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Re: Source for aluminum dish
- Subject: Re: [amsat-bb] Source for aluminum dish
- From: Bruce Nolte N3LSY <brucenol@xxxxxxx>
- Date: Sat, 08 Feb 2003 08:56:53 -0500
- In-Reply-To: <3E44FDCE.FB37548E@tampabay.rr.com>
- User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:1.3a) Gecko/20021212
Anderson does sell some smaller offset dishes, down to .75 meters in
size. Below about 1 meter, the support structure for the feed of a prime
focus dish starts to significantly cut into the efficiency of the dish.
This is why many small dishes use an offset feed on them, and most of
the BBQ dishes have the feed coming out from the center of the dish to
minimize the effect of the feed and support structure.
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