Vector Sensor Reference Manual 140
Radiobeacon Coverage
Figure C-7 shows the approximate radiobeacon coverage throughout the world. In this figure,
light shaded regions note current coverage, with beacon stations symbolized as white circles.
Figure C-7 World DGPS Radiobeacon Coverage
The world beacon networks continue to expand. For more current coverage, consult the CSI
Wireless Web site at:
www.csi-wireless.com.
DGPS Service Comparison
As the Vector Sensor offers the use two internal differential services, questions have been raised
in regards to which correction source to use when more than one is available. Depending on your
local legislation and vessel size, you may be required to use beacon corrections exclusively when
approaching harbors or navigating in specific waterways. It is your responsibility to know what
these regulations are and if you need to comply with them. By default, the Vector Sensor uses
SBAS corrections.
This second provides a brief comparison of beacon and SBAS services in the event that you are
able to choose which service that you wish to use.
Beacon signals are not affected by a line of sight. In situations where there are tall obstacles that
may block the line of sight SBAS, such as buildings, bridges, other vessels, etc. However, the value
of our COAST technology is that outages of the DGPS signal are less of an influence on
performance. This improves the robustness of using a line of sight signal in areas of potential
blockage. If robustness to signal acquisition due to line of sight is considered a significant issue,
beacon DGPS should be considered in replace of SBAS services.
To Next Page
Loading...
Need help?
General
