Instruction manual

72
maximum value before 90º then start counting down again. The maximum value is the position you should use for polar
aligning. You will also notice that when you move the telescope in altitude, the azimuth display will change slightly. This
is also due to the computer compensating for the mechanical characteristics of the telescope.
Pointing
GO TO Command
This is the command that tells the telescope to slew to an object. To use this command, the telescope needs to be
previously aligned.
BUTTON or ACTION
NOTES DISPLAY
Start at the ALIGN menu. MENU
A
LIGN
Press DOWN twice. Scroll to the CATALOG menu. Here
you can find the object you want to
look at.
MENU
C
ATALOG
Press ENTER Enter into the CATALOG menu. NAMED
S
TAR
Press UP Scroll up to the NAMED OBJECT
catalog.
NAMED
O
BJECT
Press ENTER Enter into the NAMED OBJECT
catalog.
0043+413
A
NDROMED
Press ENTER While the message scrolls across the
bottom, you are at GO TO.
G
O TO
Scrolling Message
Press ENTER while display reads GO TO. The telescope slews to Andromeda
Galaxy.
0043+413
A
NDROMED
Press MENU Return to the main menu. MENU
C
ATALOG
Press UP Scroll to the GO TO menu. MENU
G
O TO
Press ENTER Enter into the GO TO menu. Notice
that you are still in the NAMED
OBJECT CATALOG and last object
is displayed.
A
UTO
ANDROMED
Press DOWN Choose the MANUAL option.
M
ANUAL
ANDROMED
Press ENTER Enter into the MANUAL option. 0º0 0º0
A
NDROMED
Press DOWN until you reach PINWHEEL. Scroll down the list of named objects. 12! 5$2
P
INWHEEL
Press ENTER two times. The telescope will slew to the object. 0º0 0º0
P
INWHEEL
Increasing Pointing Accuracy using Enhanced Encoder Resolution - EER
The Ultima 2000 has optical encoders on both axes. The resolution of each encoder is 2.5 arc minutes. Using the
enhanced encoder resolution gives the telescope eight times better resolution, approximately 19 arc seconds. This is the
maximum theoretical pointing accuracy. In order to use EER, you must center alignment objects with the tracking motors.
The blinking light on the drive base indicates what state the resolution is in. Blinking about once a second means the
telescope is in standard resolution mode, 2.5 arc minutes. Blinking twice a second means one of the axes is in EER When
both axes are in EER, the light stays on. This is the goal. Here is a demonstration you can try to get EER activated.