Raymarine LIGHTHOUSE 4, Operation Instructions Manual

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GNSS Constellations:
The GPS constellation (USA) is always enabled and cannot be disabled. The
Galileo constellation can be enabled along with one other constellation.
BeiDou and GLONASS cannot be enabled at the same time.
The GNSSs available are:
• BeiDou (China)
• Galileo (EU)
• GLONASS (Russia)
Note:
GNSS constellation selection is only available when using a compatible
GNSS (GPS) receiver.
Not all MFD and GNSS receiver variants support
the same range of constellations:
• For a list of compatible GNSS receivers refer to:
p.86 — GNSS constellation selection compatible receivers
• For the settings available on incompatible receivers refer to:
GNSS settings for incompatible GNSS receivers
Satellite based augmentation systems (SBAS)
Satellite based augmentation systems (SBAS) are systems that are used to
complement existing GNSS by providing differential corrections that improve
GNSS performance, including accuracy, availability and reliability.
The image below shows approximate coverage of the SBASs available on
the MFD:
1. ALCOMSAT (Algeria)
2. AUS-NZ (Australia / New Zealand)
3. BDSBAS (China)
4. EGNOS (Europe)
5. GAGAN (India)
6. KAAS (Korea)
7. MSAS (Japan)
8. NSAS (Nigeria)
9. SDCM (Russia)
10. WAAS (USA)
11. QZSS (JAPAN)
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