Viewing Graphs; Setting The Graph Range And Time Scales; Tide, Current, And Celestial Information; Tide Station Information - Garmin GPSMAP 8500 Black Box Owner's Manual

2 Select an option:
• To set all the readings for the present trip to zero, select
Reset Trip.
• To set the maximum speed reading to zero, select Reset
Maximum Speed.
• To set the odometer reading to zero, select Reset
Odometer.
• To set all the readings to zero, select Reset All.

Viewing Graphs

Before you can view graphs of various environmental changes,
such as temperature, depth, and wind, you must have an
appropriate transducer or sensor connected to the network.
Select Info > Trip & Graphs > Graphs.

Setting the Graph Range and Time Scales

You can indicate the amount of time and the range of depth that
appear in the depth and water temperature graphs.
1
From a graph, select Graph Setup.
2
Select an option:
• To set a time-elapsed scale, select Duration. The default
setting is 10 minutes. Increasing the time-elapsed scale
allows you to view variations over a longer period of time.
Decreasing the time-elapsed scale allows you to view
more detail over a shorter period of time.
• To set the graph scale, select Scale. Increasing the scale
allows you to view more variation in readings. Decreasing
the scale allows you to view more detail in the variation.
Tide, Current, and Celestial
Information

Tide Station Information

You can view information about a tide station for a specific date
and time, including the tide height, and when the next high and
low tides will occur. By default, the chartplotter shows tide
information for the most recently viewed tide station and for the
present date and time.
Select Info > Tides & Currents > Tides.

Current Station Information

NOTE: Current station information is available with certain
detailed maps.
You can view information about a current station for a specific
date and time, including the current speed and level of the
current. By default, the chartplotter shows current information
for the most recently viewed current station and for the present
date and time.
Select Info > Tides & Currents > Currents.
Celestial Information
You can view information about sunrise, sunset, moonrise,
moonset, moon phase, and the approximate sky view location
of the sun and moon. The center of the screen represents the
sky overhead, and the outermost rings represent the horizon.
By default, the chartplotter shows celestial information for the
present date and time.
Select Info > Tides & Currents > Celestial.
Viewing Tide Station, Current Station, or
Celestial Information for a Different Date
1 Select Info > Tides & Currents.
2
Select Tides, Currents, or Celestial.
18
3 Select an option.
• To view information for a different date, select Change
Date > Manual, and enter a date.
• To view information for today, select Change Date >
Current.
• If available, to view information for the day after the date
shown, select Next Day.
• If available, to view information for the day before the date
shown, select Previous Day.
Viewing Information for a Different Tide or
Current Station
1
Select Info > Tides & Currents.
2
Select Tides or Currents.
3 Select Nearby Stations.
4
Select a station.
Viewing Almanac Information from the
Navigation Chart
1
From a chart or 3D chart view, select a location.
2
Select Information.
3 Select Tides, Currents, or Celestial.

Warning Manager

Viewing Messages

1
Select Info > Warning Manager.
2
Select a message.
3
Select Review.

Sorting and Filtering Messages

1
Select Info > Warning Manager > Sort/Filter.
2
Select an option to sort or filter the message list.

Saving Messages to a Memory Card

1
Insert a memory card into the card slot.
2
Select Info > Warning Manager > Save to Card.

Clearing all of the Messages

Select Info > Warning Manager > Clear Warning Manager.

Viewing Video

Before you can view video, you must connect to a compatible
source.
Select Info > Video.

Selecting a Video Source

1 Select Info > Video > Menu.
2
Select Source > Sources.
3
Indicate the source of the video feed.
Not all choices listed are available on all models.
• To display video for the inputs connected to the
chartplotter, select a video option.
• To view component video, select Component.
• To display real-time data from a computer, select PC.
• To simultaneously display four RCA video inputs, select
Quad Video.

Tide, Current, and Celestial Information