Eagle Electronics II

IMPORTANT!

Turning the arrival alarm off

prevents the AccuNavll from

sequencing to

the next

waypoint in the route. This, in effect,

turns the route off.

However,

the unit will still show navigation data to the current

waypoint in the route

at the time the arrival alarm was turned of f.

CANCEL NAVIGATION

To stop

the AccuNav II from navigating to waypoint or navigating to a

waypoint in a route, press the MENU key twice. Now

press the

key next

to the "CANCEL NAVIGATION" label. This

stops

all navigation.

NOTE:

Canceling navigation does not erase the route or any waypoints from

memory. It

merely stops

the AccuNav II from

navigating.

MODIFYING A ROUTE

Any part

of a route can be

changed at

anytime. For

example, suppose you

have a route consisting of

waypoints number 1, 2,

and 3 and you wish to

changewaypoint numberatowaypoint

number5. Simplypressthe

key, then press the

key next to the "More" label. Next, press the

key

to the "Route Planning" label. Finally, press the

key next to the "Recall

Route" label. Route number one appears

on the right

side of the screen.

The list of

waypoints used in the route are shown beneath the route number

and name.

Using the down arrow key,

movethe black boxto

waypoint

number 3. Now press the key

next to the "CHANGE" label.

Use the numbered keys to

change the

waypoint from 3 to

5. Next, press the key next to

the "ACCEPT" label. You've

changed the

waypointfrom

5. Finally, press the

key next to

the "EXIT" label and you're

fin-

ished.

.OUTE it 1

tJSIEL. NAME: JPiYS COLJE

— PIE

RSE

1 BUOY 1

2 BUOY2

SANDY PT

Remember, any pad of the route can be

changed at any time.

searching

forthe

satellite, then a"S"

appears.

ELV is the elevation (height)

of the satellite above the horizon from

your position. AZM is the azimuth

or direction of the satellite from

your position. For

example, if the azimuth

of a satellite is 180 degrees,

then it is due south. SNR is the

signal-to-noise

ratio. This tells

you

how strong

the satellite's signal is.

The

higherthe

SNR

number, the better.

The satellites that are visible in the

sky

from

your

position

are shown in the

lower

right corner of the screen under the "VISIBLE SATS" heading.

In the lower

left corner of the screen are the DOPS

displays. These show

you

the "Dilution Of Precision" (DOP)forthe

horizontal (1-IDOP), geometric

(GDOP), position (PDOP),

time

(TDOP),

and vertical (VDOP). The GDOP

is the combination value of HDOP, VDOP, and TDOP. The smaller the

GDOP's

number is, the better. The GPS receiver selects satellites based

on GDOP, therefore

always tries to use satellites that have

good DOP

values. These

depend on the azimuth and elevation of the satellite, and

any ground based obstructions.

Remember,

the smaller the number - the better on all of the DOPs.

POSITION SCREEN

The

position screen automatically appears after the AccuNav II is initial-

ized or

you

can view this screen at

any

time

by pressing the PUS

key. The

position display shows your present position, course over ground (COG),

cross track error

(XTE), bearing (BRG), and local time.

Your present position displays near the top of the screen in latitude!

longitude coordinates. This is

minute. For example, on this

page,

the

present position is 31

degrees,

8.642 minutes latitude

and 82 degrees, 50.853 min-

utes longitude. Below the

present position

on the left side

is the Bearing to Waypoint

(BRG) display. This is ex-

pressed in degrees true or

magnetic, depending on the _____________

mode the AccuNav II is in. To

the right of the Bearing is the

Course Over Ground (COG)

display.

32 13

shown in minutes, and thousandths of a

U U

N 36°08.856'

U 95°50.496'

jOM287OM

2:S:32 PMHIL 0101 mi

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