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#1




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylow carrier frequency
Hi:
Please don't be annoyed/offended by my question as I decreased the modulation frequency to where it would actually be realistic. I have a very weird question about electromagnetic radiation, carriers, and modulators. Is it mathematicallypossible to carry a modulator signal [in this case, a puresinewavetone] with a frequency of 20 KHz and an amplitude of 1wattpermetersquared on a AM carrier signal whose frequency is 10^(1,000,000,000tothepower10^1,000,000,000) nanocycle* every 10^1,000,000,000tothepower10^1,000,000,000 giga eons and whose amplitude is a minimum of 10^1,000,000,000tothe power10^1,000,000,000 gigaphotons per 10^(1,000,000,000tothe power10^1,000,000,000) nanosecond? If it is not mathematicallypossible, then please explain why. 10^(1,000,000,000tothepower10^1,000,000,000) second is an extremely short amount of time. 10^(1,000,000,000tothe power10^1,000,000,000) nanosecond is even shorter because a nanosecond is shorter than a second. Gigaeon = a billion eons Eon = a billion years *nanocycle = billionth of a cycle Gigaphoton = a billion photons 10^1,000,000,000tothepower10^1,000,000,000  now that is one large large number. 10^1,000,000,000 = 10tothepower1,000,000,000 So you get: (10tothepower1,000,000,000) to the power (10tothe power1,000,000,000) 10^(1,000,000,000tothepower10^1,000,000,000) = 10^(10tothe power1,000,000,000)tothepower(10tothepower1,000,000,000) 10^(10tothepower1,000,000,000) to the power (10tothe power1,000,000,000) is an extremely small number at it equals 10to thepowerNEGATIVE[(10tothepower1,000,000,000) to the power (10 tothepower1,000,000,000)] No offense but please respond with reasonable answers & keep out the jokes, offtopic nonsense, taunts, insults, and trivializations. I am really interested in this. Thanks, Radium 
#2




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylowcarrier frequency
Radium wrote:
... Is it mathematicallypossible to carry a modulator signal [in this case, a puresinewavetone] with a frequency of 20 KHz and an amplitude of 1wattpermetersquared on a AM carrier signal whose The 20 Khz is obviously NOT an audio tone, but exists as VLF, what you are terming "modulation" is actually a mixing of carriers then ... and the problem with your question ONLY BEGINS there! JS 
#3




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylow carrier frequency
On Jun 29, 8:08 pm, John Smith I wrote:
The 20 Khz is obviously NOT an audio tone, Yes it is. 20 KHz is the highest audible frequency. Humans hear from 20 to 20,000 Hz. No offense but WTF are you thinking?? but exists as VLF, what you are terming "modulation" is actually a mixing of carriers then ... and the problem with your question ONLY BEGINS there! A carrier wave is modulated by the modulator wave. On most AM stations, the modulator wave consists of the voice of someone speaking. Most AM stations have carrier frequencies in the medium wave band  in the range of 520,000 to 1,160,000 cycles every 1 second. In the case I am describing, the modulator wave is a 20 KHz pure sine wave tone on a carrier frequency of 10^(1,000,000,000tothe power10^1,000,000,000) nanocycle every 10^1,000,000,000tothe power10^1,000,000,000 gigaeons. Is this scenario mathematically possible? If not, then why?? 
#4




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylowcarrier frequency
Radium wrote:
WTF are you thinking when you describe the 20 Khz signal as, "a puresinewavetone] with a frequency of 20 KHz and an amplitude of 1wattpermetersquared" One square meter of copper wire squared, a squared meter of modulation xfrmr ... ? Your question sounds like one of a high school physics student attempting to ask a seemingly logicalyet complex question, and of no real world value. Your ability at obfuscation is only mundane ... If what you say is true, you have an interest, what is the purpose of your question? JS 
#5




AM electromagnetic waves: 20 KHz modulation frequency on anastronomicallylow carrier frequency

#6




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylow carrier frequency
On Jun 29, 9:15 pm, John Smith I wrote:
Radium wrote: WTF are you thinking when you describe the 20 Khz signal as, "a puresinewavetone] with a frequency of 20 KHz and an amplitude of 1wattpermetersquared" One square meter of copper wire squared, a squared meter of modulation xfrmr ... ? Sorry that should be 1 X [10^6] Wattsperm^2 http://www.glenbrook.k12.il.us/GBSSC...nd/u11l2b.html 1 X [10^6] Wattsperm^2 is about the loudness of a "normal conversation" according to the above link. Fking typos!!!!!!!!!! Your question sounds like one of a high school physics student attempting to ask a seemingly logicalyet complex question, and of no real world value. Your ability at obfuscation is only mundane ... If what you say is true, you have an interest, what is the purpose of your question? My basic question is if I have an AM receiver which receives signals on a carrier frequency of Fc, is it mathematicallypossible for me to receive a modulator signal  on that station  of a frequency higher than Fc? If not, then why? If not, then how are the submarines which use ELFs [Extremely Low carrier Frequencies around 3 to 30 Hz] able to perform voice communications? I just stretched the question out to astronomical extremes. I have a habit of doing that. 
#7




