NorthStar 961 Reference Manual page 322

Chapter 13 - Customizing Setup Functions
Page 13-52
7. Use the KEYPAD to carefully enter the permit, using the
LEFT ARROW key and RIGHT ARROW key as necessary.
Where the + signs are required, you can scroll across
them with the ARROW keys or use the '+' SIGN key to
enter them.
8. Press the OK key (if you made a mistake or entered an
incorrect permit, you will hear a beep and be prompted to
try again).
The CHARTS ON DISK screen is now displayed with this
chart marked "load."
9. To load charts, see "Loading HCRF charts" starting on
page 13-45, beginning with step #6 (pressing the LOAD
CHARTS key) and following each step as necessary.
961/962 Operations and Reference Manual, Rev. A
Enter navigator permit dialog box