Reply to thread

Message: <blockquote data-quote="Vipersan" data-source="post: 722222" data-attributes="member: 325666">Hi friends ..Since I use an electrically switched LNB on my Prime focus dish ...the only aspect of reception I have never attempted to tweak is the skew ..There has been no need ..but as everyone will know I am concentrating my efforts on fringe reception so I have a few basic questions ..Just how critcical is skew adjustment on a pf dish ..?Firstly ..since 90% of cband birds receivable in the uk are Right or Left polarized ..Ia skew a factor ?Am I right in assuming that the positioning of the dielectric plate in the lnbf throat is all that matters ...In other words ..assuming the plate is correctly positioned at 45 degrees to the 2 aerials/lnbs within the throat that no amount of reasonasble error introduced by rotating the whole lnbf/plate assembly a few degrees will make any difference to reception signal strength or quality ?Assuming this is true...This would not effect any skew compenstation intoduced by rotating the lnbf minus the plate of course ...for Horizontal/Vertical transponders on those extreme birds such as 55W and 58 West.So ..my question remains ...does a prime focus dish automatically position the lnbf/skew at the extremes of dish travel in the same way an offset dish does ?Is orientation compensated for during prime focus dish travel throughout its passage of the arc ?What I'm wondering is whether it would be advantageous to set the skew (if neccessary) of the lnbf at the extreme west of my dish position ...and that this tweak of maybe a few degrees would have little or no effect on L/R polarised transmissions from the other 80% of birds ..when the dielectric plate is inserted for exampl at 0.8West ..I hope this all makes sense ..I haven't tried any of this yet ..as I'm not sure if skew is such an important facror ...and don't want to mess up my system unneccessarily..Any input most welcome.rgds allVS</blockquote>

Verification