H398 – Raymarine GPS navigation User Manual

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398

ROM OK

1.0

-4

SENSOR OK

NOW TESTING

I I

SYAYU.9 (IF

The ID screen is then followed by a second screen which advises that the

SELF TEST is in process, and a third screen prints the

SELF TEST

results .

anytime by pressing the

The Signal Status screen provides a readout or the progress made by the

sensors in acquisition and tracking of the signals. Once full signal lock-on
has been achieved, the screen switches to the

display, the Auto

Startup sequence is completed, and normal operation is underway.

3.3.4 Selecting

Mode

One key feature of the

NAV

is that the unit can be either a loran or GPS

depending on the type of sensor that is connected, both, if a sensor for
each system is attached. Normally, if only one sensor is used, the unit detects

the type of sensor and automatically puts the

NAV

unit into the correct system

mode during the Auto Start-up program. If both the

508/A Loran-C

and

108 GPS sensors are connected,

system will always be

operating and normally tracking signals and either system can provide your
position and

data instantly.

key is used to toggle the unit

between the two system sensors. The systems
can be changed anytime you are on the

tion,

CDI, or PLOT modes.

When the GPS mode is selected, “GPS”

characters become illuminated along the bot-
tom left edge of the LCD display and the
latitude/longitude position and ship’s course
and speed data is then GPS derived.

OPERATION 3-4

-.*-.-T-T.--

. . .