C-Nav 1000 R4, Руководство по установке

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SYSTEM CONFIGURATION AND SETTINGS Page 28
1.
Press
MODE
key and then press function key
NAVIGATE
followed by
Position
. The Position view should be displayed, as illustrated below:
2. Verify that latitude and longitude are displayed, and that an icon in the
status bar indicates that valid position information is received. This is
indicated by one of the icons (valid uncorrected position),
(position corrected using radio beacon differential corrections),
(position corrected using external corrections) or (position corrected
using SBAS differential corrections).
To verify the quality of received GPS and radio beacon signals, the
following steps can be performed. The signal strength is measured as a
signal to noise (SNR) ratio. (The SNR is the height of the signal above the
noise floor.) The higher the SNR, the better your receiver is receiving the
signal. The optimum antenna location will be a position where your average
SNR is highest. You should turn on all equipment that you intend to use
during normal operation when locating the best position for the antenna.
3. To verify the signal strength of received GPS signals, press the function
key
Satellite Info
when in the Position view. The following view should
be displayed.
The Elevation field presents each satellite’s height in degrees above the
horizon. The Azimuth field presents the satellite’s angular horizontal
position, counted clockwise from the north. The R4 Navigation Sensor
is more precise when it receives satellites widely spread across the sky,
at various elevations.