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Re: new to amsat



There are satellites that support APRS with data rates less than 100 bps, 
but a satellite with a PacSat BBS is probably the most useful to you as 
files can be stored on the satellite and then retreived. The 1200 bps 
satellites were designed to be accessed with an omidirectional antenna, but 
only AO-16 is left and it is semi-operational. There are a some 9600 bps 
PacSats, but they require a directional antenna with 12 dBic or more gain. 
The uplink could use an omidirectional antenna if you have power to spare, 
but a directional antenna would require much less RF power.

73,

John

KD6OZH

----- Original Message ----- 
From: "truckwiz" <truckwiz@bwig.net>
To: "'Ransom, Kenneth G. (JSC-OC)[BAR]'" <kenneth.g.ransom@nasa.gov>; 
"'Jeremy Ramirez'" <jramirez@wheatonparks.org>; <amsat-bb@amsat.org>
Sent: Saturday, November 24, 2007 18:09 UTC
Subject: [amsat-bb] Re: new to amsat


> Hi,
>
>  In a perfect world here is what I would like to happen, satellite fly's
> by, rover sends a packet (or email) of info containing a photo of its
> current location and some sensor info. The next time the sat comes the 
> rover
> receives its instructions (move 5 feet forward, power down & then power up
> and take photo and be ready to send info to sat when it comes by).  There 
> is
> several reasons for doing it this way .We need the practice powering up 
> and
> down, we also need to see that the rover has a good plan if it misses
> instructions for one reason or another.
>
>
>
> Thanks Brian
>
>
>
>
>
>  _____
>
> From: Ransom, Kenneth G. (JSC-OC)[BAR] [mailto:kenneth.g.ransom@nasa.gov]
> Sent: Saturday, November 24, 2007 9:22 AM
> To: truckwiz; Jeremy Ramirez; amsat-bb@amsat.org
> Subject: RE: [amsat-bb] Re: new to amsat
>
>
>
> If you could expand on your request to "control a robot from a satellite"
> with more specifics then you are likely to get better ideas and 
> suggestions.
>
>
>
> Some additional details like... Where would the command station and robot 
> be
> located? How much time would you need to command the robot each day? What
> mode would the commands be sent in (digital, audio, FM, SSB...).
>
>
>
> Hope your project goes well.
>
>
>
> Kenneth - N5VHO
>
>
>
>  _____
>
> From: amsat-bb-bounces@amsat.org on behalf of truckwiz
> Sent: Sat 11/24/2007 5:49 AM
> To: 'Jeremy Ramirez'; amsat-bb@amsat.org
> Subject: [amsat-bb] Re: new to amsat
>
> My goal is to be able to control a robot from a satellite, I'm with a 
> group
> that is trying to compete in the lunar X prize, here's a video of our
> earthbound test rover. Also what would be the best transmitter & receiver 
> to
> buy for this goal?
>
> http://www.youtube.com/watch?v=1CKO67FwFhc
>
> Thanks Brian
>
> -----Original Message-----
> From: Jeremy Ramirez [mailto:jramirez@wheatonparks.org]
> Sent: Friday, November 23, 2007 10:58 PM
> To: truckwiz; amsat-bb@amsat.org
> Subject: RE: [amsat-bb] new to amsat
>
> Yes.  You need to have a amateur radio license for the bands you wish to
> work, specifically the "uplinks".  For example if you wanted to work some 
> of
> the LEO satellites like AO-51, SO-50, etc. you need at least a 
> "technician"
> class license.  Take a look at ARRL's information as to what bands you can
> operate with which license (see:
> http://www.arrl.org/FandES/field/regulations/bands.html).
>
> Information about the amateur satellites in operation can be found at
> www.amsat.org.
>
> Next question?  :-)
>
>  Jeremy
>  KB9QIC
>
>
> -----Original Message-----
> From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On
> Behalf Of truckwiz
> Sent: Friday, November 23, 2007 8:59 PM
> To: amsat-bb@amsat.org
> Subject: [amsat-bb] new to amsat
>
> Hi,
>
> This will be the first of probably 1000 questions. Do I need licenses to
> work with amsat satellites?
>
>
>
> Thanks, Brian
>
> _______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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>
> _______________________________________________
> Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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