Hi
If you call Meade they will tell you that the manual is incorrect. The upper
scale is used for the Northern Hem.

Boris
-----Original Message-----
Date: Monday, April 06, 1998 8:02 AM
Subject: [M]: ETX Setting Circles


>A *quick* :-) question concerning setting circles on the ETX:
>
>A friend has an ETX and is determined to use the circles! The manual says
>to use the upper set of numbers for the S hemisphere and the lower for the
>N, which is where we are. However he finds that they work in the opposite
>sense, in that if you align the RA for the current object against the
>registration mark on the base, when you move the scope to the next object
>the scale moves in the wrong direction - if using the lower scale. Simple
>pragmatic solution: use the other scale. However these things set you off
>wondering ...
>
>Looking at my LX200, the inner set (manual says S) increases clockwise, and
>the outer set (manual says N) increases anticlockwise. When slewing by
>hand, moving the scope west decreases the RA reading on the outer scale,
>correctly. Using the RA manual control, the fork (and hence the vernier
>registration mark) moves while the scale stays put relative to the drive
>base. Comparing this to the ETX, the outer scale on the LX would seem to
>correspond to the lower one on the ETX, which also increases anticlockwise.
> However, when he moves his scope manually, the scale turns with the forks
>and so moves relative to the mark on the drive base. On both scopes the
>scale turns with the forks when driven by the RA motor.
>
>It seems that either the manual is wrong, or there is a problem with his
>scope, which seems less likely. Any ETX, or better still, ETX + LX owners
>care to comment?
>
>BTW, he asked the dealer, who said "why would you want to use the setting
>circles?" <ROFL>
>
>Nigel
>054d27m N 001d09m W

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