[amsat-bb] Re: RF Modules

[David Goncalves]

Is the difficulty in building the satellite, or getting it up into space?

David Goncalves
W1EUJ


On 12/29/07, Andrew Rich <vk4tec at people.net.au> wrote:
>
> I wonder if anyone has consdered RF modules for a satellite.
>
> I have been playing with a module called "Easy Radio"
>
> It takes care of the pre-amble, bit flipping and CRC. Freq = 433.900 MHz
>
> They put out in the order of mW, but I put a 30 watt amp on the end and
> wow
> !
>
> The data burst is 180 characters max, and it takes around 25ms to send.
>
> These are cheap, they cost around $80 for a full data transciever.
>
> It would eliminate a whole lot of stuff on a board.
>
> I used them for a glider tracker.
>
> Anyway here are some photos of what I am talking about.
>
> http://www.tech-software.net/glider_tx.php
>
>
> ----------------------------------------------------------------------------
> Andrew Rich VK4TEC
>
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-- 
David Goncalves