Frequently Asked Questions

Please use the category links below to quickly find answers to common questions regarding the Wheeler Sunpredictor.

Categories
Installation Instructions
Back To Top

How do I install Wheeler Sunpredictor?

Please visit our Download and Install page and follow the prompts to obtain detailed installation instructions.

How do I uninstall Wheeler Sunpredictor?

If you installed via ActiveSync:

  1. Ensure your Pocket PC or Pocket PC phone device is connected via ActiveSync to your computer
  2. On your computer select "Start/Control Panel/Add or Remove Programs"
  3. Select Wheeler Sunpredictor from the list and select the "Remove" button
  4. Select "Yes" to confirm the removal
  5. The ActiveSync "Add/Remove Programs" dialog will appear, select Wheeler Sunpredictor from the list of installed applications
  6. Select the "Remove" button to uninstall from both your computer and your device
  7. On your device a dialog will appear asking if you wish to keep your Wheeler Sunpredictor "Locations" database
  8. Select "Yes" to keep any saved locations, or "No" to remove them from your device

If you installed via Missing Sync, PocketMac or from a storage card:

  1. On your device tap "Start > Settings"
  2. On the dialog that appears, tap the "System" tab
  3. Tap "Remove Programs"
  4. Select "Wheeler Sunpredictor" and tap the "Remove" button
  5. A dialog will appear asking if you wish to keep your Wheeler Sunpredictor "Locations" database
  6. Select "Yes" to keep any saved locations, or "No" to remove them from your device
Licensing Procedures
Back To Top

How do I get a free trial license?

Please visit our Free Trial page and follow the prompts to obtain a free, fully functional, 14 day trial license of the Wheeler Sunpredictor.

My trial license has expired, what do I do now?

Please visit our Purchase page to obtain an unrestricted license for the Wheeler Sunpredictor application.

My license key or code is invalid, what do I do?

Ensure you have entered the license key or code correctly. The only values used in the license code and license key are numbers 0 to 9, and letters A to F.

If after you have checked for transcription errors, you still receive an invalid license message, then please contact us

Hardware Questions
Back To Top

What devices will Wheeler Sunpredictor run on?

The Wheeler Sunpredictor is compatible with any Pocket PC or Pocket PC Phone running the Microsoft Windows Mobile operating system, please visit our Hardware Info page for more information.

What types of GPS are supported?

Wheeler Sunpredictor works with GPS receivers that output standard NMEA sentences. Please visit our Hardware Info page for more information.

How do I configure my GPS?

Please visit our How To Use page to obtain instructions on how to configure and use your GPS.

General Information
Back To Top

How do I create a new location?

Please visit our How To Use page to obtain detailed, step-by-step instructions on how to create a new location.

How do I backup my locations?

Any new locations that you create and save through the Wheeler Sunpredictor application are saved in a database on your device.

To backup the database, copy the file "Locations.xml" from the Wheeler Sunpredictor installation folder (default "\Program Files\Sunpredictor") to a storage card or onto your desktop computer.

If you need to restore your saved locations, then simply copy "Locations.xml" back into the above folder.

What type of bearing does the Wheeler Sunpredictor display?

The Wheeler Sunpredictor application automatically adjusts the bearings you are shown for magnetic declination. Therefore the bearings shown on the "Prediction" tab of the application correspond to compass bearings.

I am shown a warning message that compass bearings cannot be computed, what does this mean?

The Wheeler Sunpredictor application automatically computes magnetic declination using the IGRF magnetic field model, as agreed in January 2005 by the IAGA Working Group V-MOD.

The IGRF magnetic field model allows us to apply valid magnetic declination values from 2005 to 2010. Values can be computed up to 2015 but with a reduced accuracy. Magnetic declination values for dates before 2005 and after 2015 can not be computed.

If you are shown a warning message that compass bearing cannot be computed, this means that you have selected a date that is either before 2005 or after 2015. The bearing that is given to you on the "Prediction" tab of the Wheeler Sunpredictor application will be a True North bearing, which means that it will not be corrected for magnetic declination and therefore will not correspond to your compass bearing.

Do I need to set daylight savings?

No, if you have selected the correct time zone for your location, then the Wheeler Sunpredictor should automatically apply daylight savings if required.

If daylight savings is being applied for your location, a small sun graphic, as well as the text "DST" will appear next to the time zone and below the elevation control on the right hand side of the "Prediction" tab.