Garmin GPSMAP 620, Owner'S Manual

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GPSMAP 620 Owner’s Manual
Marine Mode: Advanced Configuration
Save to Card —only use this option if instructed to do so by a
Garmin Product Support Specialist.
Speed Sources —specify the sensor used for Wind numbers. Touch
Wind
to toggle between Water (from a water speed sensor) and
GPS (from the calculated GPS speed).
usage Mode —change to automotive mode.
Changing Units of Measure
From the Home screen, touch Configure > units .
System units —specify system-wide units of measure: Statute
(mh, ft, ºF), Metric (kh, m, ºC), Nautical (kt, ft, ºF), or Custom .
Touch
Custom
to individually define units of measure for:
Depth
—set the units of measure for depth to
Feet
,
Fathoms
, or
Meters .
temperature
—set units of measure for temperature to
Fahrenheit (ºF) or Celsius (ºC) .
Note: You must be receiving NMEA sonar depth data or using a
Garmin sounder module to view depth and temperature information.
Distance
—set the units of measure for distance readings (
Miles
,
Kilometers
, or
Nautical Miles
).
Speed —set the units of measure for Vessel Speed and for Wind
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Speed readings ( Miles per Hour , Kilometers per Hour , or
Knots
).
elevation —set the units of measure for elevation readings
(
Feet
or
Meters
).
atmospheric pressure —set the units of measure for
atmospheric ( Millibars or inches of Mercury ) pressure
readings.
Heading —set the reference used in calculating heading
information.
auto Mag Var (
Automatic Magnetic Variation)—automatically
set the magnetic declination for your location.
true
—set true north as the heading reference.
grid —set grid north as the heading reference (000º).
user Mag Var —set a custom magnetic variation value.
position Format
—select the coordinate system in which a given
location reading appears. Do not change the position format unless
you are using a map or chart that specifies a different position
format.
Map Datum
—select the coordinate system in which the map is
structured. The default setting is WGS 84. Do not change the map
datum unless you are using a map or chart that specifies a different
position format.
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