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18 GPS 152H Owner’s Manual
Settings
DOP (Dilution of Precision)—displays DOP, which is an
indication of satellite geometry quality measured on a scale of
one to ten. Lower numbers indicate higher quality signals.
DGPS SNR—displays the SNR when the unit is receiving a
DGPS signal. The SNR range is 0dB to 30dB, with 30dB being
the best.
WAAS (Wide Area Augmentation System) can provide more-
accurate GPS position information in North America. However,
when using WAAS, the device takes longer to acquire satellites.
To disable WAAS:
1. From any Main page, press Menu twice and highlight GPS.
2. Press Menu, and select Disable WAAS.
When your unit is turned on, it starts the search for your location
based on where you were when it was turned off. AutoLocate is used
by the GPS 152H to nd your location when the unit does not know
your previous location.
To use AutoLocate to nd your location:
1. From any Main page, press Menu twice and highlight GPS.
2. Press Menu, and select AutoLocate.
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You can manually enter your altitude when in 2D navigation
or simulator mode. Any altitude entered will be automatically
calculated when the unit is in 3D navigation mode.
To set 2D altitude:
1. From any Main page, press Menu twice and highlight GPS.
2. Press Menu, and select 2D Altitude.
Using the Tide Tab
From any Main page, press Menu twice and highlight Tide.
The Tide tab shows a chart that displays tide station information
in a 24 hour span, starting at midnight station time. You can select
different dates.