Raymarine GPS navigation User Manual

Distributed by

Any reference to Raytheon or

RTN in this manual should be

interpreted as Raymarine.

The names Raytheon and RTN

are owned by the

Raytheon Company.

NAV398GPS/IL>RAI\l

GPSlLORAN

OPERATION

MANUAL

Table of Contents

SECTION 1 INTRODUCTION

Page

1 .O General

1.1 About This Manual

SECTION 2 INSTALLATION

2.0 General

2.1 Unpacking and Inspection

2.1.1 Equipment Supplied

2.2 Display Installation

2.2.1 Choosing a Location

2.2.2 Mounting the NAV Unit

2.2.3 Flush Mounting

2.3 Electrical Connections

2.3.1 Power Input

2.3.2 Sensor Connections

2.3.3 Interface to External Navaids

2.3.4 Ground Connection

SECTION 3 OPERATION

l-l l-l

2-l 2-l 2-l

2-2 2-2 2-3 2-3

2-4 2-5 2-5 2-6 2-7

3.1 General

3.2 The Keyboard

3.3 Basic Operations

3.3.1 Turning the Unit ON/OFF

3.3.2 Contrast/Backlighting Level

3.3.3 Auto Start-up

3.3.4 Selecting Loran/GPS Mode

3.4 Initializing Sensors

3.4.1 Estimated Latitude

3.4.2 Estimated Longitude

3.4.3’The

Status Page

3-1 3-1 3-3 3-3 3-3 3-3 3-4

3-5 3-6 3-6 3-7

3.5 Main Display Modes

_ _ . . -. .

3.5.1 Position Display Mode

3.5.2 Customizing Display Modes

3.5.3 Navigation Display Mode

3.5.4

CD1

Display Mode

3.5.5 Plot Display Mode

3.5.6 Simulator Mode

3.5.7 Display Mode Operations

3.5.7.1 Saving Events

3.5.7.2 GOT0 Destinations

3-8

3-8 3-11 3-l 1 3-12 3-13 3-16 3-16 3-16 3-17

3.6 Entering Waypoints

3.6.1 General Waypoint Information

3.6.2

Waypoint

Directory

3.6.3 Naming Waypoints

3.6.4..Storing

Waypoints

3.6.4.1 Entry by L/L

3.6.4.2 Entry by TDs

3.6.4.3 Entry by Bearing/Distance

3.6.5 Waypoint List Operations

3.6.5.1 Selecting Waypoints

3.6.5.2 Editing Waypoints

3.6.5.3 SF Operations

3.7 Setting Alarms

3.7.1

Arrival Alarm

3.7.2 Anchor Alarm

3.7.3 Off-Course Alarm

3.8 Man-Overboard Mode

3-19 3-19 3-19 3-21

3-22 3-22 3-23 3-24

3-24 3-25 3-25 3-25

3-27 3-27 3-28 3-29

3-29

3.9 Route Plans

3.9.1 Make a Route

3.9.2 Following Route Plans

3.9.3 Editing Route Plans

3.9.4 Erasing Route Plans

3.10 The Menu Key

3.10.1 Main Menu Directory

3.10.2 Signal Status Pages

-- -. .

.- . .

- .-_ . . . - .

_ __. __ _ _*.--_ -.

3-30 3-31 3-32 3-33 3-34

3-35 3-35 3-36

..,.

.-.--.---

SECTION 1

INTRODUCTION

1 .O General

Congratulations on selecting Raytheons’ gation aboard your vessel. We are sure you will enjoy using this ultra modern, full function, and compact navigation system. The NAV 398, with its’ large STN LCD display, excellant graphics, on-sceen prompts, and oversized soft silicon keys, provide simple operations to guide you through the various navigation functions. From the moment you turn on the

be surprised at how easy it can be to use this Loran-C or GPS Navigator.

The

NAV 398

the Raynav 508 or 508A Loran-C sensors, or with the Raystar 108 8-Channel GPS sensor, or with both sensors together. One key press gives you quick access to either navigation system.

is a feature-packed Navigator that operates with inputs from

NAV 398

for Loran-C/GPS navi-

NAV 398, you

will

The

NAV

unit includes storage for up to 500 waypoints and 10 route plans

in the NAV unit’s internal memories. position as a waypoint instantly with a single key press. Overboard) key not only stores an instant position with one key press, but activates a special display to steer you back to the MOB location. A special Dynamic the route; even showing turns in the route and waypoints along the way.

