Sonar Check - Raymarine Dragonfly Installation And Operation Instructions Manual

Checking GPS operation
You can check that the GPS is functioning correctly using the
Chart application.
1. Select a view from the View switcher which includes the
Chart application.
2. Check the screen.
You should see:
Your vessel position (indicates a GPS fix). Your current
position is represented by a vessel symbol or solid circle.
Your position is also displayed in the data cell on the bottom
right of the display.
A solid circle on the chart indicates that the vessel speed
is to low (i.e. less than 0.15 kts) to provide Course Over
Ground (COG) data.
Note: It is recommended that you check the displayed vessel
position in the Chart application against your actual proximity
to a known charted object. GPS receivers typically have an
accuracy of between 5 m and 15 m.
Note: A GPS Status screen is available from the Tools &
Settings page. This provides satellite signal strength and
other relevant information.
Getting started

6.5 Sonar check

Checking the sonar application
From the sonar application:
1. Check the display.
With the transducer active you should see a depth reading in
the data cell in the top left of the display.
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