Subj : Re: Moon bounce
To   : alt.ham-radio.vhf-uhf
From : Brad
Date : Sat Oct 15 2005 08:56:03

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


"Chris W" <1qazse4@cox.net> wrote in message 
news:1NU3f.62$v_5.59@dukeread07...
>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? 
>Also a lot of what I have read talks about using 2M to do the moon bounce, 
>wouldn't a higher frequency work better?
>
> -- 
> Chris W


Chris, I am no expert but I am stupid enough to share what little I know.

With good software like "WSJT" you can do it with about 100W and a 10el beam 
on 2m. Just.
The lower power is now possible because of the superb decoding 
characteristics of the software allowing signals to be almost 10db weaker 
than using the human ear.

The attentuation ie path loss, is greater at higher frequencies so a larger 
antenna array is required.

Obviously, 200w and 2 antennas will produce better results. Don't forget the 
receiver pre-amp.

Brad.

.