Green Xenon [Radium] wrote:
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> Hi:
>
> Let's say I am in a space station which has a 2 GHz DX AM analog
> receiver that receives the magnetic fields [while ignoring the electric
> fields] of extremely weak 2 GHz AM analog carrier signals. In addition,
> this receiver is so sensitive and powerful that it can clearly pick up
> AM carrier waves as weak as 10-to-the-power-NEGATIVE-10,000
> watt-per-meter-squared. This receiver also has a robust signal processor
> that can eliminate clipped-waveforms [such as square waves], spikes,
> clicks, pops, hiss, and random noise even at those trivial wattage
> levels. After eliminating those unwanted signals, the carrier wave is
> amplified. This receiver has an astronomically-powerful amplifier which
> amplifies those extremely-soft carrier waves until the resulting
> modulation signals will be just loud enough for the human ear to
> coherently detect. Following this amplification, the carrier waves are
> demodulated to modulation waves -- the stuff we "hear" -- and then sent
> to loudspeaker so those onboard can hear those sounds.
>
> Equally important, the 2-GHz receiver is pointed away from the earth to
> assist in preventing the pickup of signals generated from Earth.
>
> If I am on this spaceship, what will I most likely hear on the radio?
>
>
> Thanks,
>
> Radium
Depends on where you are. Electromagnetic emissions from the Earth
greatly increased after WW II with the advent of widespread television
broadcasting. This resulted in a veritable step function in the sphere
of energy expanding as it races away from the Earth at the speed of
light. On the very leading edge of that sphere of energy are the Howdy
Doody Show and the McCarthy hearings. This explains why no aliens have
ever visited the Earth. But it sounds like programming that's right up
your alley. If you can find that sweet spot in space, sit back and enjoy.
Plutonium