User manual

33
Go to Main Menu .
➔
Information
Select GPS Status.
2
1
You can view the dynamic location information
received from satellite such as signal strength,
compass (direction information), latitude/longitude,
approximate altitude, and speed. This feature
allows you to view GPS satellite signal information.
An explanation of the messages is shown below.
“Locating GPS Satellites”:
Blackbird
searches the sky looking for GPS satellites.
“Acquiring GPS Signal”: Blackbird
acquires positioning information transmitted
from 1 to 3 tracked satellites while search-
ing for more satellites (minimum 4 needed).
“Fixing GPS Position”: Blackbird
requires continuous signals from 4 or more
tracked satellites (for 30 seconds) in order
to accurately fix your position.
“Temporary Poor GPS Coverage”:
Thunderstorms, dense foliage or surround-
ing tall buildings may cause temporary loss
of position fix (acceptable if under 30 sec-
onds).
“Poor GPS Signal, Lost Position Fix”:
You may have entered an area where con-
sistently poor GPS signal (lasting 30 sec-
onds or more) makes it impossible to
maintain a position fix.
“No Line of Sight, Lost GPS Tracking”:
You are in an area where line of sight to
GPS satellites has been blocked.
Go to Main Menu .
➔
Information
Select System Information.
2
1
You can check software application, database
version, and other information in this screen.
Make a note of this information and refer to it
whenever you communicate with Alpine Tech
Support or your Alpine authorized dealer.
■ Viewing GPS Status
■ Viewing System Information
The following messages are displayed while the GPS receiver is tracking satellites:
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