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
Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
A 3.7m Prodeline dish for Astra 2D
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="Channel Hopper" data-source="post: 558382" data-attributes="member: 175144"><p>I think you need to carry out a shakedown of the reflector.</p><p>Put the dish back to the (absolute) horizontal, string it in the four positions between the reflector panels, undo all the bolts - by two turns - holding the reflectors and the support struts (long and short) , and give the dish a good shake. Then retighten.</p><p></p><p>Prime focal point of the feed is achieved with the distance about 1cm within the scalar rings.</p><p></p><p>Boresight tool is literally a tool that can be used to look down the feedhorn, and locate the centre of the reflector, be it a stiff stick, or a laser sighting unit. Failing that, measuring the edges of the scalar rings to the outside of the reflector at a distance not more than 3mm should be sufficient.</p><p></p><p>If all else fails, you may have to take the paint off the reflector.</p></blockquote><p></p>
[QUOTE="Channel Hopper, post: 558382, member: 175144"] I think you need to carry out a shakedown of the reflector. Put the dish back to the (absolute) horizontal, string it in the four positions between the reflector panels, undo all the bolts - by two turns - holding the reflectors and the support struts (long and short) , and give the dish a good shake. Then retighten. Prime focal point of the feed is achieved with the distance about 1cm within the scalar rings. Boresight tool is literally a tool that can be used to look down the feedhorn, and locate the centre of the reflector, be it a stiff stick, or a laser sighting unit. Failing that, measuring the edges of the scalar rings to the outside of the reflector at a distance not more than 3mm should be sufficient. If all else fails, you may have to take the paint off the reflector. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
A 3.7m Prodeline dish for Astra 2D
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