[eagle] Re: Suggested 2008 Efforts

Robert McGwier rwmcgwier at gmail.com
Fri Nov 9 21:33:35 PST 2007

The build out of the phased array is in the budget, including testing, 
etc.  I am sorry if that was not clear.  Rick is discussing TDRS as a 
possibility on the ISS with out Intelsat proposal.  That is only 
possible with a new antenna on another part of the station and it will 
need to be steered electrically if we are to ever use it.

If we have to fly Eagle spacecraft or just plain desire to do so,  it 
will not be able to meet its operational goals without the phased array.


Dick Jansson-rr wrote:
> Bob:
> While you are looking at the plans for what we need to accomplish in 
> 2008, I think that in the RF area we should include a physical modeling 
> of at least the key parts of Tom Clark’s suggested phased array antenna. 
> We need to prove the principle. We will need the RF amplifiers and 
> distributed gain aspects of this antenna to meet our orbital RF power 
> and directivity goals. This then demands the creation of some real 
> hardware – getting us past the heise luft part of the design into 
> something that can point us to what the all-up, on-orbit hardware should 
> look like.
> If this line is not examined, we then need to have a proposal for what 
> we should pursue..... Tom’s proposal seems like a reasonable starting 
> point. Such an project will require the efforts of a multi-technology team.
> ’73,
> Dick Jansson, KD1K
> kd1k at amsat.org <mailto:kd1k at amsat.org>
> kd1k at arrl.net <mailto:kd1k at arrl.net>

AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
“An optimist may see a light where there is none, but why
must the pessimist always run to blow it out?” Descartes

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