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RE: Re: Useless CubeSats



Several are or have been developed for S-Band.  They just haven't been 
launched yet.

73,

Emily



At 01:02 PM 2/8/2005 +0000, Robert McGwier wrote:
>Do not misconstrue my statement/question as anti-Cubesat, I am not.
>
>How many cubesats are carrying communications gear for a frequency
>above 435 Mhz?  The facts are that doing so really increases the
>complexity of the required ground station and better RF engineering
>than most of these teams can probably do.
>
>Bob
>
>-----Original Message-----
>From: owner-AMSAT-BB@amsat.org [mailto:owner-AMSAT-BB@amsat.org]On
>Behalf Of KC6UQH
>Sent: Tuesday, February 08, 2005 6:55 AM
>To: William Leijenaar; amsat-bb@amsat.org
>Subject: Re: [amsat-bb] Re: Useless CubeSats
>
>
>As I see it any Satellite in the Amateur Band is good for AMSAT and the
>AMSAT Community. On 2 GHz we have 60 MHz of bandwidth then there is 3.3,
>5.6, and 10 GHz.  The 10 GHz band has 500 MHz of bandwidth.
>What will we loose? Lots of problems need solving, perhaps patch antennas on
>all sides switched to keep the pattern focused on earth. Maybe covering the
>larger patch antennas with solar cells. None of the current amateur
>satellites have a CP antenna pointed at Earth during the whole pass using
>the same rotation.
>Instead of deciding these projects are worthless, maybe some suggestions and
>guidance will help us improve the technology in our satellites.
>
>Art, KC6UQH
>----
>Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
>Not an AMSAT member? Join now to support the amateur satellite program!
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---------------------------------
W0EEC - CM87tm
AMSAT Area Coordinator - San Francisco Bay Area
http://www.projectoscar.net    http://www.PlanetEmily.com

Join AMSAT!  http://www.amsat.org
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