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Re: JUly 2001 President's Letter



Is it possible to get local AMSAT organizations to do group purchases to
reduce import problems?

73,

John
KD6OZH

----- Original Message -----
From: "Nicolaus Sallay" <n.sallay@internext.com.br>
To: "Dan James" <nn0dj@wiktel.com>; "'Amsat BB'" <amsat-bb@AMSAT.Org>
Sent: Friday, 20 July 2001 22:47 UTC
Subject: Re: [amsat-bb] JUly 2001 President's Letter


> - my two cents about Project JJ
> regards
> Nicolaus Sallay - PP8DA
> E-mail : n.sallay@internext.com.br
>
> > 1) Sideband uplinks on L and U bands with a S-band downlink;
> > 2) Digital communications (TDMA) L-band uplink with S-band downlink;
> > 3) V-band telemetry beacon;
> > 4) Gain antennas for U, L, and S-bands;
> > 5) Omni-directional antennas (for initial commands);
> > 6) Propulsion system only if absolutely necessary. This is function of
> > yet undetermined launch dynamics and may require some form of
> > cold gas propulsion system for perigee adjustment. A decision on this
will
> > be made in the near future.
>
> - After reading the above decisions, I am concluding that a huge part of
world's
> Ham population has been excluded from the possibility of operating this
> new bird due to the high tech specifications and the cost involved, as
well as
> the removal of V/U capabilities.  TDMA looks very much like an elitist
project.
> Further, and for hams outside USA, the difficulties to get hardware at
reasonable
> prices, will drastically reduce participation. Unfortunately AO-40 has
serious pro-
> blems and we lost AO-10's replacement


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