[amsat-bb] Re: GEO sats and Australia

Tony Langdon vk3jed at gmail.com
Wed Dec 19 17:20:28 PST 2007

At 12:08 PM 12/20/2007, Dave Guimont wrote:

>I really don't see much of a technical challenge with a geo, but if 
>that is the lie of the lie, so be it.

You still have to have the ERP to get into the bird, whatever mode it 
uses.  It's not going to be a "HT special".  In fact, I doubt FM 
would be supported on it.  More likely would CW, SSB and digital 
(both voice and data) modes, since these are spectrally more efficient.

>A cell phone has about the same degree of difficulty...

You've had to put up crossed Yagis to use your cell phone lately? 
;)  I certainly haven't. :D  However, not having to rotate my 
antennas will be a major advantage.  The cost and mechanical issues 
of rotators aren't feasible for me at this time.

>And who gets the 1st third....or will all three be installed at the time??

That would be up to Intelsat I suspect....

>I'd rather see one similar to AO7 or 8 with ssb/cw, and bandwidth to 
>enable many users, rather than the dumb FM voice (2 user) bird 
>AMSAT-NA spent all that money on...

Well, I would like to see something higher than a LEO, CW/SSB (at 
least when I tried on RS-12/13 a few years back) was very 
lonely.  Everything here is so far apart that altitude is needed to 
get out of our backyard, so to speak.  I'd also like to see Eagle up 
too (and work out some way of manually rotating the antennas. :)

73 de VK3JED

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