Eagle Electronics UltraNavGPS e

___________ For example, suppose you are anchored at a location that is accurately

However, situations occur

where it becomes necessary

to increase or

decrease the

sensitivity. This

typically happens

when

you wish to see

detail,

so an increase in sensitivity is indicated. The procedure to

adjust

it is the same whetherthe unit is in the

automatic or manual mode.

adjust

the

sensitivity, press

the SENS

key. The

sensitivity adjust menu

appears

on the left side of the screen. The switch forthe Grayline adjust

menu is immediately beneath it.

The

sensitivity menu has up

and down

arrows, plus

a vertical bar graph.

The graph gives a visual indication of

the

sensitivity level. The number

above the

up arrow also shows the percentage of

sensitivity in use.

marked on

a chart. Your UltraNavGPS

displays a

longitude position that is

.010

degrees

less than the one on the chart. Using

the Position Correction

Factor (PCF) Offset

feature, you make the UltraNavGPS read the same as

the

chart. If you raise anchor and move, the UltraNavGPS will add the

change you made to all

positions. This makes it more

closely match the

datum used by the chart. For this reason, you should be careful when

entering

the PCF Offset. This is saved in

memory. It does not

change

when

the unit is turned off.

To use the PCF Offset, first subtract

your

current position

from the location on the chart

you wish to match. For example, if your

location is N 32°1

0.220',

W80°1 2.106' andthe

chart's

position

is N 32°1

5.604',

W080°1

2.714',

then the position

offset is N 00°05.384',

W 00°00.608'. Press the MENU key, then

press the key adjacent to the 'CHANGE

SETUP" label. Now

press

the

key adjacent to

the "MORE" label until the "ENTER PCF

OFFSET" label

appears. Press the

key adja-

cent to that label. The screen shown at right

appears. r

Now enter the difference between your position and the chart's location in

latitude and longitude. The screen shown below appears next.

To increase the

sensitivity level, press the key adjacent to the menu's up

arrow on the left side of the unit. As you press

the

key, the menu's bar

graph

will grow

taller and the

percentage will increase in value. You can

also see the difference on the chart record as it scrolls. When the

sensitivity

is at the desired level, release the

key.

To decrease the

sensitivity level, press

the key adjacent

to the down

arrow. The

bargraph

and percentage

will decrease. When the

sensitivity

is at the desired level, release the

key.

When

you reach either the maximum or minimum limit, the

speaker

will

sound an alert tone.

To turn the menus off, press the key adjacent to the CLEAR key at the

bottom left side of the unit.

Press the

keys adjacent

to the N/S or E/W

Toggle labels to switch the latitude and

longitudetosouthoreast, respectively.

When

the position at the top of the screen is

correct,

press

the

key adjacent to the "Fin-

ished" label. The UltraNavGPS now adds

the correction factor to all

position displays. ra

N'S TOGGLE

W'E TOGGLE

2nd PCF ENTRY SCREEN

10 63

q3•3rT -20

04

GRAY I

•aa.iaa

N — 0_ —

- —— —

U———0——.

JSE NUMBERED KEYS TO INPUT YOUR OFFSET POSITION

itt PCF ENTRY SCREEN

N 00005334

LI000°0O.603

- FINISHED

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