Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Satellite TV receivers & systems support forums
Fringe Reception General
Anyone tried to make BIG dish at home?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="fta-elite" data-source="post: 749049" data-attributes="member: 367748"><p>In a Cassegrain antenna the feed is located on or behind the dish, and radiates forward, illuminating a <strong>convex hyperboloidal</strong> secondary reflector at the focus of the dish. </p><p></p><p>Gregorian antenna is similar to the Cassegrain design except that the secondary reflector is<strong> concave (ellipsoidal)</strong> in shape.</p><p></p><p>Some questions:</p><p></p><p>Can a Cassegrain subreflector be used as a gregorian subreflector or viceversa?</p><p></p><p>If I want made a Cassegrain subreflector, how to calculate the size and the shape for my antenna (or any antenna)?</p><p></p><p>How to calculate the focus in a Cassegrain antenna?</p><p></p><p>regards</p><p>fta-elite</p></blockquote><p></p>
[QUOTE="fta-elite, post: 749049, member: 367748"] In a Cassegrain antenna the feed is located on or behind the dish, and radiates forward, illuminating a [B]convex hyperboloidal[/B] secondary reflector at the focus of the dish. Gregorian antenna is similar to the Cassegrain design except that the secondary reflector is[B] concave (ellipsoidal)[/B] in shape. Some questions: Can a Cassegrain subreflector be used as a gregorian subreflector or viceversa? If I want made a Cassegrain subreflector, how to calculate the size and the shape for my antenna (or any antenna)? How to calculate the focus in a Cassegrain antenna? regards fta-elite [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
Fringe Reception General
Anyone tried to make BIG dish at home?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top