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#41
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AM electromagnetic waves: 20 KHz modulation frequency on anastronomically-low carrier frequency
On 6/30/07 11:27 PM, in article , "John Smith
I" wrote: Don Bowey wrote: ... You are an idiot ... bother some one who has the time to take you to task ... Open your mind. |
#42
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AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency
On Jun 30, 2:55 pm, John Smith I wrote:
Radium wrote: ... I am getting conflicting answers. Some say it's possible to modulate a carrier frequency at a frequency higher than the carrier frequency, others say it isn't. Who is right? Radium: Use simple logic, you can modulate a dc (0 Hz) with higher freq (voice), (hint, your telephone line is an example) right? However, when you get into RF--possible, usable, desirable are seperate and distinct things. Again, with simple logic, modulating a 30 CPS signal with limited voice freq (say 5K wide) is going to create a LOT of harmonics and mixed signals, ain't it? Suggesting a very wide band receiver would be needed to begin with ... in my humble opinion, and for various reasons, NO, it is NOT possible ... Regards, JS radium, I applaud you in your interest generating discussion. if there are no questions there are no answers; dumb or smart! to me your questions came across wonderfully, and generated both responses. as humans we stand on two legs, most of us that is. men get the honor and privilage to stand on three legs from time to time. this is our blessing and our curse! ps. how would u like to change the cell phone industry? and your discussion group of course! remeber all things are possible!!!!!!!!!!!!!!!! |
#43
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AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-lowcarrier frequency
Don Bowey wrote:
Open your mind. Geesh! Hook up a 20X linear behind an xmitter and see if you can't find some artifacts ... JS |
#44
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AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-lowcarrier frequency
DTC wrote:
Jeff Liebermann wrote: Argh, that brings back fond nightmares of Ma Bell. And of splicing damaged buried plant in a wet trench...that stuff had a bite to it. The Coax we used for the repeaters was fed with 250-0-250V DC and the current was regulated at 49mA. The only time the cable jointers worked on it the power feed was disabled. |
#45
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AM electromagnetic waves: 20 KHz modulation frequency on anastronomically-low carrier frequency
On 7/1/07 8:05 AM, in article , "John Smith I"
wrote: Don Bowey wrote: Open your mind. Geesh! Hook up a 20X linear behind an xmitter and see if you can't find some artifacts ... JS Sheesh.... That has nothing to do with helping someone understand AM. It appears you are more interested in dumping your blog on this board, than providing something to clarify the real answers for an electronic novice. |
#46
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AM electromagnetic waves: 20 KHz modulation frequency on anastronomically-low carrier frequency
On 7/1/07 8:05 AM, in article , "John Smith I"
wrote: Don Bowey wrote: Open your mind. Geesh! Hook up a 20X linear behind an xmitter and see if you can't find some artifacts ... JS By the way, I have. A 10B to a GPT750. |
#47
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AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-lowcarrier frequency
Don Bowey wrote:
That has nothing to do with helping someone understand AM. It appears you are more interested in dumping your blog on this board, than providing something to clarify the real answers for an electronic novice. So, you will decide what he needs to know and what he doesn't? If he becomes aware of the more esoteric and trivial it is dangerous. Get real control freak! JS |
#48
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AM electromagnetic waves: 20 KHz modulation frequency on anastronomically-low carrier frequency
On 7/1/07 8:39 AM, in article , "John Smith I"
wrote: Don Bowey wrote: That has nothing to do with helping someone understand AM. It appears you are more interested in dumping your blog on this board, than providing something to clarify the real answers for an electronic novice. So, you will decide what he needs to know and what he doesn't? If he becomes aware of the more esoteric and trivial it is dangerous. Get real control freak! JS You really are thick headed if you can read Radium's posts and can't see how he can't even deal with the real topic, much less the junk you toss in. The more esoteric material should come after there is a grasp of the basics. |
#49
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AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-lowcarrier frequency
Don Bowey wrote:
You really are thick headed if you can read Radium's posts and can't see how he can't even deal with the real topic, much less the junk you toss in. The more esoteric material should come after there is a grasp of the basics. What, you have already given up on him and consigned him to a special education class? Damn, I missed him being that dense, of course I tend to give everyone the benefit of the doubt--even you ... JS |
#50
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AM electromagnetic waves: 20 KHz modulation frequency on anastronomically-low carrier frequency
On 7/1/07 8:55 AM, in article , "John Smith I"
wrote: Don Bowey wrote: You really are thick headed if you can read Radium's posts and can't see how he can't even deal with the real topic, much less the junk you toss in. The more esoteric material should come after there is a grasp of the basics. What, you have already given up on him and consigned him to a special education class? Damn, I missed him being that dense, of course I tend to give everyone the benefit of the doubt--even you ... JS As a matter of fact, as you should be able to see, I am working here in support of his learning process while you do nothing but rag on in support of your blog. |
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