CD1

display provides a 3-D effect for steering to destinations in

The[m[

1.1 About This Manual

to provide you with the most

important information for obtaining the best operation and performance from your NAV unit. Please take the necessary time to read the various sections.

key stores your present

The[E[(Man-

The purpose of this manual is

INTRODUCTION l-l

In the event that you are using a Loran-C Navigator for the first time, please

refer to the Raynav 508/508~ 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

RAYSTAR 108

GPS Sensor, the Raystar 108

instruction manual includes a general description of the GPS system which

may also be helpful. The

Raystar

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

thoroughly familiar with the unit’s controls and display formats. The

398

covers the Operations of the

NAV 398

and is intended to get you

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

1-2

SECTION2

INSTALLATION

2.0

General

Although your NAV 398 is designed to the highest levels of quality and performance, it can best attain those standards only when it has been properly installed. This section provides the user with practical guidelines to assist in the planning and the installation of the

2.1 Unpacking and Inspection

Use care when unpacking the unit from its shipping carton to prevent damage to the contents. It is also good practice to save the carton and interior packing material until the unit has been installed on the vessel. The original packing material should be used in the unlikely event that it is necessary to return the unit to the factory.

NAV 398

aboard your vessel.

2.1.1 Equipment Supplied

The table below lists items that are included with your

is missing, contact your Raytheon dealer for assistance.

Item

1 2 3 4 Spare Fuse MF60NR-2A

6 7

Description Part Number Quantity

NAV 398

Power Cable CQC-4737

Instr. Manual G263746-5

Yoke Bracket MTD005707 Yoke Knobs MPTG30012 Hardware Kit

Display

G263746- 1

NAV

398.

If an item

INSTALLATION 2-l

2.2 Display Installation

2.2.1 Choosing a Location

When choosing the location to mount the

the following criteria for the site:

The best location to provide ease of operation and viewing of the unit.

The best location to provide protection from the elements of the environment. Even though the USCG waterproofing specifications, common sense dictates that it should be mounted, whenever possible, so that it is not exposed to the direct effects of salt spray or the hot sun.

The best location with the most separation from sources of interference.

NAV

Display unit, please consider

398

is designed to meet the toughest

lIIizl

The unit can be mounted to a chart tabletop, suspended from the overhead,

or attached to a bulkhead using the yoke bracket supplied.

TABLE TOP

NAV396GPSLORAN

6 6

BULKHEAD OVERHEAD

INSTALLATION 2-2

. . ..-w... ~ . -

-__ _ _ .__ _.

..-: -_*..-. ,v ” -1..-

2.2.2 Mounting the NAV Unit

8.07”?

Use the following steps for yoke mounting of the

NAV

Unit:

Loosen the yoke knobs on each side of the

unit. and remove the mounting yoke bracket.

2. Position the bracket to the mounting surface and mark the holes for the mounting screws.

3. Mount the bracket with the screws supplied.

4. Slide the unit back into the yoke and secure in the desired viewing position by

tightening the yoke knobs. IN THE YOKE BRACKET

4 HOLES .25”

2.2.3 Flush Mounting

The display can also be flush mounted in a console using the Optional Flush Mount Kit (M95990) or the Trim Ring Kit (M95995) to give a more finished look to your installation.

FLUSH MOUNT KIT

CONSOLE

M95995

MOUNTINQ

,+=+A -__.-.

TRIM RING

1. Select the desired flush mounting location. A clear, flat area of at least

9” wide by 5” high having at least 5” of clear depth behind the panel is

INSTALLATION 23

required. When using the Trim Ring Kit, add

3/4”

to the width and height

clearance dimensions.

CAUTION

Make sure there are no hidden electrical wires or other items behind the desired location before proceeding. Check to see that free access for mounting and cabling is available.

2.Using the dimensions for the cutout hole shown,

draw the pattern for the cutout hole on the console.

