7
GUIDE
SET
GO
SLOW
FAST
1
2
3
4
6
5
CRUISE
TRAC
SET LAT
Fig.i
S
etting the local latitude for accurate tracking
Setting the local latitude is not required to track an astronomical object but it greatly
enhances the tracking accuracy. It requires that you know the latitude of the
observing site. To set the latitude for the Northern Hemisphere, use the directional
buttons to adjust the telescope tube until the latitude scale reads 0. Turn off the
power and turn it back on again. Now use the hand control to move the telescope
tube until the latitude scale reads your local latitude. Press the "Fast" and "Slow"
buttons simultaneously to store the local latitude into the system (Fig.i).
For Southern Hemisphere, use the direction buttons to adjust the telescope tube
until the latitude scale reads your local latitude. Turn off the power and turn it back
on again. Now use the directional buttons to move the telescope tube until the
latitude scale reads 0. Press "Fast" and "Slow" buttons simultaneously to store the
local latitude into the system (Fig.i).
Setting the local latitude only needs to be done once. The information will be stored
in the hand control even when the power is turned off.
Use the same or key to end adjusting scale reading to 0 degree and setting your local
latitude. This will help eliminate the influence of mechanical backlash. For example, if key is
the last key that you used to set the scale to 0 degree, you should also use key as the last
key for setting the scale reading to your local latitude.
H
and Control Operation
GUIDE
SET
GO
SLOW
FAST
1
2
3
4
6
5
CRUISE
TRAC
SET LAT
Fig.j
GUIDE
SET
GO
SLOW
FAST
1
2
3
4
6
5
CRUISE
TRAC
SET LAT
Fig.k
The basic movements of the telescope mount are directional movement,
slewing, and tracking. The tracking rate is sidereal rate.
THE DIRECTIONAL KEYS (Fig.j)
allow for the movement direction that you
want the telescope to go. If two opposite buttons are pressed at the same time,
only the button first pressed will respond. AZ (azimuth) and ALT (altitude) axis
can be adjusted at the same time.
THE SLEWING SPEED (Fig.k)
can be set from the three available options by
pressing the correspondent key on the hand control:
Guide (defult) -- slow speed used for centering objects in the eyepiece.
Slow -- medium speed used for finding and moving objects in the finderscope.
Fast -- fast speed used for quick movement in the sky.
The actual slewing speeds are different depending on whether tracking is "on"
or "off". See the chart below for details. (1x = Sidereal rate)
When a command is successfully entered, all the LEDs will light up. The
LEDs will not go off until all key buttons are released. If there is any type
of communication error between the hand control and the motor
Assembly, all the LEDs will flash.
Slewing Speeds Guide Slow Fast
Tracking "on" 1x 4x 8x
Tracking "on" 32x 64x 800x
In standby mode, the LED will respectively indicate the current slewing speed.
