Ku LNBF polarization orientation definition?

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rmagt

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Original poster
Jul 24, 2019
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maine
For a standard, off the shelf, Chinese Ku band "universal" LNBF, what's the reference condition for polarization, i.e. is it the output connector up/down or left/right?

I know that 11.5~14v is "vertical" polarization and 16~19v is "horizontal" polarization, but it obviously matters in which direction the output connector is pointing, down or to the side. I'm guessing the polarizations are defined with the output connector pointing down (or up), but that's just a guess. Is this correct?
 
:welcome to the forum rmagt
Most LNBF would have a degree scale -30° ~ 0° ~ +30° for setting skew. You usually find the "F" connector in the 6:00 position (vertical)
 
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For a standard, off the shelf, Chinese Ku band "universal" LNBF, what's the reference condition for polarization, i.e. is it the output connector up/down or left/right?

I know that 11.5~14v is "vertical" polarization and 16~19v is "horizontal" polarization, but it obviously matters in which direction the output connector is pointing, down or to the side. I'm guessing the polarizations are defined with the output connector pointing down (or up), but that's just a guess. Is this correct?

Always down, or always up, (0 reference) would ONLY be when it's at True South, which would be the highest point of the sat arc for your location. That's likely not pointing at a satellite right there either. NOT necessarily your Southernmost satellite, but real TRUE South for your location. Or, if you are setting up a dish on a HH motor, or a dish on a polar mount.

Otherwise if the dish is on a fixed mount, you need to twist the lnbf to what degree reference that particular satellite is for your location. You can figure that out here: DishPointer - Align your satellite dish
 

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