3. Drill two l/2” pilot holes inside the cutout guide

area at diagonal corners.

4. Using an appropriate saw, cut along the outside

of the cutout line.

5. Remove the yoke knobs and the yoke and the rubber spacers from the

cabinet. If using the Flush Mount Kit verify that the unit fits correctly into the cutout. If using the Trim Ring Kit, attach the Trim Ring, then test fit into the cutout. It may be necessary to notch out some clearance in the cutout to pass the trim ring hardware through the panel.

7. Complete the installation of the DC power cable, data output, and sensor wiring into the console as per section 2.4 of this chapter. Be sure to allow some slack in the cables for service to the equipment when necessary.

8. Connect all cables to the unit rear panel.

9. Insert the NAV unit into the panel. Use a flat washer, locking washer,

and nut on each stud and secure to the console. In some cases you may prefer

to apply a light coat of RTV sealant around the cutout to seal the console.

2.3 Electrical Connections

The standard connections which are

normally made to enable the

NAV 398

to operate are the ship’s DC power, to either a Raynav 508 or 508A Loran-C sensor or to a Raystar 108 GPS sensor

or both. The NAV unit can also supply NMEA data to other equipments. The next sections discuss how to make NMEAj!EATALK

these connections.

INSTALLATION 2-4

_ ._ ,. __ . - . -.

_.j___- _..,.-

.-j --,-

2.3.1 Power Input

The NAV

398

is intended for use on vessels with 12 VDC power systems and can operate as long as the DC supply is maintained between 10 and 16 volts. The DC power system can be “negative” ground or have both positive and negative supply lines “floating” above ground. The

itiv,a”

intended for use on11pas

pround ve&

NAV 398 is

not

A 6 foot cable assembly containing wiring for the DC power and Data Output is supplied with your display unit and in many cases will be adequate to reach near the source of the 12 VDC power.

For best noise immunity from other shipboard electronics, if possible, avoid grouping the power connec-

tions on the same circuit breaker with radar, radio, or echo sounder power leads. The NAV unit’s wiring

FUSE RED

BROWN

DATA IN

DATA OUT+

DATA OUT-

-12VDC

+WD

DATA IN

should be kept separate as much as possible from other

Power Cable Wiring Diagram

devices.

Although the

NAV

unit’s power consumption is typically less than 5 watts, if the power leads need to be extended more than 10 feet, the wire size of the leads should be increased accordingly to minimize line losses. For cable runs of 20 - 35 feet #12 AWG wire is recommended.

OBSERVE PROPER POLARITY!

The

RED

wire should be connected to

the POSITIVE (+)

the BLACK wire should be connected to the NEGATIVE

sauce

terminal;

(-)

source

terminal If the power leads are accidentally reversed, the in-line fuse will blow. If this happens, recheck the polarity of the connections with a voltmeter (VOM) and, if necessary, reverse the leads for proper connection. Replace

the fuse.

2.3.2 Sensor Connections

The sensor units used with the NAV 398 normally obtain their

12VDC

operating power input from the NAV unit and, when the NAV unit has been turned ON, the sensors can then proceed to locate and track signals and

INSTALLATION 2-5

provide ship’s L/L position data on their own without other input requirements.

In a typical installation, the

connector is plugged directly into

“GPS”

on the rear of the cabinet.

6-pin

GPS sensor

the jack labeled

The 5

Pin plug of the Loran-C sensor is connected to the jack labeled “LORAN”.

If you are using the

Raystar

108 GPS sensor

together with the DGPS Beacon Receiver, the

‘SZ

“Y”

cable lead marked “Display” plugs into the GPS

jack.

2.3.3 Interface to External Navaids

The Power cable assembly (shown in the figure) includes two wires which

can provide an output of NMEA 0183 formatted data or

SeaT&data

for other navigational equipment such as radars, auto-pilots, video sounders, and plotters. Since the NAV unit outputs one data or the other, the same connections are used for either NMEA or

SeaTalk

data. The wires are

marked and colored as follows:

YELLOW = DATA+ GREEN

= DATA

The NAV 398 may supply NMEA 0183 data for up to three external equipments. Navaid devices connected to this output can receive the following NMEA 0 183 sentences:

If LORAN Sensor is in use:

GLL, GTD, RMA, RMB, VTG,

APA,

APB, BWC.

