RE: [amsat-bb] Some P4 moon landing ideas :-)

["Reicher, James" <JReicher@xxxxxxxxxxx>]

The high gain antenna wouldn't need any steering to look back at Earth, once
it was set.  The Moon is in a tidal lock with Earth and is ALWAYS showing
the same side to us.  Aiming a gain antenna to lock in would be relatively
easy since once the aim is set, you'd never have to move it again!

You could do aim your Earth-based antenna with a sighting scope and merely
adjust manually over time as the Moon travelled overhead.

-----Original Message-----
From: Edward R. Cole [mailto:al7eb@ptialaska.net]
Sent: Monday, July 01, 2002 4:00 PM
To: amsat-bb@AMSAT.Org
Subject: RE: [amsat-bb] Some P4 moon landing ideas :-) 



>I'd like to see a concept in which a lunar-based relay would be more
>advantageous than a satellite.  The Moon is about 8 times further away than
>AO-40 at apogee (~18 dB more path loss).
>
>Ken Ernandes, N2WWD

Yep!  And the high gain antenna will need precise stearing to stay looking
at the Earth.  I more probable project might be just a lunar-based
repeater...for use by the Astronauts to talk back to Lunar Base One from
their rover!  No particular advantage for Earth-based hams, though!  

Ed, AL7EB 

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