[amsat-bb] Re: Lunar Architecture Moon Base
jason at jason.white.name
Fri Dec 8 08:18:13 PST 2006
Edward R. Cole wrote:
> With a manned base I would offer that a tracking antenna is practical.
> Perhaps it could be made piggy-back to NASA's comm system? Of course there
> is always electronically steered arrays. Perhaps a quad of dishes pointed
> to cover the 10-degree area of lunar sky the earth moves thru? Then only a
> 4-way coax switch to track. The 8-foot dish on the Moon has a 3.65 degree
> bw at 2400 MHz.
> Ed - KL7UW
The thread on a lunar based transponder has me wondering.. How were the
comms with the Apollo missions done? What frequencies/modes? Did
amateurs and utility listeners of the time copy much of anything from
the moon while man was there? Did they have these same problems or did
the fact that Eagle was in orbit solve them?
I've heard the crackly "That's one small step.." recordings, and it sort
of sounds like SSB, but I had never really thought about it before. Now
that I think about it, copying that signal would probably have been the
rarest utility DX ever!
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