If GPS Sensor is in use:

When

SeaTalk

GLL, RMC, RMB, VTG,

data is used, the NAV unit provides: magnetic variation,

APA,

APB, HSC, BWC.

COG, Cross-Track error, Lat./Long, GPS status data (including HDOP, fix status), SOG,

waypoint

#, bearing, and distance, Arrival alarm, and MOB

signals to the SeaTalk bus.

External navigation equipment requiring NMEA 0183 data inputs nor-

mally obtain their required data via connection to the

NAV

398

data output ( yellow & green ) wires. However, some users may wish to operate the GPS (or Loran) sensor unit directly with other navigational equipment capable of

INSTALLATION 2-6

_ .

_ _ - . .

___._... _./

,I ---I-”

7.”

accepting position data in the NMEA format. Please refer to the Raystar 108 or Raynav 508/508A instruction manuals for details on making this type of interconnection.

Data Input

One feature of the NAV398 is to transfer the

waypoint

and route memory

contents of the internal memory to external computer files and to re-load the

memory from the computer.

Downloading of files occurs through the Data Output connections (Green and Yellow wires). To Upload files into the NAV unit the Data Input wires of the power cable assembly should be used. Make connections as follows:

DATAIN + = WHITE

DATA IN -= BROWN

The data Input must be in the NMEA 0 183 format using the WPL and RTE

sentences.

2.3.4 Ground Connection

One important need in any installation is to obtain the cleanest, noise-free signals possible, for measuring and calculating your position. Part of this requirement can be met by assuring a proper connection from your NAV unit to the ship’s ground system. The ground system provides both a completion of the signal path for the sensor and a drain for noise sources.

There are two separate wires labeled “GROUND” in the cable assembly. Both the WHITE and BROWN wires should be connected to the nearest connection point of the ship’s

Rl?

ground system.

Normally, on a steel hull boat, a good clean connection to the ship’s hull makes a sufficient ground. On Fiberglas or wood hull vessels, connection to a ground plate or to the engine block or other bonded groundwork should provide acceptable grounding.

INSTALLATION 2-7

34v4.

118" 35.236'

118"

714'

34O14.714'

35.236'

123'm 093'm

DTG

11.7nm 10.9kt

Sffi

NAV 1

! \

b-l

l ’

34Ol4.714'

118"

35.236'

)

POS

35%.

w115v5.223

452 ,

MAIN DISPLAY MODES - NAV 398

INSTALLATION 2-8

..._._,_ ,. -. _I

..“. ~. a- -.w.--

SECTION3

OPERATION

3.1 General

This chapter provides instructions for the operation of your new NAV 398

LCD NAVigator unit.

We think you will find the operation of the NAV 398 to be easy and straightforward. The approach to take in becoming familiar with it’s operation is one of relaxed confidence. The unit is quite “user friendly” and relies on screen prompting to guide you through the operations and set-up menus.

As you progress through the operating section, take time to practice each function of your NAV398. Study the illustrations and repeat operations, if necessary, until you have become comfortable and confident. Time spent in becoming familiar with the unit will strengthen your knowledge, confidence,

and skill in using this full-featured NAVigator where it counts....afloat.

Thank you for selecting one of Raytheon’s fine NAVigation products. Great care and effort has been put into providing you with a useful, attractive design. We are sure it will provide many years of valuable data and trouble free operation.

3.2

The Keyboard

The

NAV

398 is designed for simple operation, but if you should ever become confused over which display you are on or, if you get lost while performing various operations or entries,usu- ally pressing the or the familiar Main menu.

One other item to remember about the keyboard is that a “valid” or correct key press is confirmed by a single audio “beep” tone, while if an invalid or wrong key is pressed, a series of multiple “beeps” will be heard. If this happens, just check the screen again and pick the proper key operation.

-1

will always return you to the Position display

NAVigation

key

OPERATION 3-1

The keyboard consists of 15 silicon rubber keys. Some of the keys carry dual labels such main operations of the once vou have entered the main oueration. Notice that some keys such as

1-1

and/morJMENUJ

operation when depressed. When Menus are on screen, and

thdE[

as(ormkeys

NAV

unit. The numeric operation of the key is used

and are normally used to enter the

have only one label and perform only one

th$%%&

IGoTo/7)

keys are softkeys used to activate selections on the menus.

