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Several world gov'ts use long wave radio communication to talk through the earth. The US can send a signal to a submarine on the other side of the world, with long radio waves. I think the longest antanae is about a mile or so long.
I propose that the world builds a gigantic radio array in space
that would be 100 miles long. The radio "message" itself would be short, but would repeat itself so that its wavelength is 100 miles long.
This way, with one array we can search space in a much more effective way. We could also explore super long wave communications. Since Long waves can pass through the earth, who knows what super long waves could pass through.
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Wouldnt they just pass through anything? This would be a bit pointless. |
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They also would have the same velocity as light or any other radio wave, meaning we would still have to wait 8-9 years for a signal to return from alpha centauri. When it comes to space we are, to all intents and purposes, alone. |
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"This way, with one array we can search space in a much more effective way" - for what, exactly? Aliens with very large transistor radios? |
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Building it in space would be a big waste of time too. Dish antennas spread across several continents can already be joined up to create 'virtual antennas' several thousand miles across. The same principle could be used to create big transmitters. |
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//the longest antanae is about a mile or so long// It’s about 125 miles long. |
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//The radio "message" itself would be short// It would be slow, not necessarily short. |
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//but would repeat itself so that its wavelength is 100 miles long// Yer joking, right? |
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As you increase the wavelength you
decrease the scatter of a radio wave. So
an ultra-long wavelength radio might
be good for intergalactic
communication.
(an ULW radio-telescope is mentioned
in a book I half-remember. May have
been Asimov. The
plotline is about a martian settler going
to earth to clone the next generation of
his sterile body. Can't remember the
title, though.) |
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Unfortunately, as the
wavelength increases, so the frequency
decreases, and with it the amount of
information the wave can carry.
I'm guessing that your message will
have to be significantly longer than a
wavelength otherwise, all you are
transmitting is,
"hmmmmmmmmmmmmmmmmm..."
Hardly an exciting message. |
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No, but it is at least the most common thing that lifeforms throughout the universe say to themselves. |
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As this collection of thoughts tend to indicate. |
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The point is that super long radio waves would pass through spacial bodies and systems, thus a good search pattern could be laid out. |
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Test match cricket on 198 (Hz) perhaps? |
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In space, no-one can hear you "Hmmmmmmmmmm" |
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