Selecting Output Data Format - Furuno PG-500 Operator's Manual

1. OPERATION
1.5 Selecting Output Data
Format
The sensor can output true or magnetic
heading. The default setting is magnetic, in
AD-10 format.
CAUTION
Turn off the autopilot before selecting
output data format.
The autopilot may turn the rudder suddenly.
To output true heading, do the following:
1. Connect Furuno GPS Navigator which
can output data sentence RMC or VTG.
2. Set up magnetic variation (manual or
automatic) at the GPS Navigator.
When RMC or VTG is input to the sensor, the
TRUE LED lights and then true heading is
output to other equipment.
4. To return to magnetic heading output,
disconnect the GPS Navigator.
Note 1: If the TRUE LED does not light
within 90 seconds, check the
navigator setting and cable
connection.
Note 2: If the sensor stops receiving
magnetic variation data while
outputting true heading, the TRUE
LED stops lighting and blinks. The
last-used variation data is used.
Note 3: Magnetic variation cannot be
corrected manually at the sensor.
Therefore, if you desire true heading
output but do not have a navigation
aid, you may enter appropriate
variation as shown in 3.4 Heading
Alignment on page 11. HDM
sentence, however, cannot be
changed to true heading. For HDG
sentence, it can be changed to true
heading at the equipment connected,
by using the magnetic heading and
magnetic variation data in the
sentence.
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