Sky-Watcher SynScan V3 Hand Controller User Manual
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PART XI : ADVANCED FUNCTIONS
The SynScan hand control divides the sky into 85 small zones, and users can calibrate the
pointing error for each of these zones. The next time that the SynScan controller tries to
locate an object in the calibrated zone (or a zone nearby), it will automatically apply the re-
corded calibration data to compensate the pointing error.
This function is useful for locating faint deep sky objects, and it is also helpful to obtain con-
sistent pointing accuracy for a permanent observatory.
Here are the instructions on using the PAE function:
1.
Perform a 1-star alignment, 2-star alignment, or a 3-star alignment.
2.
Choose a celestial object in a zone of interest as reference by referring to a sky map or
planetarium software. In general, it is a rather bright star, but users can also use other
objects. Use the SynScan hand control to control the mount to point the telescope to the
reference object.
3.
Use one of the following operations to start the PAE calibration:
• Press the “
UTILITY
” shortcut key, access to sub-menu “
PAE\PAE Align
”, and then press
the
ENTER
key.
• Press and hold the
ESC
key for two seconds.
4.
The screen will display “
Center Object:
” in the first row, and display the name of the refer-
ence object in the bottom row. (If the last object is launched from a PC, then instead of the
name of the reference object, it will display “
The last target
”.) Now use the direction keys
of the hand control to center the object in the telescope’s FOV, and then press
ENTER
to
confirm. Remember to end the centering operation by pressing the
Right
and
Up
direction
keys together.
5.
Repeat
Step 2
to
5
for viewing different portions of the sky.
Note:
• Whenever the SynScan hand control locates an object, it will automatically check whether
a PAE calibration data is available, and apply the compensation accordingly. No manual
intervention is required.
• If multiply PAE calibration is performed in the same zone, the previous calibration data
will be overwritten.
• Users can access the menu “
UTILITY > PAE > Clear PAE data
” to clear all PAE calibration
data.
• The PAE calibration data will be automatically cleared after a
1-star alignment, 2-star
alignment or 3-star alignment.