Si-tex SNS-1100, User Manual, Page: 91 / 114

User Manual -
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• WAAS = Wide Area Augmentation System
The Federal Aviation Administration (FAA), in cooperation with other DOT organizations and
DOD, is augmenting the GPS/SPS with a satellite-based augmentation system, the WAAS. It
will provide a signal-in-space to WAAS users to support en route through precision approach
navigation. After achieving initial operational capability, the WAAS will then be incrementally
improved over the next years to expand the area of coverage, increase the availability of
precision approaches, increase signal redundancy and reduce operational restrictions.
• Waypoint
Any point to which one intends to navigate. A sequence of Waypoints makes up a Route
plan.
• WGS-84 = World Geodetic System 1984
Coordinates System or Datum developed by the Defence Mapping Agency (DMA). It is the
default geodetic Datum used by the chart plotter and the GPS.
• Zoom-In
Shows more detail in a smaller area.
• Zoom-Out
Operates similarly to zoom -in, but in the reverse, showing a wider but less detailed view.
• XTE = Cross Track Error
Distance from the ship’s present position to the closest point on a line between the origin and
destinations Waypoints of the navigatio
• Flush mounting kit
• Cutting templ