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Old 18-08-2010, 04:21 PM
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higginsdj
A Lazy Astronomer

higginsdj is offline
 
Join Date: Mar 2006
Location: Canberra
Posts: 614
A word of warning. PEC training is only as good as the quality of the RA mechanics. LX200 scopes aren't that good. My LX200GPS has +45/-67 arcsecond PE (using PemPro) After a great deal of training I got that down to +/- 7 arcseconds. However, when I slewed the scope 90 degrees, the Pe was up to +/- 15 arcseconds. So even though you might be able to train the PE at a certain point on the RA drive, the lack of drive quality means you will not see consistant results.

In simple terms, if you need low PE on an LX200 scope then you need luck (to get a scope that just happens to have a quality drive).

Also note that Meade do not warrant PE and they stated to me that any amount of PE was acceptable - ie no fix for the poor quality of the drive will come from Meade just because you hace high and/or inconsistant PE.

I've been living with it for 10 years now and am thankful for auto guiding but it does become a major problem when no guidestar is available...
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