Subj : Re: Moon bounce
To   : alt.ham-radio.vhf-uhf
From : nospam
Date : Fri Oct 14 2005 22:51:48

From Newsgroup: alt.ham-radio.vhf-uhf

On Fri, 14 Oct 2005 15:44:05 -0500, Chris W <1qazse4@cox.net> wrote:

>I have been reading about moon bounce on the net.  There is a lot of 
>very conflicting data.  Some say it takes 2,000 watts and the best 
>antenna array money can buy.  Others say it can be done with 10 watts.  
>Is there anyone here that does it on a regular basis that can tell me 
>what it really takes? 

Ok EME can be done a lot of ways.  

One is brute force with big antennas and power so you (human) can hear
the retured signals.

The other is with moderate power in the 100-400 watt region and
smaller more modest (still large) antennas and use computers and 
JT65 or other software to encode and decode signals that your 
(human) ear can' hear in the noise.

I don't know that people have reached the 10w level yet.

> Also a lot of what I have read talks about using 
>2M to do the moon bounce, wouldn't a higher frequency work better?

Yes, 432 and higher can help make the antennas smaller but then
you run into feedline losses and getting low noise recievers.   So 
there are conflicting tradeoffs.

Allison
KB!GMX

.