On 6/29/07 9:30 PM, in article
1183177831.152287.69850@j4g2000prf.googlegroups.co m, "Radium"
<glucegen1@gmail.com> wrote:
> On Jun 29, 9:15 pm, John Smith I <assemblywiz...@gmail.com> wrote:
>
>> Radium wrote:
>>
>> WTF are you thinking when you describe the 20 Khz signal as, "a
>> pure-sine-wave-tone] with a frequency of 20 KHz and an
>> amplitude of 1-watt-per-meter-squared"
>>
>> One square meter of copper wire squared, a squared meter of modulation
>> xfrmr ... ?
>
> Sorry that should be 1 X [10^-6] Watts-per-m^2
>
> http://www.glenbrook.k12.il.us/GBSSC...nd/u11l2b.html
>
> 1 X [10^-6] Watts-per-m^2 is about the loudness of a "normal
> conversation" according to the above link.
>
> F-------------------king typos!!!!!!!!!!
>
>>
>> Your question sounds like one of a high school physics student
>> attempting to ask a seemingly logical--yet 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 mathematically-possible 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.