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 options will be disabled ‘grayed out’ when
using an incompatible GNSS (GPS) receiver.
• 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
Differential positioning:
• Enable and disable the use of
[Differential positioning]
(SBAS) using the
toggle switch. Enabling differential positioning provides more accurate
positioning in regions covered by Satellite Based Augmentations Systems
(SBAS).
• Select
[Select SBAS]
to view a list of supported SBASs used for differential
positioning. The SBASs being used can be enabled and disabled using the
relevant check boxes
Note:
SBAS selection options will be disabled ‘grayed out’ when using an
incompatible GNSS receiver.
• 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
COG / SOG filter
Setting the COG / SOG filter according to the amount of your vessel’s
oscillation (e.g.: roll, pitch and yaw) provides more stable COG and SOG
values.
The data reported by your GNSS receiver provides an instantaneous
measure of the receiver’s speed and direction. Under certain conditions the
data can become erratic. (e.g.: a slow moving sailing vessel in rough seas will
have a high oscillations and will benefit from a High setting, whereas a power
boat that can quickly change speed and direction will have a low oscillation
and will benefit from a low settings.)
The available options are:
•
High
•
Medium (default)
•
Low
Note:
The filter does not affect your GNSS receiver’s reported position.
Internal GPS
If applicable, you can enable and disable the MFD’s internal receiver using
the toggle switch.
Disable if you do not want to use the MFD’s internal GNSS receiver as a
source for positioning data.
For troubleshooting purposes you can also
[Restart]
the active GNSS receiver.
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