KEY

rAkARMf9

PURPOSE

Turns power On/Off; activates ContrastILite menu .

Accepts data for entry;

Reverts to Main menu or POS display; resets numeric values to 0; silences audio beeper. Selects Position displays; selects digit 1.

Selects NAVigation displays; selectsdigit 2.

Selects a

Selects

waypoint

Waypoint

as a destination;selects digit 3.

entry function; selects digit 4. Selects Route functions; selects digit 5. Memorizes ship’s present position into designated

Waypoint memory; selects digit 6.

Selects destination waypoints; selects digit 7.

Selects Plot Mode display; selects digit 8.

Selects Alarm menu; selects digit 9.

Selects Loran C or GPS operations; selects digit 0.

Selects menu operations.

Selects Man-Overboard special alarm function.

OPERATION 3-2

. ___._*

_,_~.. ,-. _._-- .-

. . _.

-c_. .- I “---.-.

3.3

Basic Operations

Now that the NAV unit has been properly installed and the keypad layout has been described, we should be ready to begin learning the basic operations of the unit. So, let’s press the power key and get going!

3.3.1 Turning Unit On/ Off

To turn the unit ON, press

themlkey.

To turn the unit

OFF,

press the /pwRp<ey

andmqkeys

simultaneously.

The LCD screen will go blank and the unit will be OFF.

3.3.2 Contrast/Backlighting Level

The LCD display contrast level and the keypad

CONTRAST

illumination may be adjusted for dusk or night use and viewing. While the unit is ON, just press

them1

The Backlighting menu is only temporary and

key to turn the backlighting menu On.

HI LO

LITE

will disappear when 7 seconds have elapsed with no keys pressed.

PRESS CLEAR TO EXIT

3.3.2.1 Contrast Setting

When the

BackLight

menu appears, use

thelwpT/4[and[T

keys to

vary the contrast level of the LCD for best viewing. The level ranges from 0

to 15.

The/eikey

increases the contrast

level;llkey

decreases the

contrast level, as the arrows indicate.

3.3.2.2 Backlighting

Use

thelc/uolkey

to highlight HI, LOW, or OFF. The selection becomes

the active choice when it is backlighted in the menus.

3.3.3 Auto Start-up

Each time the

operation has begun. While this screen is in view, the

NAV

398 is turned “ON”, the

NAV

398 ID screen indicates

NAV

398

is beginning

an internal self-test to verify that the Loran-C sensor, GPS sensor, or both (if

connected) are working, as well as testing its own internal memories.

The

NAV 398

characters on this screen show the

ID screen usually appears for about 3 seconds. The smaller

version of the operating software program used inside the NAV unit. This version number is handy information to remember should a problem develop within the unit.

OPERATION 3-3

l.“,T.. -se

NWV 9PB

MRSON

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

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

Startup sequence is completed, and normal operation is underway.

3.3.4 Selecting Loran/GPS Mode

One key feature of the depending on the type of sensor that is connected, each system is attached. Normally, if only one sensor is used, the unit detects

the type of sensor and automatically puts the mode during the Auto Start-up program. If both the RayNAV 508/A Loran-C and

Raystar

operating and normally tracking signals and either system can provide your position and NAVigation data instantly.

108 GPS sensors are connected,

L”

NAV

398

‘&WON

1.0

NOW TESTING

I I

NAV

3% is that the unit can be either a loran or GPS

NAV

ROM OK

RAM

-4

To SIONAL SYAYU.9 (IF NOT

To FMlYlON DlSFiAY IF TRACK,,,O.

anytime by pressing the

Position

unit into the correct system

.each

SENSOR OK

lMCNlN0)

SELF TEST

display, the Auto

.or

both, if a sensor for

system will always be

results .

TheI-

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

tion, NAVigation, CDI, or PLOT modes.

When the GPS mode is selected, “GPS”

characters become illuminated along the bottom 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

key is used to toggle the unit

PM-

. .

