Garmin 190-01098-00 Manual Do Utilizador

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VHF 300 Series Owner’s Manual 
33
Advanced Operation
4.  Select from the following options:
OK
—save your changes and return to the previous screen. 
CANCEL
—remove your changes. 
Modifying the Speed Unit of Measurement
You can adjust the unit of measure that is displayed for the speed calculation throughout 
the radio. The Speed Over Ground (SOG) on the Home screen will be displayed in the 
measurement you select here.
1.  Press the 
MENU
 key.
2.  Select 
SYSTEM
 > 
UNITS
 > 
SPEED
.
3.  Select from the following options:
KNOTS
—change the unit of measure to knots.
MPH
—change the unit of measure to miles per hour.
KPH
—change the unit of measure to kilometers per hour.
Modifying the Heading Display
You can modify the heading to display either true or magnetic calculations. This heading 
measurement is displayed throughout the radio including Course Over Ground (COG) on 
the Home screen.
1.  Press the 
MENU
 key.
2.  Select 
SYSTEM
 > 
UNITS
 > 
HEADING
.
3.  Select from the following options:
TRUE
—change the calculation to reflect true north.
MAGNETIC
—change the calculation to reflect magnetic north.
NOTE: If your radio is configured for NMEA 2000 communication, you cannot select 
TRUE or MAGNETIC. Your radio displays AUTO as the setting and displays heading 
data based on the information provided over the network (PGN 129026 – COG/SOG, Rapid 
Update).
Selecting the Frequency Band
You can switch between the USA, International, or Canadian frequency bands. For a list of 
.
NOTE: The International frequency band is the only band available for the VHF 300i and 
the VHF 300i AIS, unless you have the other bands enabled by an Garmin authorized dealer.
1.  Press the 
MENU
 key.
2.  Select 
MENU
 > 
CHANNEL
 > 
FREQUENCY BAND
.
3.  Use the Channel knob to select 
USA
INTERNATIONAL
, or 
CANADA
.