Celestron CGEM DX 1400 HD Computerized Telescope CGEM DX Mount Manual - Page 18

hand control database to find the coordinates of a celestial object for a future or past dates you would need to turn the RTC off in order to manually enter a time other than the present. Periodic Error Correction (PEC) - PEC is designed to improve photographic quality by reducing the amplitude of the worm gear errors and improving the tracking accuracy of the drive. This feature is for advanced astrophotography and is used when your telescope is accurately polar aligned. For more information on using PEC, see the section on "Astrophotography." UTILITIES CALIBRATE MOUNT HOME POSTION LIGHTS CONTROL FACTORY SETTINGS VERSION GET AXI S POSITI ON GOTO AXIS POSITION HIBERNATE SUN MENU SCROLLING MENU SET MOUNT POSITION TURN ON/OFF GPS TURN ON/OFF RTC PEC GOTO RA SWITCH GOTO SET KEYPAD LEVEL DISPLAY LEVEL RECORD PLAYBACK MENU 16