[amsat-bb] Re: IRB's and Satellites.
vk3jed at gmail.com
Thu Apr 26 15:59:43 PDT 2007
At 03:29 AM 4/27/2007, you wrote:
>Perhaps this is all about goals then ... if your goal is to simply
>communicate via a satellite, then the remote base concept is perfectly valid
>and it has been demonstrated that it works.
>If the goal is to learn how to build a groundstation and then optimize it
>for use with satellites, then I'm not sure this will do that (unless of
>course you are the one building the station).
I think you're right. Goals are where it's at, and being in the
other VoIP games in town (IRLP, Echolink and friends), I regularly
encounter the same debate. If my goal is to simply communicate via
some (at least partly) amateur controlled medium, these modes and
IRBs are fine, whether I have RF or a PC on my end. OTOH, if my goal
is to play with RF, investigate propagation and setup a working
satellite ground station, then it's time to pull out some radio gear,
antennas and rotators and put them on the air (though for long and
complicated reasons, I'm also likely to interface that to IRLP or my
own IRB, because where I have the best space to erect antennas is
24km from where I mostly operate).
>I see it like a calculator and a slide rule ... the calculator works great,
>you just punch in some numbers and the correct result pops out. But the
>slide rule allows one to see the underlying mathematics taking shape as it
>is moved to the same answer.
>Which way is "better" must be self-determined.
Exactly, horses for courses. :)
73 de VK3JED
More information about the AMSAT-BB