Operation Manual

Robertson AP300X Autopilot
42 22081814H
If the system includes a Robertson gyrocompass, the AP300DLX does
not use the MAGVAR value when Gyro is selected as the current
heading sensor. COG and bearings will then be displayed as TRUE
values, designated by the letter "T".
To view the current MAGVAR calculation method and MAGVAR
value:
PLOT INSTR
MOB INFO NAV
MAIN
ROUTE
WAYPT
GOTO
SETUP
ESC
MAIN
ENTER
Use or  to select "Magnetic Variation" and press ENTER.
Leave the menu by pressing ESC or MAIN.
Magnetic Variation
OFF
ESC
MAIN AUTO
MAN
AUTO
14
West
Magnetic variation value
MAGVAR calculation mode:
AUTO
MANUAL
Select manual
Magnetic variation
Screen
Sets AUTOMATIC
MAGVAR "ON"
(Recommended
setting)
Sets MAGVAR
"OFF"
Manual input of MAGVAR
Note ! The manual input of MAGVAR is optional and only good for a limited
navigation area. As you travel to a new area (greater than 50 miles), it may
be necessary to reset the MAGVAR value. Refer to the nautical chart for
your cruising area to determine the correct MAGVAR value. Failure to
input correct MAGVAR will result in incorrect waypoint bearing
calculations.
To input or change the MAGVAR from the main menu:
PLOT INSTR
MO B INFO NAV
MAIN
ROUTE
WAYPT
GOTO
SETUP
ESC
MAIN
ENTER
OFF
ESC MAN MAIN AUTO