Data transmission starts with electromagnetic waves, but how do those waves really make data move? Learn how modulation makes data transmission possible.
Unfortunately this video continues to give the false impression that an electromagnetic wave actually constantly goes up and down, up and down, up and down as it travels forward through space. In actuality, the sine wave shape is just a graphical representation of the intensity of the electric and magnetic fields of the wave as it travels through space.
@@ultrameticulous There is a pretty good video on TH-cam called “What is an electromagnetic wave?” as part of the “Physics Made Easy” series of videos. It doesn’t have anything to say specifically about amplitude or frequency modulation, but it gives a good introduction to how the sine wave shape is used to represent the intensity and direction of the electric and magnetic fields. There are many other videos on this subject of course on TH-cam of varying quality and you can always use one of the search engines as well. Hope this helps.
i don't think so. Sound waves are depicted as 'Sine curves' and 'Transverse' in most books with amplitude showing the intensity of loudness. I don't think that undermines the fact that they are longitudinal and they propagate parallel to their motion as its mostly made clear. The subsequent diagrams after the base understanding is to bring the idea closer to the mind of the learner. Its much easier to visualize frequency and wavelength of any 'wave' using a sine curve representation, otherwise, the video didn't even mention the details you're saying...
@@SttmpJohnson idk why TH-cam didn't display your comment. I had to click your account to see it. I understand the concepts. I was referring to what you said, looking for a true visual depiction versus a graphical representation. I actually stumbled on one shortly after asking you. "How does an antenna work - ict #4"
I didn’t do any research but I always knew it doesn’t make sense for a wave to move up and down.. I really need more info on this, could you please recommend me a video or article to explain what is actually happening??
Still doesn't help understand frequency modulation. How does an FM receiver tune into one frequency at a time, yet the modulation works (and the information exchanged) through the frequency modulating (changing)?
We can only see a very small portion of it, between 700 (“red”) and 400 (“violet”) nanometers and when all are perceived at once we call it “white”. Beyond violet there’s UV, bluetooth/wifi/TV/cellular signals and cosmic radiation, and beyond red there’s IR heat signatures, radar and radio signals. Hearing is how we make sense of vibration waves, and vision is how we make sense of radiation waves.
The voice sounds wrong. Fake or just read weirdly. Some of it was interesting, though. This seems to be aiming to be a very professional video, but I don't think it's very professional that this video has ads before and after. But I acknowledge that I don't know how to turn ads off either.
RF Engineer here. This whole thing is just garbage. If you want to understand how we transmit information by radio waves, please ignore this mess and look elsewhere. If their intent was to create misconceptions, they hit the mark.
TH-cam algorithm is doing its job very well.
Unfortunately this video continues to give the false impression that an electromagnetic wave actually constantly goes up and down, up and down, up and down as it travels forward through space. In actuality, the sine wave shape is just a graphical representation of the intensity of the electric and magnetic fields of the wave as it travels through space.
Good info. Do you have a recommendation for a video which accurately visually depicts the AM/FM electromagnetic field?...waves?
@@ultrameticulous There is a pretty good video on TH-cam called “What is an electromagnetic wave?” as part of the “Physics Made Easy” series of videos. It doesn’t have anything to say specifically about amplitude or frequency modulation, but it gives a good introduction to how the sine wave shape is used to represent the intensity and direction of the electric and magnetic fields. There are many other videos on this subject of course on TH-cam of varying quality and you can always use one of the search engines as well. Hope this helps.
i don't think so. Sound waves are depicted as 'Sine curves' and 'Transverse' in most books with amplitude showing the intensity of loudness. I don't think that undermines the fact that they are longitudinal and they propagate parallel to their motion as its mostly made clear. The subsequent diagrams after the base understanding is to bring the idea closer to the mind of the learner. Its much easier to visualize frequency and wavelength of any 'wave' using a sine curve representation, otherwise, the video didn't even mention the details you're saying...
@@SttmpJohnson idk why TH-cam didn't display your comment. I had to click your account to see it. I understand the concepts. I was referring to what you said, looking for a true visual depiction versus a graphical representation. I actually stumbled on one shortly after asking you. "How does an antenna work - ict #4"
I didn’t do any research but I always knew it doesn’t make sense for a wave to move up and down.. I really need more info on this, could you please recommend me a video or article to explain what is actually happening??
Great video. The bit about phases really cleared up a mental block I had.
Great video on the topic, plus the animations really help visualize these topics
Nice, easily understandable and adding to knowledge without leaving too much out. thank you for the nice video.
among many grungy videos, this one is great...clear...perfect
easy, clear, concrete, just as it must always be. Congratulations
That's a good video; simple and clear! thanks!
Good video, but the music is too loud and distracting.
No it's not
No it's not
@@SubSilenceYeah it is
Just turn the volume down
I wish i could comprehend a little bit what the guy explained.
I was just reading about this but the animations were key to understand it, many thanks
Very well done. Adding this to my video collection for new hams! Thanks.
Damn this was so very well done.
I liked the video before watching. What technology did you use?
awesome video, just what I was searching for!
Wow I'm really impressed with the effort of simplified concept and beautiful animation
Very underrated video. Thank you so much!
This movie made it all clear! Thank you!!
thank you thousand times for this informative video .
Excellent video for HAM Radio Technical License (the 1st license we get)
excellent explanation!!!
“One wave per second” = 1 Hz 😊 0:40
Music is too loud
Please tune to 370 Hz to cancel out the music.
Great video always underrated.
Well explained sir!!
Animations are top notch. However, the narration was off topic and background music was too loud
Great video
What an amazing video, too much information zipped together. Well modulated.
This great video made for some easy learning! I wish this was how science was taught back in school =(
Still doesn't help understand frequency modulation. How does an FM receiver tune into one frequency at a time, yet the modulation works (and the information exchanged) through the frequency modulating (changing)?
We can only see a very small portion of it, between 700 (“red”) and 400 (“violet”) nanometers and when all are perceived at once we call it “white”. Beyond violet there’s UV, bluetooth/wifi/TV/cellular signals and cosmic radiation, and beyond red there’s IR heat signatures, radar and radio signals. Hearing is how we make sense of vibration waves, and vision is how we make sense of radiation waves.
good explanation dude
Just depends what is modulated on to them.
enlightening
I just learned so much👍🏻🇺🇸
I’m pretty sure modern day modems use quadrature amplitude modulation. That’s also what LTE and 5G use.
Gorgeius
best!
As a kid I thought AM and FM were adult media and family media.
I like the part where you talked about electromagnetic waves💀💀
#Analog-modulation … 1:25
Amplitude is measure of intensity.
Annoying meaningsless music
The voice sounds wrong. Fake or just read weirdly.
Some of it was interesting, though.
This seems to be aiming to be a very professional video, but I don't think it's very professional that this video has ads before and after. But I acknowledge that I don't know how to turn ads off either.
🍼👽🍼 👶👏❤
The background "music" is distracting, drawing attention away from what's trying to be conveyed.
RF Engineer here. This whole thing is just garbage. If you want to understand how we transmit information by radio waves, please ignore this mess and look elsewhere.
If their intent was to create misconceptions, they hit the mark.
What would you recommend instead?
Well, is it a wave, up and down or not,.. and if so, how does it start the wave? Thanks.
Bad corporate music.
I wish this is how I was taught in college🥲
Great video
Great video
We're glad to hear it was helpful, Pious! -Scott