Street Atlas USA® 2009 User Guide
346
Sky View on a Pocket PC
The Sky View diagram displays satellites being tracked by number and position in the sky
relative to your current position.
To View the Sky View Diagram
Use the following steps to display the Sky View diagram.
1.
Tap GPS and then tap Sky View.
The Sky View diagram displays with satellite symbols representing satellites being
tracked by your GPS receiver.
Note A Satellite Key for information on satellite status displays below the sky view
diagram.
2.
Tap ok to close the Sky View diagram.
The map view screen displays.
Channel View on a Pocket PC
When connected to a GPS receiver, each satellite currently visible in the sky is listed by:
•
Satellite number (Sat)
•
Elevation degrees to horizon (El)
•
Azimuth (Az)
•
Signal-to-noise ratio (SNR)
•
Status (N=navigation, E=ephemeris data, T=tracked, and D=differential mode for
WAAS)
Note The PDOP (Position Dilution of Precision), HDOP (Horizontal Dilution of Precision), and
EHPE (Estimated Horizontal Position Error) values display at the bottom of the GPS Channel
Info screen. Low PDOP, HDOP, and EHPE values indicate a higher probability of accuracy in
position. The PDOP and HDOP values should be 0-10. The EHPE value should be 0-125
meters. Not all values are available on all GPS receivers.
To View the GPS Channel View Screen
Use the following steps to view the GPS Channel View Screen.
1.
Tap GPS and then tap Channel View.
The GPS Channel Info screen displays information on the satellites being tracked by
your GPS receiver. The status of the GPS connection displays in the upper-right
corner of the screen just below the ok button in the title bar.
2.
Tap ok to exit the GPS Channel Info screen.
The map view screen displays.
Sun/Moon on a Pocket PC
Change settings to view sun/moon status at different dates or in different time zones
anywhere in the world. View the following information in the Sun/Moon screen for your
current location in Street Atlas USA
®
Handheld.
•
Sunrise/set and moonrise/set times (displayed in a 24-hour clock, where 12 is noon
and 24 is midnight)
•
Moon phase
•
Percentage of moon illumination
Summary of Contents for Street Atlas USA 2009
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