How Does Wavelength Affect Data Transmission Capacity?

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Discussion Overview

The discussion revolves around the relationship between wavelength and data transmission capacity, specifically how different wavelengths of electromagnetic radiation affect the amount of information that can be transmitted. Participants explore theoretical aspects of this relationship, considering both electromagnetic radiation and sound waves.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions the type of electromagnetic radiation that can carry more information and seeks to understand the dynamics of this process.
  • Another participant asserts that shorter wavelengths allow for more information to be sent per second, attributing this to high frequency rather than wavelength itself.
  • A subsequent post queries whether gamma radiation transmits more information than radio waves and whether there are other parameters for measuring information capacity.
  • One participant confirms that, per unit time, gamma radiation could theoretically send more information than radio waves, but notes that practical devices cannot operate at the required frequencies.
  • A further elaboration discusses the challenges of sending information using carrier waves, emphasizing the need for distinguishable wave packets and the implications of frequency on the ability to transmit more packets in a given time frame.

Areas of Agreement / Disagreement

Participants generally agree that shorter wavelengths can transmit more information due to higher frequencies, but there is no consensus on the practical implications or limitations of this assertion. The discussion remains unresolved regarding the specific parameters for measuring information capacity.

Contextual Notes

Participants acknowledge theoretical subtleties in the discussion, particularly regarding the nature of wave packets and the practical limitations of current technology in operating at high frequencies.

alvarogz
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What kind of electromagnetic radiation can carry more information?. I mean, what is the relation between shorter or longer wavelength and the information that can go within.

I wonder how the dynamics of this process works, considering that sound waves also can carry information, as well every single radiation that we can analize , but in terms of capacity or type of information... that's my point.
 
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You can send more information per second using shorter wavelengths. But the cause is high frequency, rather than the wavelength itself.
 
So Gamma radiation sends more information than radiowaves? Or there's another kind of paremeter for measuring information?
 
Per unit time, yes, you could send a lot more information in gamma than in radio. Hypothetically speaking, of course. No conceivable device can operate on required frequencies.
 
K^2 said:
You can send more information per second using shorter wavelengths. But the cause is high frequency, rather than the wavelength itself.

That's absolutely correct.

Expanding a bit though - think of sending Morse code (or binary information). You have to distinguish between an 'on' state and an 'off' state of a carrier wave.

Unfortunately, you can't suddenly 'shut off' a wave, it has to be wound down over a number of cycles. Your nice sharp on/off's become smeared out wave 'packets'. (there are lots of theoretical subtleties in that statement - I'm just giving the bare-bones idea).

You can see that each packet needs to be at least a few cycles long to be distinguishable as a packet. A higher carrier frequency allows you to squeeze more packets into a given time.
 

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