Standard Horizon GX2400GPS, Owner'S Manual

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14.2.5 Changing the Compass Display
The compass display can be switched between “COURSE-UP” and “NORTH-
UP”. The default setting is “COURSE-UP”.
Refer to section “ 19.2 COMPASS DIRECTION ” for details.
14.3 AIS SETUP
14.3.1 CPA
This function allows you to set the CPA (Closest Point of Approach)

alarm distance.

: CPA means the positions at which two moving vessels reach their closest
possible distance.
1.
Press & hold [
]

“ AIS SETUP ”

“ CPA ”
2. Rotate the
DIAL/ENT
knob to select the distance you
want the radio to alert you of an approaching AIS
equipped vessel. You can select one from “
0.1nm
”
to “ 20nm ” (“1nm” is default).
3. Press the [ ENTER ] soft key to store the selected
setting.
4. Press the [
CLEAR
] key to return to radio operation.
14.3.2 TCPA
This function allows you to set the TCPA (Time to Closest Point of Approach)

alarm.

: Setting up a TCPA alarm sets a time point where the radio will alarm when
an AIS equipped vessel approaching is within the time selected.
1.
Press & hold [
]

“ AIS SETUP ”

“ TCPA ”
2. Rotate the DIAL/ENT knob to select the time you want
the radio to alert you of an approaching AIS equipped
vessel. The time can be set from “ 1min ” to “ 60min ”
(“10min” is default).
3. Press the [ ENTER ] soft key to store the selected
setting.
4. Press the CLEAR key to return to radio operation.