A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Herman Dekker
Date: 2020 Apr 9, 10:50 -0700
Starpath has one update for the TI-89 calculator Celestial Navigation Program.
It is only the new Geomagnetic file for the years 2020-2025.
If you do not update and want to calculate the Local Magnetic Variation
after 1-1-2020 you get a warning that you need one update.
It can be downloaded from: https://www.starpilotllc.com/downloads.htm
On that page you can also get info how to install the program.
You need complete remove the program from the calculator and then
install the new program.
Be sure you have the "Programkey" value written down, before deleting, otherwise
you cannot use the program anymore.
To find your key from the Main Program screen. **Starpilot"
Choose menu item:
1 Settings (You see now ** Settings 1**) then choose
1 More settings (You see now ** Settings 2**) then choose again
1 More settings (You see now ** Settings 3**) then choose again
1 More settings (You see now ** Settings 4**) then choose
6 Support Info there you see your key value. (4 digits) write it down.
Hope this is helpfull for TI-89 owners.
HermanD 52°N 04°E