SynScan V2 Instruction Manual page 12

PEC Training
Perform the accurate Polar Alignment method (see the HEQ5/EQ6 manual).
1.
Slew or manually point the telescope to a star with smaller DEC coordinate. This object will be
2.
used as the guide star.
Activate Sidereal Tracking from the Setup Menu (see Setup Functions). Once the tracking has
3.
started, press ESC to go back to the Setup Menu.
4. Rotate the reticle eyepiece until one set of the lines becomes parallel to (or matches) the R.A.
movement of the telescope (see step 2 to 4 of the Cone Error Calibration for more information on
how this is done.)
5. Move the guide star back to the center of the eyepiece view using the direction keys.
On the hand control, select PEC Training in the Utility Functions and press ENTER.
6.
Utility Functions can be easily accessed by pressing the UTILITY quick reference hotkey on
the keypad.
7. Select the R.A. guide speed for the PEC training.
8. The SynScan
indicating that the recording has begun.
9. Using the LEFT or RIGHT direction key only, move the telescope so the guide star remains at
the center of the eyepiece view (Fig.r, s). Repeat whenever necessary.
Fig.r
The Guide star drifts
away from the center
10.
For 8 minutes (10 minutes and 30 seconds for HEQ5), the EQ6 SynScan
records the manual guiding actions in order to characterize the periodic errors. Pressing ESC
will stop the recording immediately and exit from the PEC training function.
Guiding actions are recorded even when the PEC training is stopped midway. In this case, the
PEC+Sidereal tracking will not be accurate until a full cycle of the PEC training is performed.
11. The SynScan
any key to exit from the PEC training.
Play back the PEC record
PEC tracking can be activated under the Setup Menu or pressing the SETUP quick reference hotkey on the
keypad when needed. In the Setup Menu, choose Set Tracking, then PEC+Sidereal. SynScan
the corrections you made during the PEC training cycle and start tracking with periodic error compensated.
The SynScan
mode is selected. If the power is turned off while the SynScan
mode, the hand control loses synchronization with the R.A. worm gear and the PEC
Training will have to be performed again when the power is turned back on. To avoid this,
be sure to return the telescope to its home position by selecting PARK SCOPE under the
UTILITY FUNCTIONS before turning off the power.
hand control will display the current time once the guide speed is selected,
TM
R.A.
will beep and display "Record completed" when the training time is up. Press
TM
will continue to track in the PEC+Sidereal mode until another tracking
TM
Fig.s
Adjust the telescope to move the
guide star back to the center
12
R.A.
hand control
TM
will play back
TM
is under the PEC+Sidereal
TM