Garmin GPSMAP 175 - Manual (Page 28)

A. The status bar at the
bottom of the page
displays important
status, alarm,
battery level, and
map scale
information. It also
provides on-screen
user and message
prompts.
B. The status bar will display an anchor symbol or ‘PRX’ icon whenever the anchor
drag alarm or proximity alarm has been triggered.
STATUS PAGE
Receiver Status
Receiver status is indicated at the top of the page, with the current
estimated position error (EPE), dilution of precision (DOP), and battery
level to the left of the sky view. DOP measures satellite geometry quality on a
scale of one to ten (the lower the number the better). EPE uses DOP and other
factors to calculate a horizontal position error in feet or meters. Your GPSMAP
175 shows battery strength in two ways (see page 23): a battery gauge located
below the DOP measurement and a battery icon located on the status bar. Both
methods show continuous battery level updates when operating on battery
power. When using external power, the battery gauge and icon are not shown.
The status field will show one of the following conditions:
• Searching the Sky— the receiver is looking for any satellites.
• AutoLocate— the receiver is looking for any satellite whose almanac has
been collected. This process can take up to five minutes.
• Acquiring Satellites— the receiver is looking for and collecting data
from satellites visible at its last known or initialized position in order to
calculate a fix.
• 2D Navigation— at least three satellites with good geometry have been
acquired and a 2D position fix (latitude and longitude) is being
calculated. ‘2D Differential Navigation’ will appear when you are
receiving DGPS corrections in 2D mode.
• 3D Navigation— at least four satellites have been acquired, and your
position is now being calculated in latitude, longitude and altitude. ‘3D
Differential Navigation’ will appear when you are receiving DGPS
corrections in 3D mode.
• Poor GPS Coverage— the receiver isn’t tracking enough satellites for a
2D or 3D fix.
• Receiver Not Usable— the receiver is unusable, possibly due to
incorrect initialization or abnormal satellite conditions. Turn the unit off
and back on to reset.
• Simulating Navigation— the receiver is in simulator mode.
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175 Manual 7/31/98 3:56 PM Page 24