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Re: Re Lunar Repeater



How about a solar sail powered repeater platform @L1?
----- Original Message ----- 
From: "Reicher, James" <JReicher@hrblock.com>
To: "Bruce Bostwick" <lihan161051@earthlink.net>; <amsat-bb@AMSAT.Org>
Sent: Wednesday, March 03, 2004 8:05 PM
Subject: RE: [amsat-bb] Re Lunar Repeater


> Just a thought...  
> 
> Since we're talking about having it go up as part of a launch that's
> already going up, and it will be based where the settlement is, why not
> just have the transponders, control units and antennas integrated into
> the rest of the structures that already will be there?  That way it can
> be tied into the power grid for the settlement, there won't be a need to
> power down over the lunar night, and the electronics can be accessible
> inside the shelter.  
> 
> 73 de N8AU, Jim in Raymore, MO
> 
> -----Original Message-----
> From: owner-AMSAT-BB@AMSAT.Org [mailto:owner-AMSAT-BB@AMSAT.Org] On
> Behalf Of Bruce Bostwick
> Sent: Wednesday, March 03, 2004 6:33 PM
> To: amsat-bb@AMSAT.Org
> Subject: Re: [amsat-bb] Re Lunar Repeater
> 
> Yeah, but .. keeping it active through the night is the best way to 
> keep the circuitry from getting too cold to survive.  It's not 
> necessary to have the transponder actually relaying signals, but it's 
> important to at least keep it warm and keep the amplifiers running when 
> there's no sunlight on the electronics because otherwise the cold will 
> kill them.  You probably do want to shut down the transponder signal 
> path except for the telemetry and command links, because the power 
> budget will be limited at night, but you definitely want to keep 
> everything warmed up ..
> 
> 
> 
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