmtrader]

deleted scenes from fallout 4

[@Ilovegojo111]

George Rivas lol

[@firstaidkisss]

Doppler effect applies, but it is negligible because EM is going at the speed of light. See Blue shift, Red Shift

[@msingletary1984]

@TheKrazykool809 I knew about them but I hadn't even considered it. Thank you!

[@ksantander]

Can you replicate fm synthesis by simply using an lfo to modulate pitch?

[@CoolDudeClem]

How far we have come, now this can be done on a single chip!

[@jasonjones2064]

I'm pretty sure the frequency of the music at the beginning of this clip just destroyed all of my speakers

[@sudarshanandpappaai]

Baap video

[@edwardpryce217]

very good video, can i have the AM video to this?

[@mankee2211]

is mega cycle the non-iso / american way to say Hertz?

[@tushar699]

Thanks a lot.

[@grzesiek1x]

so for example 40 MC is the same as 40 MHz right?

[@katol_enjoyer]

is there a part 2? can someone help me find it. big thanks!

[@kavoos1000]

Wow

[@sudarshanandpappaai]

Thankss re bhava

[@smartfoxer]

أعجبني

[@TheSuperMrG13]

at 8:14 what unit does the y axis of the audio signal represent, volume?

[@jvt3272]

Alex Gamota yep!

[@sureshreddy0001]

old is gold

[@Lordy-Lord]

Little did people know that FM synthesis would become a thing and would be responsible for the Yamaha DX7 and the Yamaha 2612 soundchip in the Sega Genesis.

[@ivanv754]

They didn't call frequency units Hertz, because Hertz was a German physicists. :P Instead they called them cycles. This was recorded in 1964 and SI was established in 1960.

[@mankee2211]

Thank you, but I guess you're a bit wrong also. Hertz is actually cycles per seconds, so my first question is somehow stupid. And Hertz was SI standart from 1960 - 4 years before this was publicated.

[@waswestkan]

The film is old created before cycle was renamed Hertz to honor the man, when all the world used the term cycle in this context

[@hueance]

in an FM signal you have a limiter to limit the amplitude so how does the demodulator work once the limiter limits the signal to certain amplitude???? why cant all those tutorials be explained like this i wonder

[@ProfeARios]

where is Part 2?

[@timdeignan900]

The doppler effect applies only to sound waves - not EM

[@jvt3272]

Tim Deignan not actually true. Galaxies that are moving towards ours are said to be “blue shifted” and galaxies moving away are “red shifted”. It is negligible for these purposes, but to say it only applies to sound is actually incorrect.

[@sonofhextall]

14:35 he mixes up frequency whit amplitude.the frequency deviation is at 100% at its maximum,not the amplitude.this is frequecy modulation after all.unless im missing something.

[@vishnum8437]

I know that am commenting to an old comment. Initially I also had the same point as yours, but later understood the point he makes in the video is correct. Amplitude variations manifests as change in frequency therefore high +ve amplitude results in high frequency and -ve amplitude results in low frequency, this can be understood at 07:40.

[@aristoi]

What? no 1080p?

[@jollyjoshhalo]

Was this recorded with a toaster?

[@salmanghaith]

frequency modulation - part 2 - basic principles /watch?v=hoDkblpA4G0

[@NettyMusicOfficial]

I came here because I want to learn FM8 ...

[@ratlinggull2223]

The secret Sytrus manual 🤔

[@JeydetaJosen]

and now we do with FM the WUBWUB and DUBDUB and WEEEAAAU SCREEEEEEECH. D-D-Drop the Base!

[@mouhammadayoubi543]

hhhhh an error occured !! Study well you are going to explain for me :D

[@hydewhyte4364]

That a film on FM is barely audible because of the static is highly ironic.

[@fsphil]

Not true. The Doppler effect also occurs with radio. The effect is less but still very real, and can be a problem for satellites which orbit very quickly.

[@Jim-mn7yq]

Nice point. The doppler effect can be heard even in sound waves. Listen to a car approach you vs receding from you and note the shift in frequency.

[@fadecomic]

"Hertz" is the American way to say Hertz.

[@malebitsatimbuktu3352]

"FM radio is not a miracle." Well, for me it still comes a some kind of witchcraft.

[@davidtrujillo3025]

Electronics, semiconductor physics, its all in the transistors, that's where the magic is stored..

[@kevinpcook]

T2B05 @ 12:24

[@raunaquehasan1315]

like

[@rafafull]

its a good movie, but i dissagre when he talks about the rest frequency and the deviation in FM. The deviation is not about the amplitude of the signal, but the frequency

[@jvt3272]

Rafael Sartori I know your comment is old, but this video has fascinated me and I’d like to attempt to explain my perspective for anyone else stumbling upon this. The deviation is about both amplitude AND frequency. Remember, one cycle (or Hertz) will cause the frequency to go both above and below the rest frequency. How far it goes above and below rest frequency (modulation) is what affects the amplitude of the sound wave. The illustrations towards the end of the video are confusing because they are showing the amplitude of the wave changing with respect to the rest frequency, even though we can not. visualize the frequency of the input wave (RF) changing.

[@vishnum8437]

I know that am commenting to an old comment. Initially I also had the same point as yours, but later understood the point he makes in the video is correct. Amplitude variations manifests as change in frequency therefore high +ve amplitude results in high frequency and -ve amplitude results in low frequency, this can be understood at 07:40

[@jelaienfinue]

An entire month of college in half an hour.

[@rascommentsupprimer9120]

Oups

[@electricity2703]

Can someone add English subtitle for non-native english speakers?

[@christostsatsaris8185]

Im no native too but dont need subtitles

[@quadroninja2708]

​​@@christostsatsaris8185yeah well there may be two people, one's level of English is B1 (Intermediate) and the other's - C1 (Advanced). They both are not natives but the second still knows it better and can understand more by hearing. So yeah, subtitles would benefit all non-natives

[@jonathanriley6442]

RIP the eardrums of headphone users

[@m7md0zeid]

it's the same video bro!!