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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Calculating waveguide size
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<blockquote data-quote="dreambox1959" data-source="post: 1079452" data-attributes="member: 314801"><p>i am studying av-comm polarizer and "polopipe" (from brazil) (device for convert circular to linear)</p><p>i have found some calculation about wavelenght in pipe but i have two variant of the same equation :</p><p></p><p>LG = L / (racine (1 - ( L / (2.d))^ 2))</p><p>LG = L / (racine (1 - ( L / (1.6406.d))^ 2))</p><p></p><p>lg = wavelenght in pipe </p><p>L=wavelenght in air </p><p>d=pipe diameter </p><p></p><p>in the second way 1.64.06 matches with polopipe described on south american forums</p><p>first way is classical value found in mathmatical topics </p><p></p><p>does someone knows this subject and can gives me advice </p><p></p><p>[ATTACH]127193[/ATTACH][ATTACH]127194[/ATTACH][ATTACH]127195[/ATTACH]</p><p></p><p>[ATTACH]127196[/ATTACH][ATTACH]127197[/ATTACH]</p></blockquote><p></p>
[QUOTE="dreambox1959, post: 1079452, member: 314801"] i am studying av-comm polarizer and "polopipe" (from brazil) (device for convert circular to linear) i have found some calculation about wavelenght in pipe but i have two variant of the same equation : LG = L / (racine (1 - ( L / (2.d))^ 2)) LG = L / (racine (1 - ( L / (1.6406.d))^ 2)) lg = wavelenght in pipe L=wavelenght in air d=pipe diameter in the second way 1.64.06 matches with polopipe described on south american forums first way is classical value found in mathmatical topics does someone knows this subject and can gives me advice [ATTACH]127193[/ATTACH][ATTACH]127194[/ATTACH][ATTACH]127195[/ATTACH] [ATTACH]127196[/ATTACH][ATTACH]127197[/ATTACH] [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Calculating waveguide size
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