_;I ._.,..

. . .

- .c -

_._.,.. - .-.. A._-

.-. *

.-_ ___- ,__ _

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

If the Differential Beacon Receiver is connected and tracking the beacon signal “DGPS” is indicated in the message window. The latitude/longitude readouts will include the differential corrections for greater accuracy.

When the Loran-C mode is selected, the “LORAN” characters will be illuminated along in the message window of the display and the L/L position and ship’s course and speed data is then Loran-C derived.

When both GPS and Loran sensors are connected, the NAV unit always

selects the sensor that was “last used” when the power is turned ON. If its

the very first time the unit is used and both sensors are connected, the GPS is always selected as the priority system.

3.4 Initializing Sensors

Although the

R~YNAV

508 Loran and Raystar 108 GPS sensors are capable of finding the latitude/longitude position once they have been powered up, at the very first power-up following installation or after a Master Reset, the

position finding process may take up to 30 minutes or more. This startup time can be reduced to some degree by entering initialization information into the sensor’s memory. The process for initializing each sensor appears in the following paragraphs.

The very first time the NAV unit is operated, or following a Master reset of the unit, the screen will prompt you to enter your “estimated latitude” coordinate followed by entry

of the “estimated longitude” coordinate., Once you’ve entered this information into the sensors via the

NAV 398, the

sensors should be able to find

your location more rapidly.

The loran sensor only needs the initial L/L input and should typically lock-in

in 3 to 5 minutes. The GPS sensor also needs the initial L/L input and prefers to have the Date and Time and Antenna height information as well for quick acquisition and tracking.

OPERATION 3-5

The sensors always store the Lat/Lon position in memory. The next time you use the NAV unit, the only thing you’ll have to do is just turn it “ON”. In a few minutes your position will be displayed.

3.4.1 Estimated Latitude

With the "ESTIMATED POSITION" screen displayed, enter the latitude of your position, using six digits. It is a good idea to enter your position to within

one degree of latitude. When the numbers are correct.

nress(.

ESTIMATED POSITION

42’

95. QQ'

THENPRESSENTER

WQQQ' QQ.QQ'

PUS&

ESTIMATED POSITION

N 42’ Q5 QQ’

THEN PRESS ENTER

WQz1’ 14.5Q’

WJ’

ENTERING INITIAL POSITION

If you’re new to navigation terminology, please refer to the Globe figure

on the previous page for verifying that the coordinate to be entered is truly

your latitude.

Check to see that the direction symbol of your latitude entry on the screen. If to change the symbol to

Example:

Press 4,2,0,5,0,0,

“N”.

Press

I-J-[,

“N”

is correctly indicated to the left

“S”

is displayed, press thelN/Sbof?key

-1

when the direction is correct.

for N 42’ 05.00’

Ifvou

make a mistake in entering your estimated latitude, press

key and start the entry again. When the entry is correct, press accept the entry.

3.4.2 Estimated Loneitude

When-1

entry, the message on the display screen will

changeto

enter your estimated longitude numeric value, this time using seven digits-with an accuracy within

OPERATION 3-6

is iressed to

"ENTJZRYOLJRLONGITUDE~~.

finish

your latitude

Asbefore,

How to read a

W 071’ 25.10+~aom=

theI-

-ito

DEGREES

~MINIJTES

Lat/Long

one degree of longitude. For longitudes of less than 100 degrees, begin the entry with

“0”.

After you press the

is correctly indicated to the left of your longitude entry.

press the

to change the symbol to

\r/wl

softkey

direction is correct,

Example: 0,7,1,1,4,5,0,

If you make any mistakes while entering your longitude, press

key and retype the entry. Then

mjey,

pres@CKJ.

mJ=lfor

check to see that the direction symbol “W”

“E”

is displayed,

fgW'T

or vice versa. If the

W 71’ 14.50’

the-1

press([to

complete the estimated

position entry.

When-1

is pressed to finish your longitude entry, the estimated

LAT/LON entry is complete and the display will return to the Auto Start-up

sequence at the Status page for sensor in use.

3.4.3 The Status Page

The STATUS screens show the condition of the acquisition and tracking of signals for the sensor in use.

