[amsat-bb] Re: new to amsat

Roger Kolakowski rogerkola at aol.com
Sat Nov 24 11:15:50 PST 2007


To transmit a picture which has any resolution would require a large file
and a lot of clear, interference free reception...perhaps you might take a
look at APRS which can use GPS to define location. Trying to send pictures
will use up many interference free passes on a satellite which leaves no
time for other users.

Turning on, turning off, movement code is much simpler. Google: Packet Radio
control, AX.25, APRS. If you use existing code, forego the pictures for a
change in location on a displayed map, and use the current crop of Packet
radio Satellites, with an Amateur Radio license of course, your
communications project is very doable and might give you 9 to 12 passes per
day to conduct your experiments.


----- Original Message ----- 
From: "truckwiz" <truckwiz at bwig.net>
To: "'Ransom, Kenneth G. (JSC-OC)[BAR]'" <kenneth.g.ransom at nasa.gov>;
"'Jeremy Ramirez'" <jramirez at wheatonparks.org>; <amsat-bb at amsat.org>
Sent: Saturday, November 24, 2007 1:09 PM
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
> 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
> several reasons for doing it this way .We need the practice powering up
> down, we also need to see that the rover has a good plan if it misses
> instructions for one reason or another.

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