[Namaste-dev] Re: Dishes - roll call for experimentation
Tom Clark, K3IO
tom.k3io at gmail.com
Thu Jun 19 21:34:28 PDT 2008
> Has anyone else on the list set aside a dish for work on Namaste? I'd like to gather some data from you all and split up the work on evaluating feed designs.
> One of the first results from having dishes on hand in the lab is that there is not one standard for the feed housing and placement.
> There are, instead, a multiplicity of standards.
My efforts along a related path are seen in a contribution at
http://www.delmarnorth.com/namaste/AMSAT%201M%20dish.ppt. Note that
Slide 3 = Premise #2 shows the gain, beamwidth & pointing requirements
for a 1M dish (chosen for discussion because one meter is as good as
another :-D ). The dish I am currently experimenting with is 90 cm
This document is a presentation I gave a few months ago to the DC-area
AMSAT meeting. As you will see, I have been considering the needs of an
antenna positioner, and I have been concentrating on positioning devices
that use the DiSEQc protocol.
In this PPT presentation, I also describe interesting work that my
friend and Colleague Alan Rogers (Haystack Observatory) has been doing
using these dishes as a VSRT (very small radiotelescope) for student
use. In his notes on the Haystack website, you may find interesting the
use of Compact Fluorescent Lights (CFLs) as a calibration noise source.
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