Set Slew Rate
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Select the slew rate in the drop-down combo box and click "Set" to immediately change the Slew Rate. Otherwise the slew rate will be changed the next time the driver is asked to slew the mount.
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Set Guide (and PulseGuide) Rate
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Select the guide rate in the drop-down combo box and click "Set" to immediately change the Guide Rate.
For best results when autoguiding, Astro-Physics recommends using a guide rate of 1X. Slower rates are for manual guiding.
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Set PEM
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Select the option to enable or disable PEM (Periodic error correction) and click Set to apply.
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Set RA Backlash
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NOTE: This field will not be shown if you have a GTOCP4, which always defaults to a backlash of 0.
Enter the Right Ascension backlash value in arc-seconds and click Set to apply. Astro-Physics recommends to leave this value=0.
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Set Dec Backlash
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NOTE: This field will not be shown if you have a GTOCP4, which always defaults to a backlash of 0.
Enter the Declination backlash value in arc-seconds and click Set to apply.
For best results when autoguiding, Astro-Physics recommends using a backlash setting of 0. Backlash compensation is most appropriate for manual guiding and for visual use.
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Re-Sync Mount To PC Time
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Clicking this button will resend the PC's time and time zone (and date if a GTOCP3/CP4) to the mount.
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Use RCAL for Sync's
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The ASCOM API has a several "Sync" functions which allow a client application to synchronize client-supplied RA/Dec or Alt/Az coordinates to the telescope's current position.
Astro-Physics GTO mounts have two low-level commands for coordinate synchronization: SYNC and RCAL. RCAL is the same as SYNC except that RCAL can be done anywhere on any position with the scope in any position, on top or underneath the mount.
"Sync" is only for setting up the scope versus the mount (i.e.whether the scope is set on top or underneath the mount - underneath being wrong). For the AP mounts, always think RCAL, not SYNC, when you want to redefine the position of the scope with regard to the sky.
IMPORTANT: Astro-Physics strongly recommends that you keep the Use RCAL for Syncs option checked. Failure to do so can result in mount disorientation and possible equipment damage!
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Enable Debug Log
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When this option is checked debug logging is enabled. Whenever the driver hand box window pops up so will the debug log window. Closing the debug log window does not stop logging. To disable logging uncheck this option.
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Logs...
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Clicking this button will open an instance of Windows Explorer to the directory where log files are kept.
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Enable Mount Tracking on Unpark
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By default ASCOM drivers are supposed to turn off tracking after unparking. Checking this option changes that behavior.
Please note that some clients will initiate tracking even though this box is left unchecked.
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Windows Priority
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Sets the Windows priority at which the drive will run. "Above Normal" is recommended.
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RA Polar Scope Tool
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Clicking this button will open the A-0P Right Angle Polar Alignment tool.
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Expand window to show all controls
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Checking this option will simultaneously show all pages of the driver.
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Zipper...
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Opens the log file zipper utility.
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Synchronous PulseGuide calls
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If checked when a client ASCOM application calls the ASCOM PulseGuide() function the driver will not return until the operation completes.
The default is for this function to be unchecked. In that case PulseGuide calls happen Asynchronously so overlapping RA and Dec PulseGuide calls can be made.
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