Science > Physics > Propogation of radio waves in earth's atmosphere experiment
| Topic: |
Science > Physics |
| User: |
"gamesetmatchjje" |
| Date: |
10 Feb 2005 11:37:07 AM |
| Object: |
Propogation of radio waves in earth's atmosphere experiment |
Hello all,
I am a new user on this forum but it seems like it could be really
helpful. For a college project I have chosen to attempt to create a
scaled experiment that reflects the effect that various degrees of
ionization in the atmosphere has on the refraction of radio waves
back down to the earth. This is an interesting topic to me because I
honestly know very little about this subject. However, at the same
time this is obviously a problem. My question is this: If I were to
create an electrical field and pass radio waves through it to a
reciever on the opposite end, would this have the same effect that
the ionized atmosphere has on radio waves sent from the earth? Also,
I understand that high frequency radio waves often pass straight
through the atmosphere and are refracted only negligibly. Could the
same thing occur in such an experiment? Any ideas, thoughts, or
general information on this would be helpful and greatly appreciated!
Thanks, John
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| User: "Bungle, Mr." |
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| Title: Re: Propogation of radio waves in earth's atmosphere experiment |
10 Feb 2005 12:39:52 PM |
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"gamesetmatchjje" <gamesetmatchjje@aol-dot-com.no-spam.invalid> wrote in
message news:420b9bc3$1_2@127.0.0.1...
Hello all,
I am a new user on this forum but it seems like it could be really
helpful. For a college project I have chosen to attempt to create a
scaled experiment that reflects the effect that various degrees of
ionization in the atmosphere has on the refraction of radio waves
back down to the earth. This is an interesting topic to me because I
honestly know very little about this subject. However, at the same
time this is obviously a problem. My question is this: If I were to
create an electrical field and pass radio waves through it to a
reciever on the opposite end, would this have the same effect that
the ionized atmosphere has on radio waves sent from the earth?
no. One is partially conductive, (mirror effect) the other is not.
Also,
I understand that high frequency radio waves often pass straight
through the atmosphere and are refracted only negligibly.
True.
Could the
same thing occur in such an experiment?
Yes. EZ listen to shortwave radio. GPS goes almost straight through.
Any ideas, thoughts, or
general information on this would be helpful and greatly appreciated!
Thanks, John
checkout newsgroups on ham radio or amateur radio, lots of guys there that
know.
or get a ham radio book this stuff is called "skip"
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| User: "" |
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| Title: Re: Propogation of radio waves in earth's atmosphere experiment |
10 Feb 2005 12:02:10 PM |
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gamesetmatchjje <gamesetmatchjje@aol-dot-com.no-spam.invalid> wrote:
Hello all,
I am a new user on this forum but it seems like it could be really
helpful. For a college project I have chosen to attempt to create a
scaled experiment that reflects the effect that various degrees of
ionization in the atmosphere has on the refraction of radio waves
back down to the earth. This is an interesting topic to me because I
honestly know very little about this subject. However, at the same
time this is obviously a problem. My question is this: If I were to
create an electrical field and pass radio waves through it to a
reciever on the opposite end, would this have the same effect that
the ionized atmosphere has on radio waves sent from the earth? Also,
I understand that high frequency radio waves often pass straight
through the atmosphere and are refracted only negligibly. Could the
same thing occur in such an experiment? Any ideas, thoughts, or
general information on this would be helpful and greatly appreciated!
Thanks, John
An electric field would have no effect.
For more info on propagation:
http://ecjones.org/propag.html
http://www.kn4lf.com/kn4lf8.htm
http://www2.rnw.nl/rnw/en/features/media/links/propagation.html
--
Jim Pennino
Remove -spam-sux to reply.
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| User: "Uncle Al" |
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| Title: Re: Propogation of radio waves in earth's atmosphere experiment |
10 Feb 2005 03:09:56 PM |
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gamesetmatchjje wrote:
Hello all,
I am a new user on this forum but it seems like it could be really
helpful.
I admire your optimism.
For a college project I have chosen to attempt to create a
scaled experiment that reflects the effect that various degrees of
ionization in the atmosphere has on the refraction of radio waves
back down to the earth.
Look up long-range communication bounced off meteoroid ionization
trails. Then there was Project Sanguine in Michigan... and the nearly
megawatt diddle in Alaska that sparked the aurora recently.
This is an interesting topic to me because I
honestly know very little about this subject. However, at the same
time this is obviously a problem. My question is this: If I were to
create an electrical field and pass radio waves through it to a
reciever on the opposite end, would this have the same effect that
the ionized atmosphere has on radio waves sent from the earth?
No, that is not the same as ionization. How big a field, length and
width, were you contemplating given the wavelength of your radio
frequency? How intense a field were you contemplating? What happens
if you blow out neighbors' TVs, radios, computers, and telephones?
You do know that the FCC goes absolutely apeshit even over a little
bared titty, right?
Also,
I understand that high frequency radio waves often pass straight
through the atmosphere and are refracted only negligibly. Could the
same thing occur in such an experiment? Any ideas, thoughts, or
general information on this would be helpful and greatly appreciated!
Thanks, John
Google. Look it up. Then, when you know enough to ask good
questions,
Google Groups. Discuss it in ham radio newsgroups.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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