• #1
Charles_The_Erlich
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Is there a machine that can emit multiple radio waves simultaneously? I am trying to create a demonstration, but it requires multiple radio waves at once and cannot find any machines that can do so.
 

Answers and Replies

  • #2
anorlunda
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:welcome:

Do you mean a wide frequency spectrum? White noise in the RF range satisfies that.

I think we need to hear more about your definition of multiple radio waves?
 
  • #3
berkeman
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Is there a machine that can emit multiple radio waves simultaneously? I am trying to create a demonstration, but it requires multiple radio waves at once and cannot find any machines that can do so.
Welcome to the PF.

You can just use a Diplexer or Triplexer to combine multiple RF sources into one coax output. Can you say more about your application? What frequency ranges? Do the combined waveforms feed a Spectrum Analyzer or an antenna?

EDIT -- Beaten out by the guy with the mustache again! :smile:
 
  • #4
Charles_The_Erlich
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:welcome:

Do you mean a wide frequency spectrum? White noise in the RF range satisfies that.

I think we need to hear more about your definition of multiple radio waves?

I need to output the, preferably same, frequency multiple times from the same source to multiple things at the same time.
I essentially need 1 device to send out multiple signals that can be recognized by multiple receivers, one receiver for each signal.
 
  • #5
berkeman
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Oh, then just use the Triplexer in reverse! :smile:
 
  • #6
Charles_The_Erlich
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Welcome to the PF.

You can just use a Diplexer or Triplexer to combine multiple RF sources into one coax output. Can you say more about your application? What frequency ranges? Do the combined waveforms feed a Spectrum Analyzer or an antenna?

EDIT -- Beaten out by the guy with the mustache again! :smile:

I would like something like a Triplexer, but can operate with multiple of the same frequencies or very close.
 
  • #7
Charles_The_Erlich
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:welcome:

Do you mean a wide frequency spectrum? White noise in the RF range satisfies that.

I think we need to hear more about your definition of multiple radio waves?

I plan on having insulators of sort so that the signals do not interfere with each other. The problem is that i need 1 source to output the same or very similar wavelengths because the low frequency waves are easier to insulate against. The wave outputs need to be just strong enough so that a small receiver can pick up the signal it is designated to recognize. Think about binary that commands computers as to what to do. I wish to have the waves show that a signal is present or not resulting in a 1 or a 0. I need 1 output device that outputs the same or similar waves simultaneously to different areas.
 
  • #8
berkeman
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Can you say more about your application? I get the feeling that there is an easier way to accomplish what you want to do.
 
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  • #9
Charles_The_Erlich
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Can you say more about your application? I get the feeling that there is an easier way to accomplish what you want to do.

I want to simulate the what electrons do in computers with binary with radio waves instead. Binary just shows that the circuit is complete and is read by computers to perform actions. I want to create a large scale version of this with radio waves taking the place of the electrons.
 
  • #10
berkeman
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Ah, thanks. How familiar are you with basic computer architecture and circuits? Are you familiar with the concept of Memory in computers? Do you have a proposal for how to simulate Memory functions (registers, etc.) with this radio wave demo?
 
  • #11
Charles_The_Erlich
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Ah, thanks. How familiar are you with basic computer architecture and circuits? Are you familiar with the concept of Memory in computers? Do you have a proposal for how to simulate Memory functions (registers, etc.) with this radio wave demo?

I am semi-familiar with such components. I know how to program and know some stuff about how the computer physically works. I do not have a clear idea as to how everything works together, but my intention is to essentially create a large-scale example that registers the signals, instead of a creating a small-scale, more functional version of it. I have only started working upon this as of yesterday, so i do not have everything worked out yet.
 
  • #12
berkeman
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I want to simulate the what electrons do in computers with binary with radio waves instead. Binary just shows that the circuit is complete and is read by computers to perform actions. I want to create a large scale version of this with radio waves taking the place of the electrons.
Radio waves are already used in all computers to manage electron movements. The high-frequency circuits use (confined) RF waveforms for the clocking and control signals that dictate the behavior of the electrons in gates, registers, and other computer structures. High-frequency clock lines on ICs can be thought of as confining the RF waveforms to transmission lines, much like coax cable does this on a macro scale.
I am semi-familiar with such components.
Then you are probably familiar with the concept of "clock trees" for distributing the system clock RF waveforms throughout a computer. That sounds a lot like what you are asking about, but you are still missing the registers at the end of the clock trees for managing the actual data, IMO.
 
  • #13
davenn
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I need to output the, preferably same, frequency multiple times from the same source to multiple things at the same time.
I essentially need 1 device to send out multiple signals that can be recognized by multiple receivers, one receiver for each signal.

something in there doesn't make sense

you said ... I need to output the, preferably same, frequency multiple times from the same source

you only need ONE source for multiple receivers

Again as Berkeman and others said

What EXACTLY are you trying to ackieve
 
  • #14
sophiecentaur
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I plan on having insulators of sort so that the signals do not interfere with each other. The problem is that i need 1 source to output the same or very similar wavelengths because the low frequency waves are easier to insulate against. The wave outputs need to be just strong enough so that a small receiver can pick up the signal it is designated to recognize. Think about binary that commands computers as to what to do. I wish to have the waves show that a signal is present or not resulting in a 1 or a 0. I need 1 output device that outputs the same or similar waves simultaneously to different areas.
I think you need to specify more exactly what you actually want to achieve here. What actual RF frequencies did you want? Are you planning to monitor the resulting signals from a distance?
I want to simulate the what electrons do in computers with binary with radio waves instead. Binary just shows that the circuit is complete and is read by computers to perform actions. I want to create a large scale version of this with radio waves taking the place of the electrons.
This sounds a bit like a local area network (WiFi, perhaps) where the outputs from a number of computers are monitored by another computer overt s Radio Frequency Link. This is already done by a server which can supply many computers with information (files / images etc) according to the signals it receives from them. This is very complicated but familiar technology.
Perhaps you could draw a diagram of what you had in mind and what you actually want to achieve? Just connecting things up at random has a habit of giving disappointing results so some serious planning is needed.
 

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