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Re: P3D



One big difference is the height of it's orbit.Most of the birds that are up
there now are LEO"S.

----- Original Message -----
From: Paul J. Beckmann <beckmann@scc.net>
To: David M. Tipton, PhD <tiptond@psi.com>; Bruce Paige <kk5do@AMSAT.Org>
Cc: <amsat-bb@AMSAT.Org>
Sent: Saturday, June 03, 2000 3:43 PM
Subject: [amsat-bb] P3D


> At 10:22 PM -0500 6/2/00, David M. Tipton, PhD wrote:
> >So what you're saying, is that P3D will obsolete every sat out there?
> >Maybe I'm just not getting it, but P3D looks like all the rest to me,
> >except it adds some neat new bands to play with.  Are all future sats
> >going to be similar?
> >
> >Dave
> >
>
>
>
> Dave--
>   Well, yes and no. If P3D works the way it's designed, it will be
> *very* popular. It will also have capabilities in combinations that
> no other satellite today has. Its popularity may make it hard to
> work through at times; all that attention might free up other sats
> for use as well.
>   Couple of comments:
> 1) It is very unlikely that any bird remotely like P3D will be built
> and launched within the next 5 years. It has been expensive and time-
> consuming.
> 2) It is not like all the rest with some extra bands lashed to the
> frame. Very powerful transmitters, high-gain antennas, and inertial
> stabilization to keep the antennas pointed at Earth at all times are
> just a few of the very important features of P3D.
> 3) Bruce talks about what I call the 'handheld myth'. While it is
> true that North American, European, and Asian hams will be able to
> work people within their local hemisphere with relatively simple
> gear, working the sat when it's hanging over *them* from *here*
> is still going to require some antenna gain. Take a look at the
> orbital characteristics in the many articles in QST and AMSAT-NA
> Journal, as well as the booklet I edited, available from AMSAT-NA
> "P3G for P3D".
>
> P3D, once on-orbit and operational, will provide very, very unique
> and powerful opportunities to hams world-wide! It will be unlike
> any other bird to date!
>
> 73's
> --Paul
>
>
> --------------------------------------------------------------------------
---
> Paul Beckmann -- WA0RSE     1882 South Lane
wa0rse@amsat.org
> ARRL/NLRS                   Mendota Heights, MN
cell:612-414-0302
> AMSAT #26957                55118-4328
fax:651-452-4103
> ----
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