Icom MR-1220 Series Instruction Manual page 46

8
MENU SCREEN
Menu items
■ System (Continued)
Variation
Selects the difference setting between True North and
Magnetic North.
• Auto: Automatically revises the magnetic
variations. Until an effective variation is
received, 0° is used for difference between
true North and Magnetic North. When
an effective variation has been received,
the received data is used. The MR-1220
memorize the data until you turn OFF the
power.
• Manual: Manually revises the magnetic variation.
Set the value in "Manual Variation" below
for the difference between True North and
Magnetic North.
Manual Variation
Sets the difference value for the Manual Variation to
between 180.0°W (West) and 180°E (East).
Bearing Reference
Sets the direction basis for the EBL (Electronic
Bearing Line) or the cursor.
• True: True or Magnetic North
• 360°R: The vessel's bow. Described by the
clockwise direction.
• PT/SB: The vessel's bow. Described between
P180°R and S180°R.
Input Speed Selection
Selects the speed input of the vessel from "SOG" or
"Manual." If you select "Manual," enter data manually
into the items below, "Manual Speed," "Manual SET,"
and "Manual Drift."
L When this item is set to "Manual," the Reference indicator
is displayed (p. 3)
Manual Speed
Sets your vessel's speed to between 0.0 and 40.0
(kn), 0.0 ~ 74.0 (km/h), or 0.0 ~ 46.0 (mph).
Manual SET
Sets the Tidal current direction to between 000.0 and
359.9°T (or M).
Manual Drift
Sets the Tidal current speed to between 0 and 20.0
(kn), 0.0 ~ 37.0 (km/h), or 0.0 ~ 23.0 (mph).
41
TLL Mode
Selects the action when the [ACQ (TLL)]/[
held down for 1 second.
• Output: Outputs the position information
where the cursor is positioned, to
the NMEA output terminals.
• Symbol: Marks on the screen where the
cursor is positioned.
• Output & Symbol: Outputs the position information
and marks on the screen where
the cursor is positioned.
L Set also "TLL Mode" in the System menu to display TLL
marks. (p. 41)
Transparency Menu
Sets the transparency level of the Menu screen and
dialog boxes to between 0% (Nontransparent) and
70% (Transparent).
Transparency Info.
Sets the transparency level of the Information box,
Own Ship information box, Cursor information
box or Range/COG/Tune tag to between 0%
(Nontransparent) and 70% (Transparent).
Standby Mode
Selects the displayed items in the Standby mode.
• Normal: Does not display inside the scale.
• AIS: Displays the AIS information.
Version
Displays the firmware version.
(TLL)] is