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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
Why dual IF LNBs?
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<blockquote data-quote="Channel Hopper" data-source="post: 1064508" data-attributes="member: 175144"><p>Circular polarity is decided by the mechanical design though, since the probes inside are - almost certainly - installed at 90 degrees apart, the polarity will always be circular, regardless of frequency.</p><p></p><p>(Caveat- some dielectric material does have permittivity that is frequency dependent but not a 45 degree phase change at C band).</p></blockquote><p></p>
[QUOTE="Channel Hopper, post: 1064508, member: 175144"] Circular polarity is decided by the mechanical design though, since the probes inside are - almost certainly - installed at 90 degrees apart, the polarity will always be circular, regardless of frequency. (Caveat- some dielectric material does have permittivity that is frequency dependent but not a 45 degree phase change at C band). [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
Why dual IF LNBs?
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