Cavity Resonator

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Willy
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Cavity Resonator

Post by Willy »

Hi my first time here,
I'm looking for some one that can build a cavity resonator which operates at 1420mhz.

Cheers
Wayne
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Post by VK6ZMS »

yeah no worries I will use a baked bean can :lol:

seriously
Can I ask what you are trying to do?
Willy
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Post by Willy »

I have been into alternative energy for quite a number of years, from hydrogen, solar and over unity motion and have spent lots of money on different designs. Where as my hydrogen machine is not very efficient due to my lack of knowledge. Anyway in 2005 when I was travelling around Australia, we visited Parkes in NSW. On the observatory wall there was a piece of paper that said ‘Hydrogen emits a radio wave of 1420mhz’ this got me thinking. If you were too emit a concentrated sound wave of 1420mhz into water, what would happen? (I don’t know). So this is what I propose to do, I would like to be able to have two resonator chambers, one set at 1420mhz (hydrogen) and the other at 1640mhz (oxygen), on top of each other with a pipe running through the centre of both of these. Inside the pipe I would like positive and negative charge electrolysis. Hopefully using all three of these things at very low currents will excite the water (H2O) into separating the molecules.

Cheers
Wayne
WPXZBP

Post by WPXZBP »

Willy wrote:If you were too emit a concentrated sound wave of 1420mhz into water, what would happen?
Sound doesn't occur at those frequencies. They are the realm of radio waves. Sound typically ranges around 20Hz - 20 000 Hz (or 20kHz) for most humans.

The 1420MHz referred to is simply ONE of the many frequencies emitted by an electron as it drops back from one level of energy to a lower level of energy. It is one of a series of transitions referred to as the Balmer series. There are others such as the Lyman, Paschen, Brackett and Pfund series. Check out http://en.wikipedia.org/wiki/Hydrogen_alpha for more info.

To give you some idea of where it is in the scheme of things microwave ovens are at around 2.45GHz. They just heat water up by causing the molecules and their bonds to vibrate. To break water into hydrogen and oxygen requires electrical energy. Radio waves cannot break water up that way as they don't have the energy to break the covalent bonds between the oxygen and hydrogen atoms. We know this as the Earth receives massive doses of energy from the Sun (including 1420MHz) every day and have so for billions of years.

I'd suggest you do a bit of research before diving into something that could cost you potentially many dollars and disappointment.
Willy
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Joined: Sun May 18, 2008 10:57 pm

Post by Willy »

Hi WPXZBP thanks for that you must excuse my ignorance as I know nothing about radio waves.That wikipedia page was very interesting but I didn't under stand very much of it. could you tell me what mhz a good transmitter go up to
Cheers
Wayne
WPXZBP

Post by WPXZBP »

Willy wrote:could you tell me what mhz a good transmitter go up to
I'm not sure what you mean. I'm guessing the most common radio transcievers used in Oz would be UHF CBs (~470MHz).
Willy
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Post by Willy »

Sorry I meant Hf
WPXZBP

Post by WPXZBP »

HF covers 3 MHz to 30 MHz.
Willy
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Post by Willy »

Thanks for that

Wayne
Willy
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Post by Willy »

Can some one tell me the exact length of 1420 MHz and 1640 MHz in millimetres.
Cheers
Wayne
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Post by Bonez »

Willy wrote:Can some one tell me the exact length of 1420 MHz and 1640 MHz in millimetres.
Cheers
Wayne
1.420GHz wavelength is 211.26760563380282 millimeters
1.640GHz wavelength is 182.9268292682927 millimeters
Willy
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Post by Willy »

Thanks Bonez, That's what I got to,I was hoping I was wrong.
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Post by spartacus »

Bonez wrote:
Willy wrote:Can some one tell me the exact length of 1420 MHz and 1640 MHz in millimetres.
Cheers
Wayne
1.420GHz wavelength is 211.26760563380282 millimeters
1.640GHz wavelength is 182.9268292682927 millimeters
is there a formula which you can post?
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WPXZBP

Post by WPXZBP »

v = f λ

ie 300 000 000 = frequency (in Hz) multiplied by the wavelength (in metres)

or 300 = frequency (in MHz) multiplied by the wavelength (in metres)
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Post by robbage »

299792458 mps in a vacuum, if you want to be exact. Slightly less in air, as you might have noticed…
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