Sonar Alarm Settings; Transducer Installation Settings; Sonar Recordings; Recording The Sonar Display - Garmin GPSMAP 500 Series Owner's Manual

screen. Correcting installation issues that cause noise is the
best way to eliminate interference.
Surface Noise: Hides surface noise to help reduce clutter.
Wider beam widths (lower frequencies) can show more
targets, but can generate more surface noise.
Color Gain: See Adjusting the Level of Detail, page
TVG: Adjusts the appearance of returns to compensate for
weakened sonar signals in deeper water, and reduces the
appearance of noise near the surface. When the value of this
setting is increased, the colors associated with low-level
noise and fish targets appear more consistent through
various water depths. This setting also reduces the noise
near the surface of the water.

Sonar Alarm Settings

NOTE: Some settings require external accessories.
Select Settings > Alarms > Sonar.
Shallow Water: Sets an alarm to sound when the depth is less
than the specified value.
Deep Water: Sets an alarm to sound when the depth is greater
than the specified value.
Water Temp.: Sets an alarm to sound when the transducer
reports a temperature that is 2°F (1.1°C) above or below the
specified temperature.
Fish: Sets an alarm to sound when the device detects a
suspended target.
• sets the alarm to sound when fish of all sizes are
detected.
• sets the alarm to sound only when medium or large
fish are detected.
• sets the alarm to sound only when large fish are
detected.

Transducer Installation Settings

NOTE: Not all options and settings apply to all models, sounder
modules, and transducers.
From a sonar view, select Menu > Sonar Setup > Installation.
Restore Sonar Defaults: Restores the factory default settings
for the sonar view.
Transducer Type: Allows you to select the type of transducer
that is connected to the device.
Shift: Allows you to set the depth range on which the sonar is
focused. This enables you to zoom in to an area within the
focused depth.
Flip Left/Right: Changes the orientation of the SideVü sonar
view when the transducer is installed backward.
Flipped: Sets the orientation of the Panoptix sonar view when
the transducer is installed with the cables pointing toward the
port side of the boat.
Beam Width: Sets the width of the Panoptix transducer beam.
Narrow beam widths allow you to see deeper and farther.
Wider beam widths allow you to see more coverage area.
Use AHRS: Allows the internal attitude heading and reference
system (AHRS) sensors to detect the installation angle of the
Panoptix transducer. When this setting is turned off, it is
assumed the transducer is installed at a 45-degree angle.

Sonar Recordings

Recording the Sonar Display

NOTE: Not all models support sonar recording.
1
Insert a memory card into the card slot.
2
From a sonar view, select Menu > Sonar Setup > Sonar
Recording > Record Sonar.

Radar

15 minutes of sonar recording uses approximately 200 MB of
space of the inserted memory card. You can record sonar
until the card reaches capacity.

Stopping the Sonar Recording

Before you can stop recording sonar, you must begin recording
18.
it (Recording the Sonar Display, page
From a sonar view, select Menu > Sonar Setup > Sonar
Recording > Stop Recording.

Deleting a Sonar Recording

1
Insert a memory card into the card slot.
2
From a sonar view, select Menu > Sonar Setup > Sonar
Recordings > View Recordings.
3
Select a recording.
4 Select Delete.

Playing Sonar Recordings

Before you can play back the sonar recordings, you must
download and install the HomePort
sonar data onto a memory card.
1
Remove the memory card from the device.
2
Insert the memory card into a card reader attached to a
computer.
3
Open the HomePort application.
4
Select a sonar recording from your device list.
5
Right-click the sonar recording in the lower pane.
6
Select Playback.

Depth and Water Temperature Graphs

If you are using a depth-capable transducer, or are receiving
water depth information over NMEA
can view a graphic log of depth readings over time. If you are
using a temperature-capable transducer, or are receiving water
temperature information over NMEA 0183 or NMEA 2000, you
can view a graphic log of temperature readings over time.
The graphs scroll to the left as information is received.
Select Sonar > Data Graphs.
Setting the Depth and Water Temperature 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 Select Sonar > Data Graphs > Menu.
2 Select Depth Graph Settings or Temperature Graph
Settings.
3
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 depth-range or temperature-range 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.
The marine radar transmits microwave energy that has the
potential to be harmful to humans and animals. Before
beginning radar transmission, verify that the area around the
radar is clear. The radar transmits a beam approximately 12°
above and below a line extending horizontally from the center of
the radar.
21).
™ application and record
0183 or NMEA 2000, you
®
Radar
WARNING
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