Meade LX200-ACF 8 inch User Manual - Page 31
GPS Alignment: GPS
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Do you want to learn how to perform the periodic error correction procedure? See PERIODIC ERROR CORRECTION, page 40. Tip: If the "ENTER to Sync" feature is accessed by mistake (holding the ENTER key for more than 2 seconds), press MODE to return to the previous screen. Important Note: The Site information is stored in the Site menu. If you move the telescope outside of a 5 miles area of your initial observing location, AutoStar II automatically determines your location when it gets a GPS Fix, and adds the new location to the Site menu. Want to learn more about adding and editing sites? See page 33. Time Zone Atlantic Eastern Central Mountain Pacific Alaska Hawaii Shift -4 Hours -5 Hours -6 Hours -7 Hours -8 Hours -9 Hours -10 Hours Table 1: Time Zone Shift. Calculations are for standard time. a Reverse L/R: Reverses the functions of the Left and Right Arrow keys for controlling the telescope's motion (i.e., the Right key moves the telescope to the left). a Reverse U/D: Reverses the functions of the Up and Down Arrow keys for controlling the telescope's motion (i.e., the Up key moves the telescope down). a Home Sensors: Turns off or on the True North and True Level sensors, if preferred, for Easy, One-Star, and Two-Star alignment. User must then manually level the telescope and point the telescope to True North during alignment. Default setting is "On". a GPS Alignment: GPS: Select "Off" to turn off the GPS function-you will be prompted to manually enter the time, date and location. Select "Start Up" to have the GPS function begin when you turn on AutoStar. Select "When Needed" to have the GPS function begin only when it's needed. For example, you have not performed the GPS fix yet and you have select Sunrise. AutoStar needs to know time, date and location to calculate Sunrise times, so the GPX fix will begin when you select press ENTER after selecting Sunrise. a Dec. PEC: Allows you to perform periodic error correction on the Dec. drive worm gear. Must be performed with a high-power reticle (eg., 9mm). a R.A. PEC: Allows you to perform periodic error correction on the R.A. drive worm gear. Must be performed with a high-power reticle (eg., 9mm). a High Precision: If High Precision is turned on, when looking for a faint celestial object (e.g., a nebula or galaxy), AutoStar II first slews to a nearby bright star and displays "ENTER to Sync". Center the star in the eyepiece, then press ENTER. At that point the telescope has a high precision alignment to that part of the sky and it then slews to the object that was originally requested. Targets: Switches between Astronomical targets and Terrestrial targets. If "Astronomical" is selected, the telescope tracking motor is activated and any object you observe will remain centered in the eyepiece. If "Terrestrial" is selected, the tracking motor is turned off. See TO TRACK AN OBJECT AUTOMATICALLY, page 19. Site provides access to several options including: a Select: Displays the currently selected observing site. Use the Scroll keys to cycle through all available sites (see ADD below). Press ENTER when the site you wish to select displays. Use this option when you move to a different geographic location. a Add: Allows you to add new observing sites to the database. Scroll through the list of Countries/States. Press ENTER when the site you wish to add displays. Then choose the desired city in the same manner. However, when the GPS signal is received, the site is normally selected automatically and the site list is updated automatically. Use of this option is not necessary and is included for the convenience of those users who may wish to enter a site manually. You may edit the name of a site using the Edit option (see below). a Delete: Deletes a stored site from the database. a Edit: Edits a selected site, including: the name, latitude, longitude, and time zone. Time Zone refers to the Greenwich Mean Time (GMT) time zone shift. Users West of Greenwich, England use "-" hours, East of Greenwich use "+" hours. For the United States, look up the time zone shift in Table 1. Note: AutoStar II compensates for daylight savings time, if selected. See SETUP MENU: DAYLIGHT SAVING, page 29. Owner Info: Accesses the owner information menu, including: a Name: Users may enter both their first and last names using the Up and Down Arrow keys to cycle through the alphabet. Use the Right and Left Arrow keys to move through the text. Press ENTER when the entry is complete. a Address: Use the Up and Down Arrow keys to enter your street address, city, state, and zip code. Press ENTER when the entry is complete. Clone: Uploads information from one AutoStar II handbox to another. Three options are available: a Catalogs: Sends only user-defined object information, such as new satellite orbits or comet data to another AutoStar II handbox. - 31 -