iOptron MiniTower Pro Benutzerhandbuch

 
 

20

Firmware updating using iOptron 
Downloader through USB port on hand 
controller. (Refer to Appendix E.) 

Reserved for future products. 

 Select hand controller language. 

This function is used for aligning the 
telescope. In addition to “Easy One Star 
Align,” the system also provides “One Star 
Align” and “Two Star Align” for Alt/Azi 
mount.  “Three Star Align” is only supported 
by EQ mode. 

From the main menu select “Align”. Select 
“One Star Align”. Use ▲ and ▼ buttons to 
select a star and press ENTER. A list of 
align planets or stars that are above the 
horizon is computed based on your local 
time and location. Use arrow buttons to 
move the telescope and center the star in 
your eyepiece. You can use the number 
buttons to change the slew speed.  

Press ENTER when finished. If your setup 
is leveled well, one star alignment should be 
sufficient for good GOTO accuracy. To 
increase the accuracy you may choose to 
do two star alignment. 

 Two star alignment will increase the GOTO 
accuracy of the mount. It is suggested to do 
two star alignment after one star alignment. 
Two star alignment requires a wider view of 
the sky, since the two align stars need to be 
far apart. Select “Two Star Align” in the 
Align menu. When you finish the first star, 
the system will prompt you to choose the 

second star. If the star you choose is too 
close to the first one, the system will let you 
choose another one. When you are aligned 
with the second star, two star alignment is 
finished. You can reject the suggested star 
if it is blocked by the tree or behind the 
house.  

“Two Star Align” results will be overridden if 
“One Star Align” or “Sync. to Target” is 
performed after “Two Star Align.” 

 

It will increase the accuracy even higher 
and requires an even wider view of the sky. 
This basically asks you to choose a third 
star to align after two-star align. Three star 
alignment is not available for Alt/Azi mode. 

This only works for EQ mode. This displays 
the celestial pole point error. Point error is 
zero when you power on the mount (unless 
you “Park Telescope” before powering off. 

 This command tests the backlashes in both 
R.A. and DEC. The saved numbers will 
show in “Set Anti-backlash” menu. 
However, if no high accuracy is needed or 
your equatorial mount is not a high accuracy 
unit (i.e. the worm gear has different 
clearance in different positions) you can 
omit this procedure.  

This command only works for EQ mode.  

This shows Polaris position. 

 

Periodic Error Correction (PEC) is not 
supported in Alt/Azi mode.