Eagle ACCUNAV 2 Specifications download pdf (Page 17)

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

MENU

key,

then

press

the

key

next to the "More" label.

Next,

press

the

key

next

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

3

to

5.

Finally, press

the

key

next to

the "EXIT" label

and

you're

fin-

ished.

.OUTE it

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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

it

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

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