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For those who are interested, below are some good links about
geosynchronous satellites , geostationary satellites , and the "slots"
they occupy <br>
<br>
<a href="http://thespacereview.com/article/1634/1">http://thespacereview.com/article/1634/1</a><br>
<a
href="http://space.stackexchange.com/questions/1098/how-full-is-the-geostationary-belt">http://space.stackexchange.com/questions/1098/how-full-is-the-geostationary-belt</a><br>
<a
href="http://space.stackexchange.com/questions/2515/how-closely-spaced-are-satellites-at-geo">http://space.stackexchange.com/questions/2515/how-closely-spaced-are-satellites-at-geo</a><br>
<br>
The "old 6ft" dish was used for the technology of the day, which
included lower radio frequencies with longer wavelengths as compared to
current technology.<br>
The longer wavelengths prescribed the need for the larger dish. In
addition, the satellite spacing in the orbit was wider hence the need
to steer the dish to point different satellites.<br>
<br>
As noted, with current technology, multiple horns are used to focus a
stationary dish onto 'beams' from different satellites.<br>
<br>
OT: As noted in one of the links above, in 1945 Arthur C Clarke, in his
role as a scientist as opposed to a sci-fi writer, first proposed the
concept of the geosynchronous orbit in a technical paper. He was
recognized for this work much later, after the "Clarke Orbit" was well
populated with satellites.<br>
<br>
<a href="http://en.wikipedia.org/wiki/Arthur_C._Clarke">http://en.wikipedia.org/wiki/Arthur_C._Clarke</a><br>
<br>
John Johnson<br>
<br>
On 2014-02-28 08:44, CrankyOldBugger wrote:
<blockquote
cite="mid:CAKyYXOSfVABe7Li+LeSA2F2oUg-0wjPPTH2SsnY7GCPkh7m+OQ@mail.gmail.com"
type="cite">
<div dir="ltr">My Dad's old 6ft dish was one of those motorized
monsters. It was amazing technology when we got it, but now I can't
imagine using it. The non-moving Bell satellite is just too much of a
convenience!
<div class="gmail_extra"><br>
<div class="gmail_quote">On 28 February 2014 02:25, Colin Mackay <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:zixiekat@gmail.com" target="_blank">zixiekat@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div dir="ltr"> If you want the 4
or 5 english stations, you end up having to point at 3 or 4 different
satellites, hence the need for the additional 'horns' or a motorized
dish.
<div></div>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
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