Lighthouse Raymarine gS 195, Installation And Operation Instruction Manual

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including satellite geometry, system errors in
the data transmission and system errors in the
receiver. A higher figure signifies a greater
positional error. A typical receiver has an accuracy
of between 5 and 15 m. As an example, assuming
a receiver error of 5 m, an HDOP of 2 would
represent an error of approximately 15 m. Please
remember that even a very low HDOP figure is
NO guarantee that your receiver is providing an
accurate position. If in doubt, check the displayed
vessel position in the Chart application against
your actual proximity to a known charted object.
• Estimated Horizontal Position Error (EHPE)
— EHPE is a measure of the estimated error of
a position fix in the horizontal plane. The value
displayed indicates that your position is within a
circle radius of the stated size 50% of the time.
• Fix status — indicates the actual mode the
receiver is reporting:
– Fix — Satellite fix has been acquired.
– No Fix — No satellite fix can be acquired.
– D Fix — A differential beacon fix has been
acquired.
– SD Fix — A differential satellite fix has been
acquired.
• Position — Displays the latitude and longitude
position of your receiver.
• Date / Time — Displays the current date and time
generated by the position fix in UTC format .
• Mode — Identifies wether the receiver is working
in differential mode or non-differential mode.
• Datum — The receiver's datum setting affects
the accuracy of the vessel position information
displayed in the Chart application. In order for your
receiver and MFD to correlate accurately with your
paper charts, they must be using the same datum.
7.3 Raymarine GPS / GNSS receiver
compatibility
Raymarine GPS receivers and GNSS
(GPS/GLONASS) receivers are compatible
with the following GNSS and SBAS.
Status /
Type
Name Compatible receivers
Oper-
ational
GNSS GPS All internal and external Raymarine
GPS receivers and GNSS receivers
Oper-
ational
GNSS GLON-
ASS a9x and a12x internal GNSS
receiver
Planned
GNSS COM-
PASS /
Beidou–2 * a9x and a12x internal GNSS
receiver
Planned
GNSS Galileo * a9x and a12x internal GNSS
receiver
Oper-
ational
SBAS WAAS All internal and external Raymarine
GPS receivers and GNSS receivers
Oper-
ational
SBAS EGNOS All internal and external Raymarine
GPS receivers and GNSS receivers
Oper-
ational
SBAS MSAS
All internal and external Raymarine
GPS receivers and GNSS receivers
Oper-
ational
SBAS GAGAN All internal and external Raymarine
GPS receivers and GNSS receivers
Planned
SBAS QZSS * a9x and a12x internal GNSS
receiver
Note: * Not currently operational but will be
supported via software update in the future.
System checks
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