Hi Andrew, AO-51 is essentially a "next generation" PACSAT. Each craft runs its own OS, which are all similar. Google Harold Price NK6K and you'll find this link: http://www.amsat.org/amsat/sats/nk6k/msatmain.html It gives a few important tidbits so you can see the general picture of satellites, OS, file systems, etc.
The size of the upload depends on the satellite; usually there are multiple files, and their sizes vary. In the end, it's something under 1MB in total. Each piece of code adds more functions. So, it's a flying computer with CPU and memory and the OS and applications have to be uploaded and started...not a foreign concept for anybody that has installed an application! Most satellites these days will probably use a the 9600 baud "standard" data rate for uploading. When you only get a few minutes to upload/test just a few times each day, it takes a while to pull the whole thing off using a 9600 baud RF connection. The good news is that Gould is really good at it :) 73, Mark N8MH ___ Re: AO-51 repeater back in operation Subject: [amsat-bb] Re: AO-51 repeater back in operation From: "Andrew Rich" <vk4...@xxxxxxxxxxxxxxxxx> Date: Mon, 14 Sep 2009 01:22:11 +1000 Could you explain a bit about the software load Operating system How much you have to upload data rates ? ---------------------------------------------------------- Andrew Rich Airways Technical Officer Grade 4 Surveillance - RADAR ADS-B Amateur Radio Callsign VK4TEC email: [email protected] web: www.tech-software.net ----- Original Message ----- From: "Gould Smith" <[email protected]> To: <[email protected]> Sent: Monday, September 14, 2009 1:13 AM Subject: [amsat-bb] AO-51 repeater back in operation >I turned on the main AO-51 repeater this morning (145.92/435.300). The >software reload continues, the software could crash when the last two tasks >are loaded and activated. > > 73, > Gould, WA4SXM for the Command Team Mark L. Hammond [N8MH] _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
