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Sky Digital BSkyB, Freesat & Saorsat support forum
Saorsat - Saorview
Receiver that can talk to a Ka band LNB
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<blockquote data-quote="zg3409" data-source="post: 880864" data-attributes="member: 378078"><p>I think the left hand circular polarisation or right hand circular debate is a bit confusing. Firstly the signal hitting a dish will cause the polarisation to become oppose (this is a circular polarisation thing) so the LNB polarisation vs the signal from the satellite polarisation is opposite. Also in the USA all the LNBs seem to use 13V for Left hand and 18V for Right hand, but the EU LNB from Eurtelsat is the exact opposite! If you use crazyscan or any receiver that has a circular polarisation option, the software will generally be written for the USA and so it will apply 13V instead of 18V and vice versa. See the USA had a standard and the EU created a better OPPOSITE standard. I never bothered to ask the crazyscan guy to make an option for Circular EU and Circular USA!</p><p> </p><p>LHCP polarization = 13V for EU KA</p><p>RHCP polarization 18V for EU KA</p><p> </p><p>Input Frequency Range 19.7 ~ 20.2 GHz</p><p>Output Frequency Range 1500 ~ 1000 MHz (spectrum inversion)</p><p>Low Band LO Frequency 21.20 GHz (there is only one LO)</p><p>Polarization Dual circular for Ka band (RHCP/LHCP)</p></blockquote><p></p>
[QUOTE="zg3409, post: 880864, member: 378078"] I think the left hand circular polarisation or right hand circular debate is a bit confusing. Firstly the signal hitting a dish will cause the polarisation to become oppose (this is a circular polarisation thing) so the LNB polarisation vs the signal from the satellite polarisation is opposite. Also in the USA all the LNBs seem to use 13V for Left hand and 18V for Right hand, but the EU LNB from Eurtelsat is the exact opposite! If you use crazyscan or any receiver that has a circular polarisation option, the software will generally be written for the USA and so it will apply 13V instead of 18V and vice versa. See the USA had a standard and the EU created a better OPPOSITE standard. I never bothered to ask the crazyscan guy to make an option for Circular EU and Circular USA! LHCP polarization = 13V for EU KA RHCP polarization 18V for EU KA Input Frequency Range 19.7 ~ 20.2 GHz Output Frequency Range 1500 ~ 1000 MHz (spectrum inversion) Low Band LO Frequency 21.20 GHz (there is only one LO) Polarization Dual circular for Ka band (RHCP/LHCP) [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Saorsat - Saorview
Receiver that can talk to a Ka band LNB
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