Re: EME moonbounce?

[Qua Veda <qua@oregon.com>]

The signal would be electrical and not audio, of course.  and the very 
long wire would essentially act like a large resistor.
signal to noise might become a factor to deal with

this reminds me of folks who listen to lightning strikes  (called 
'whistlers' ) by attaching some sort of electrical device to long runs of 
wire fencing out in remote , northern plains areas.  

lightning strikes around the world generate fluctuations in the magnetic 
fields that can be picked up my these very long 'antennas'

for a better source of info than my questionable memory...   
http://en.wikipedia.org/wiki/Whistler_(radio)

-Qua



On Dec 24, 2010, at 3:28 AM, Rick Walker wrote:

> The problem with this idea from a practical standpoint
> is I think that any wire that would carry an audio signal is also
> going to be an antennae.
> 
> the reason why long runs of microphone cables always use balanced chords
> is to defeat this phenomenon.
> 
> two wires are thrown out out of phase and the audio is only passed 
>through
> one.     consequently,  any radio  signals that come in through the wire
> will cancel each other out being 180 degrees out of phase with each 
>other.
> 
> Also,  the spool would need to be unravelled because if it wasn't , then 
>the sound
> you put into it would just transfer through all of it since it would be 
>touching.
> 
> You might find a highway construction site (if anyone is constructing 
>hiways in
> the crumbling empire of the US these days) and catch them
> right as they are laying cables.
> 
> You'd have to contact them officially as I imagine that it's illegal to 
>be on site of
> such construction (due to the huge amount of theft of wire from 
>construction
> sites these days........copper is really, really valuable and thieves 
>target new building
> sites constantly, making a lot of money if they get away
> 
> Cool idea.  I hope you can manifest it.
> 
> Merry Christmas,  Daryl.   May 2011 be a fantastic year for your 
>considerable
> talent and artistry.
> 
> rick walker
> 
> 
> On 7/22/64 11:59 AM, Daryl Shawn wrote:
>> I always wondered if one could send a signal through a tremendously 
>long wire, long enough that it would take the sound an appreciable length 
>of time to arrive, thus creating a delay with relatively little loss of 
>fidelity (though I'm sure there'd be a loss of gain, which would need to 
>be made up, thus adding some noise to the end signal). Possible? Should I 
>look around for a five-mile spool of speaker wire and try it out?
>> 
>> I assume that the speed of the signal through the wire would not be 
>limited to the speed of sound in open air, hence it would need to be 
>quite a long length...
>> 
>> Daryl Shawn
>> www.swanwelder.com
>> 
>> 
>>> OK, this might be totally technically naiive but with a time delay of 
>around 2 seconds it IS possible to bounce radio signals offf the moon.
>>> Does anyone here know what sort of fidelity the resultant echo would 
>be ? - you can see where I'm going with this...
>