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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
@ Nelson ...sos
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<blockquote data-quote="Vipersan" data-source="post: 786301" data-attributes="member: 325666"><p>Ok ...</p><p>Back to the start ..</p><p>having discounted plates ...scalar feeds ...and focal distance of the lnb ..</p><p>The only thing left was the new mount plates position relative to the focal point..</p><p>I used a laser pen to eastablish this ..</p><p>I found out that the laser isnt exactly central in the pen ..and thus errors can and do creep in..</p><p>So back to the good old fashioned method ..</p><p>A stick placed from the rim of the dish to the support fing ...and a mark on the stick ..</p><p>when tried in various positions clockwise around the dish .. a 3/4 inch variance was found north to south ..or top to bottom ...</p><p>requiring repositioning of the tripod ..._without_ ..the lnb fitted ..</p><p>A combination of the stick method ..and the dish eye has produced a fairly close result ..</p><p>See the pic ..(disheye and crosswires)</p><p>Proving the dishes single eye ...although useful..isn't the best method to position the feed ..(lacking paralax) .....and laser pens are not accurately constructed..</p><p>Now to start over ...but sadly I don't have time today ..</p><p>Got to open the shop in an hour..</p><p>rgds</p><p>VS</p></blockquote><p></p>
[QUOTE="Vipersan, post: 786301, member: 325666"] Ok ... Back to the start .. having discounted plates ...scalar feeds ...and focal distance of the lnb .. The only thing left was the new mount plates position relative to the focal point.. I used a laser pen to eastablish this .. I found out that the laser isnt exactly central in the pen ..and thus errors can and do creep in.. So back to the good old fashioned method .. A stick placed from the rim of the dish to the support fing ...and a mark on the stick .. when tried in various positions clockwise around the dish .. a 3/4 inch variance was found north to south ..or top to bottom ... requiring repositioning of the tripod ..._without_ ..the lnb fitted .. A combination of the stick method ..and the dish eye has produced a fairly close result .. See the pic ..(disheye and crosswires) Proving the dishes single eye ...although useful..isn't the best method to position the feed ..(lacking paralax) .....and laser pens are not accurately constructed.. Now to start over ...but sadly I don't have time today .. Got to open the shop in an hour.. rgds VS [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
@ Nelson ...sos
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