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylow carrier frequency
In rec.radio.amateur.antenna Radium wrote:
Hi: Please don't be annoyed/offended by my question as I decreased the modulation frequency to where it would actually be realistic. I have a very weird question about electromagnetic radiation, carriers, and modulators. Is it mathematicallypossible to carry a modulator signal [in this case, a puresinewavetone] with a frequency of 20 KHz and an amplitude of 1wattpermetersquared on a AM carrier signal whose The fact that you specified the modulation in W/M^2 immediately says you don't know WTF you are talking about and the question is meaningless. You can AM modulate any frequency 0 Fc infinity with any other frequency 0 Fm infinity. Whether it's physically possible or results in massive distortion is a separate issue. snip inane crap  Jim Pennino Remove .spam.sux to reply. 
#8




AM electromagnetic waves: 20 KHz modulation frequency on anastronomicallylow carrier frequency
On 6/29/07 9:30 PM, in article
, "Radium" wrote: On Jun 29, 9:15 pm, John Smith I wrote: Radium wrote: WTF are you thinking when you describe the 20 Khz signal as, "a puresinewavetone] with a frequency of 20 KHz and an amplitude of 1wattpermetersquared" One square meter of copper wire squared, a squared meter of modulation xfrmr ... ? Sorry that should be 1 X [10^6] Wattsperm^2 http://www.glenbrook.k12.il.us/GBSSC...nd/u11l2b.html 1 X [10^6] Wattsperm^2 is about the loudness of a "normal conversation" according to the above link. Fking typos!!!!!!!!!! Your question sounds like one of a high school physics student attempting to ask a seemingly logicalyet complex question, and of no real world value. Your ability at obfuscation is only mundane ... If what you say is true, you have an interest, what is the purpose of your question? My basic question is if I have an AM receiver which receives signals on a carrier frequency of Fc, is it mathematicallypossible for me to receive a modulator signal  on that station  of a frequency higher than Fc? If not, then why? What is the design bandwidth of the "fixed frequency" receiver? When you say "modulator signal" do you mean a sideband of the transmitted signal, or do you mean at least one sideband and the Carrier, or do you mean the Carrier and both of it's sidebands? It would be good if you would attempt to understand AM modulation, and generally some of the factors of receiver design. If not, then how are the submarines which use ELFs [Extremely Low carrier Frequencies around 3 to 30 Hz] able to perform voice communications? Why do you believe they use voice communications on the ELF system? I just stretched the question out to astronomical extremes. I have a habit of doing that. You have a habit of appearing to be an idiot each time you do it. 
#9




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylow carrier frequency
"Radium" wrote in message ps.com... My basic question is if I have an AM receiver which receives signals on a carrier frequency of Fc, is it mathematicallypossible for me to receive a modulator signal  on that station  of a frequency higher than Fc? If not, then why? If not, then how are the submarines which use ELFs [Extremely Low carrier Frequencies around 3 to 30 Hz] able to perform voice communications? I just stretched the question out to astronomical extremes. I have a habit of doing that. Why not simply ask the question you mean to ask, then, rather than the absurd numbers you put in the original version of this (and which you then expect everyone to work through, just to see what the hell you might be talking about)? The answer to the question you seem to be asking is obvious if you simply work through the mathematics of what is going on in amplitude modulation. So why not simply do that, and not ask such incredibly obtuse questions? One hint: the ELF submarine communications to which you refer are NOT carrying voice communications, but very lowrate CW ("Morse code," if you want to think of it that way) signalling. Bob M. 
#10




AM electromagnetic waves: 20 KHz modulation frequency on an astronomicallylow carrier frequency
On Jun 29, 10:10 pm, "Bob Myers" wrote:
"Radium" wrote in message ps.com... My basic question is if I have an AM receiver which receives signals on a carrier frequency of Fc, is it mathematicallypossible for me to receive a modulator signal  on that station  of a frequency higher than Fc? If not, then why? If not, then how are the submarines which use ELFs [Extremely Low carrier Frequencies around 3 to 30 Hz] able to perform voice communications? I just stretched the question out to astronomical extremes. I have a habit of doing that. Why not simply ask the question you mean to ask, then, rather than the absurd numbers you put in the original version of this (and which you then expect everyone to work through, just to see what the hell you might be talking about)? The answer to the question you seem to be asking is obvious if you simply work through the mathematics of what is going on in amplitude modulation. So why not simply do that, and not ask such incredibly obtuse questions? One hint: the ELF submarine communications to which you refer are NOT carrying voice communications, but very lowrate CW ("Morse code," if you want to think of it that way) signalling. Bob M. 
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