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<blockquote data-quote="Vipersan" data-source="post: 980360" data-attributes="member: 325666">[ATTACH=full]95904[/ATTACH] ...Currently crossing the equator viewed from my QTH approx 4:00 pm (descending) and 4:00 am (ascending) approx.Not today ..but I'll be trying to catch the crossing point for optimum postioning of the dish.rgdsVS...and looking at those figure sort of answers my earlier question ...unless I'm not understanding those numbers..quite possible ..there is almost a 3 degree swing on this bird N to S ..that's a lot ...and the bigger the dish the greater the gain ...and the worse for catching signals without mechanical tracking..Which begs the question ...How are you guys with 1.8m dishes coping ??...all I can say is ...thank higgs we are working in C band ..which is forgiving of about 2 degrees -max-..perhaps it would be better to choose max N or max S deviation ..cos theoretically the bird would spend a longer period of time in virtual focus during these periods of the oscillation ...but this introduces another problem ...the maximum E-W deviations close to these points ??-comments welcomed -</blockquote>

[QUOTE="Vipersan, post: 980360, member: 325666"] [ATTACH=full]95904[/ATTACH] ...Currently crossing the equator viewed from my QTH approx 4:00 pm (descending) and 4:00 am (ascending) approx. Not today ..but I'll be trying to catch the crossing point for optimum postioning of the dish. rgds VS ...and looking at those figure sort of answers my earlier question ... unless I'm not understanding those numbers.. quite possible .. there is almost a 3 degree swing on this bird N to S .. that's a lot ...and the bigger the dish the greater the gain ...and the worse for catching signals without mechanical tracking.. Which begs the question ... How are you guys with 1.8m dishes coping ?? ...all I can say is ...thank higgs we are working in C band ..which is forgiving of about 2 degrees -max- ..perhaps it would be better to choose max N or max S deviation .. cos theoretically the bird would spend a longer period of time in virtual focus during these periods of the oscillation ...but this introduces another problem ...the maximum E-W deviations close to these points ?? -comments welcomed - [/QUOTE]

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