[amsat-bb] Re: Eagle?

Edward Cole kl7uw at acsalaska.net
Thu Jun 19 00:44:36 PDT 2008

At 12:11 PM 6/18/2008, ANTHONY JAPHA wrote:
>I guess there's still an Eagle sometime in our future, but seeing no 
>mention at all of it in the most recent Newsletter is 
>disconcerting.  As our most important project, shouldn't we have 
>updates in every Newsletter?  For example, is there any news about 
>the Intelsat connection that was introduced several months ago?
>By the way, the writeup currently on the Amsat home page mentions 
>ACP with a 3.4 Ghz (sic) downlink.  Just a misprint?  The nice Eagle 
>flyer shows both up- and downlink on 5.6 Ghz.
>Most important. of course, is the projected date for completion of 
>Eagle.  Maybe it can't be completely finished before the launch is 
>determined, but the transponders have been identified for some time 
>now.  Chicken and egg problems are solved by producing either a 
>chicken or an egg and then nurturing the other.  Right now, we have 
>neither.  When do we expect to have our chicken, i.e. a complete 
>electronics package?
>I have great admiration for our designers and builders, and I also 
>think that we should have some more visible time targets.  If 
>funding is an immediate issue that is limiting design and 
>construction, or if it will be an issue in the near future, we 
>should also to informed about that situation.
>Tnx and 73,
>Tony, N2UN
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It was probably mentioned in some of the Amsat Journals, but it was 
determined that the original "C-C Rider" project (5.6 GHz up & down) 
was not feasible to build.  Thus discussion ensued that ended up with 
using 3.5 GHz as a downlink.  It is much easier to build full duplex 
filters for the wider freq. separation.

Although 3.4 Ghz is not a world-wide ham allocation, anyone can 
receive there.  The Flyer probably needs an update.  I cannot answer 
on that.  All Amsat is done by volunteer work.  I suspect some tasks 
are begging some help!

I would like a little more info on Eagle and P4, as well.  Likewise 
news from Amsat-DL on P3E would be nice.

I think most of us appreciate that a lot of work goes into getting 
these new Heo's into orbit.  Most of use are armchair observers!

73 Ed - KL7UW 

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