[linux-dvb] X-polarisation - what's ?

Igor goga777 at bk.ru
Tue May 20 12:50:55 CEST 2008


> here there's FAVAL Single LNB 0.2dB (X-polarization) - HDTV/S2 - EAN: 4260107560265
> http://www.dvbshop.net/product_info.php/info/p210_FAVAL-Single-LNB-0-2dB--X-polarization----HDTV-S2.html
> 
> what's X polarisation and why the description points out on HDTV/S2 ?


I have founded the information
http://www.eutelsat.com/business/2_6_1.html

X-Polarisation	A more precise definition of horizontal linear polarisation. X-polarisation is defined with respect to a particular direction from the satellite towards the earth, allowing precise calculation of the polarisation alignment angle for any given geographic location.
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Y-Polarisation	A more precise definition of vertical linear polarisation. Y-polarisation is defined with respect to a particular direction from the satellite towards the earth, allowing precise calculation of the polarisation alignment angle for any given geographic location.





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