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Training The Drive - Meade ETX 90 Manual

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Training the Drive

It is assumed that batteries have been installed into the telescope or that the scope is being
supplied with power from some source. If that is not the case, disassemble the scope from
the tripod and install the batteries. After reassembly, don't worry about any alignment
issues with the spotting scope, that is taken care of. The scope should still be pretty level,
just do a quick check to confirm and move on.
In the back of the Instruction Manual is a section called "Training the Drive." You are are
going to power up the scope and use the "AudioStar Handset." (The Instruction Manual
might refer to the Handset as the "AutoStar Handset." It is "Audio" because when you select
an object a voice from the Handset will describe the object in detail.) Read the directions
first before doing anything. Sometimes there is a thing where the "cart gets before the
horse." If you read the directions first there is less of a chance of that happening.
What Training the Drive does is help with aiming issues so the scope returns accurately from
one celestial object to another. The AudioStar Handset is a small computer that controls all
the scope's movements. Pick something displayed on the handset menu, press the "GoTo"
button and the scope moves to point directly to that object. A step in getting the scope to
move and accurately settle in on the desired object is to "calibrate" it so all the movements
are repeatable. That is what "Training the Drive" does. This only has to be done very
infrequently or if there is a decided lack of accuracy in where the scope is pointing.

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