Garmin 340c Manuale Proprietario

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(hddd°mm.mmm’). The following additional formats are 

available: latitude/longitude in decimal degrees (hddd.

ddddd°) and latitude/longitude in degrees, minutes, and 

seconds (hddd°mm’ss.s”).

•  Heading—sets the reference used in calculating heading 

information for the Bearing, Compass, Course, and Track 

Advanced Data fields (see page 39). True displays data 

with reference to True North. 

Magnetic displays data with 

reference to Magnetic North using the magnetic variation 

value received in the RMC NMEA sentence (see page 17).

The Time tab enables you to display the current time and date, 

adjust the 12 or 24-hour time format, enter a time zone, and adjust 

for daylight saving time to show correct local time. The time 

appears only if you are receiving valid NMEA input from a GPS 

unit (see page 17) or if the Fishfinder is in Simulator mode. 

The following settings are available:

•  Time Format—lets you choose from 12-hour, 24-hour 

(military), or UTC (also called Greenwich Time) time 

format.

•  Time Zone—lets you choose your correct time zone to show 

correct local time.

•  Daylight Saving Time—lets you choose from Auto (not 

always available), On, or Off to adjust for daylight saving 

time. 

•  Current Time and Current Date—displays the current 

time and date. These fields are blank if the Fishfinder is not 

receiving a time from an attached GPS. It is not possible to 

edit these fields.