Garmin GPSMAP 168 Sounder User Manual

Page 34

Reference

Status Page Options

The following options are available:

• Start/Stop Simulator— allows you put the unit in simulator mode. See the Getting Started Tour for

more on using simulator mode.

• Enable/Disable WAAS— allows you to activate or deactivate WAAS. ‘WAAS’ is an acronym for

“Wide Area Augmentation System’. You can use the WAAS capability to increase the accuracy of
the GPSMAP 168 Sounder. When enabled, the GPS receiver searches for a WAAS satellite, then
receives data that will help correct differentials in the GPS signal. When the unit is using WAAS data,
“WAAS” will be displayed in the ‘DGPS Rcvr’ ﬁ eld on the Status Page, and the receiver status will
indicate a 2D or 3D Differential Location.

Currently, the WAAS system is not fully operational and there are only two satellites in place—one

over the Paciﬁ c Ocean and one over the Atlantic Ocean. You must have a clear, unobstructed view
of the sky for the GPSMAP 168 Sounder to be able to receive a WAAS signal. Even then, at times it
may not be possible to receive a WAAS signal. For more information on the WAAS system, visit the
Federal Aviation Administration web site at (gps.faa.gov).

• Track Up/North Up— allows you to select between a north up or track up sky view display for

the Status Page only.

• Loran TD On/Off— allows you to toggle the position coordinate format between latitude/longitude

and Loran TD (Time Delays). For setup of Loran TD, see pages 83-84.

• AutoLocate— allows the receiver to locate your position automatically. This process can take up

to ﬁ ve minutes.

• Initialize Position— allows you to initialize the receiver graphically on the Map Page to initially help

the receiver acquire more quickly. See pages 4-5 for instructions on initialization.

• Set 2D Elevation— allows you to manually enter the altitude when in 2D Navigation or Simulator

mode only. Any altitude entered will be automatically calculated when the GPS is in 3D Navigation
mode.

Status Page Options

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