NorthStar 957 User Manual

Page of 204
Page 22
957 Operator’s Manual, Rev. B
Chapter 2 - Introducing the 957
Question windows
A question window appears when the 957 needs a response 
from you. You must respond to any question window by 
pressing the ENTER key to answer yes, or the CLEAR key to 
answer no. Most of the other keys, including the function keys 
as well as the video image display, are temporarily inactive 
while the 957 displays a question window.
Introducing the 957’s special functions
The 957 has several special functions:
alarms
Tide Track display
video image display 
Using the alarms
The 957 has several alarms that automatically alert you to 
certain situations. For example, when you’re approaching a 
waypoint, the 957 lets you know by sounding a beep and 
flashing an alarm icon on the screen. The 957 offers four 
adjustable alarms, including anchor, cross-track distance, 
arrival radius, and DGPS time-out. For details, see 
”Understanding alarms” starting on page 118
.