Meade ETX-80AT, Instruction Manual

Page: 5 / 44

5
Step 11 : Secure the eyepieces in place with their
respective thumbsrews. Always start observing using a low
power eyepiece to get a nice widefield of view. Later on you
can change to high power, if so desired. But high powered
eyepieces have a much narrower field of view and it’s more
difficult to locate objects using high powered eyepieces.
Step 12 : You can focus the eyepieces by turning the focus
knob. The focus knob has a very fine focus, so you may
have to turn the knob 20 complete turns or more to focus
on an object.
Connect the AutoStar Handbox
Step 13:
Lift the battery cover. Gently remove the battery
holder from the compartment so you don’t accidentally pull
out the wires attached to the holder. Insert 6 user supplied
“AA” batteries in the holder. Refer to the diagram on the
holder to orient the batteries properly. Replace the holder
back into the battery compartment and replace the lid.
Step 14:
Make sure that the computer control panel power
switch is in the OFF position. Remove AutoStar from the
packing materials and plug it into the HBX port.
Flip the Power Switch on the computer control panel to the
ON position. The copyright message lights on AutoStar’s
LCD display.
Step 15: Press the key prompted by AutoStar to accept the
Sun warning.
Observe
Step 16:
You can now use the AutoStar Arrow keys to move
the telescope up, down, right, or left. To change the tele-
scope’s slew speed, briefly press the Speed/? key. Each
press decreases the slew speed down one level, and then
will cycle back to the fastest speed.
Step 17: Sight along the side of the telescope’s main tube
to locate an object. At first, practice during the daytime
using the AutoStar’s Arrow keys to center on objects in the
telescope’s field of view. Observe trees, mountains, signs
and so forth. Then when you’re comfortable locating objects
in this manner, try at night on the Moon, planets and stars.
Note about the Flip Barlow:
To use the built-in 2x Barlow,
rotate the the Flip Barlow control so that it is in the down
position (see diagram, left). The Flip Barlow doubles the
magnification of your eyepiece.
If you use the Flip Barlow, you will need to turn the focus
knob in a counterclockwise direction. You may have to turn
the focus knob 20 or more turns to focus with the Barlow
engaged.
Step 13: Focus insert batteries.
Step 14: Plug in handbox and turn
on computer control panel.
Step 17: Sight along the top of the
optical tube.
Note: Flip Barlow control in the
“down” position.
Flip Barlow in
down position.