In normal tracking operation for loran, the

SIGNALSTATUS LORAN

EST

flA@

GRI chain and secondary signals received are

ECD

indicated in the status box. The most important

information are the status numbers to the right of the

SNR

characters. These numbers show the

PRESS CLEAR TO EXIT

progress of the acquisition program towards signal lock-on. When 8’s are indicated for the Master and selected Secondaries, the loran is “Locked-on”

and tracking the loran signals. At that point the screen automatically will switch to the Position screen and navigation is available.

In normal tracking operation for GPS, there

is only ONE important indicator indicating that the GPS is “Locked-on” and tracking the

satellite signals. That indicator is when the satellite ID number becomes a reversed “Block” character. When four or more signals are in this state, the screen will switch to the Position screen and navigation is now available.

PRESS CLEAR TO EXIT

OPERATION 3-7

More information on the Status and signal tracking screens appears later in

this chapter.

3.5 Main Display Modes

The NAV 398 has FOUR Main Display modes used most often during normal

navigation. They are the POS (Position), NAV (NAVigation),

CD1

Graphic , and PLOT Tracking display modes. These modes can be selected directly by pressing:

[ml

for the POS mode displays

I=[

for the NAV screens

for the

CD1

displays

)pLoT/FII for the Plot screens

3.5.1 The POSition Display Mode

There are FIVE different POS displays. The POS display is changed from

POSl to POS2, POS 3, etc. by pressing the

always shows the selected

age number in the lower right corner of

Im[key.

The POS screen

the screen. Each press of key toggles the displays.

The POS screens always show your vessel’s present position coordinates in the large 7-seg- ment readouts of either

Lat/Lon

or loran

TDs.

Each POS screen combines different navigation information with the position coordinates. The POS

Lat/Lon

display may look differently if

N 34O14.714'

w 118" 35.236'

you have selected the higher resolution readouts for your

Lat/Lon

in the GPS Setup menu. The

NAV 398 can show GPS L/L to a resolution of

0.001 of a minute.

The POS 1 screen combines the most essential information together

on-

screen of your position in the large digits, bearing and distance to the destination waypoint, and vessels’ course and speed over the ground.

The number and name of your

waypoint

destination is also displayed, as well as the selected route plan number that is currently active. If no destination

waypoint

is selected, the BRG and

DTG values will be blank, and “NO DESTINA-

TION

” appears in the

waypoint

data bar.

OPERATION 3-8

__. .__ .,

,.._

.--..-,-x-.

Along the bottom row, the sensor “in use” is indicated in the highlighted block. If the Raynav 508 is used, “LORAN” appears in the block. If the

Raystar 108 is used, “GPS” appears together with the current GPS Fix mode

type. If the Differential Beacon Receiver is connected and a beacon is received and differential corrections are included, “DGPS” will be indicated.

Whenever any alarm signals or warnings are activated, they will appear in

a “blinking block” to the right of the page ID indicator and accompanied by the audible beeper.

POS 2

When

the//[key

is pressed,

the

POS 2 screen

appears.

Across the top line of this display a (Course Deviation Indicator) appears. The will only be active after waypoints have been entered into the been selected as the destination waypoint.

The

CD1

and a scale depicting your vessel’s deviation from an intended track line to the destination. On this “angle” to show if the vessel is tending to close

to the track line, stay even with the line, or move further OFF the line.

The Setups menu to set the width of the or OSnm from the track line. For example: When the scale is set to O.lnm, the increments of the scale are

POS 3

If you press

screen appears.

CD1

range scale can be changed in the UNITS section of the System

NAV

unit memories, and one has

is made up of a “boat-like” symbol

screen, the ship symbol changes its

CD1

.025

or approximately 150 feet to each mark.

them1

key again, the POS 3

CD1

34O14.714'

118" 35.236'

lane between plus or minus 0.1,0.3,

The POS 3 display swaps the digital version of the Cross Track error value

(XTE),

Time, and Trip Log distance. On this screen you

can see a sample of the alarm readout appearing to the right of the page ID in the bottom row.

Time-to-go to

waypoint

CD1

scale for the

(TTG), local

OPERATION 3-9

+ 52 hidden pages