Raymarine GPS navigation - Manual (Page 6)

In the event that you are using a Loran-C Navigator for the first time, please
refer to the Raynav Loran-C Sensor instruction manual for basic
loran information. The Introduction section of the 508 manual includes a
listing of common Loran C Terminology used with loran.
If your NAV398 is using the 108 GPS Sensor, the 108
instruction manual includes a general description of the GPS system which
may also be helpful. The 108 GPS sensor is compatible with
Raytheon’s Differential Beacon Receiver. If you have added the DGPS
Receiver to your system, a simple explanation of the US Coast Guard’s
DGPS system is included in that manual for your reference.
Section 2 of this manual contains important information concerning the
installation of your new NAV unit. Although the typical installation might
seem straightforward and simple, we highly recommend that this section be
read completely and the guidelines for installation be closely followed to
assure a more trouble free and efficient operation of your new unit.
Section covers the Operations of the NAV 398 and is intended to get you
thoroughly familiar with the unit’s controls and display formats. The NAV
uses many on-screen prompts to help guide you through operations and
logical key operations, which should be easy to remember.
The best way to learn about your NAV 398 is to dive right in. You can’t
damage the unit by randomly pressing the keys, so don’t be afraid to
experiment. If at any time the results appear confusing, just press the
key and start again.
Section 4 contains technical information concerning some basic care and
maintenance for your unit. In the event that the unit should ever require
repairs, it is recommended that these services be provided by an Authorized
Raytheon repair facility or by the Raytheon Factory Service Center.
Before proceeding to install this unit, please take a few moments to fill out
the warranty registration card located behind the front cover of this manual.
You must return this card to Raytheon Marine Company to assure the
registration of the warranty for your NAV unit. The postage is prepaid if the
card is mailed within the USA.
INTRODUCTION