Compass - External Compass Input &
Magnetic Variation Table
The receiver will accept a magnetic compass input using
the NMEA 0183 data record of xxHDT, xxHDG, xxHDM,
xxHCC, xxHCD, xxVHW, or any of the above. “xx” refers
to the Talker Identifier as specified in the NMEA 0183
standard. The receiver will accept these data records
from any talker ID, and from any version (1.5 or higher)
of the NMEA 0183 standard.
To implement this feature, change Compass Connected
to Yes.
Identify the appropriate input port that the compass con-
nects to the receiver by using the Change softkey.
Select whether or not the receiver should give an alarm if
data is not received on the input port.
Select the compass type, either Magnetic, Gyro, or
MX575A. Only the NMEA 0183 records identified above
are accepted for the gyro input.
Magnetic:
Select the magnetic deviation method: either In Compass
- the deviation is corrected before being sent to the
receiver; or In Navigator - the deviation is corrected
by editing a deviation table (Edit Table softkey) in the
receiver.
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