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Ugs 8, Umts! nauiicol, Guio hag e084 – Garmin GPS 120 User Manual

Page 48: Warn/ngi, And approaches, Key west harbor, Nauiicol

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HflUICflTMII SETUP

№ITIOH FORMAT:

HAP DATUM:

UGS 8^

ODISOALE:

*0.25

UMTS!

Nauiicol

HEADING:

Guio Hag E084

The CPS 120 corns

with

the htilude and

longituik position

jomat

and

WGS 84 map

datum as the

default

set-

tings.

The WGS 84 map

datum is a worldwide

datum that’s suitohie/or

use with most govern­

ment charts. Only

change the map datum

if

the charts you are using

speeijiy a different map

datum in the legend.

WARN/NGI

Using the wrong datum

can seriously effect

the

accuracy

of your GPS.

Always

set

the CPS to

the same datum indicat­

ed on the

charts you

are currently

using.

The navigation setup page is used to selea units of

measurement for position format, map datum, GDI

scale, and distance, speed and heading information.

The default position setting for the GPS 120 is

latitude and longitude in degrees and minutes

(hddd"mm.mmm’). You may also select degrees,

minutes and seconds (hddd“mm’ss.s"); degrees
only Giddd.ddddd"); UTM coordinates; or British,
Irish, German, Swedish or Swiss Grid formats. To

select a format:

1. M ove the field highlight to the 'position form af

field and press the Q key.

2. U sethe ▲ and '▼ keystoseieetthedesired

setting. C onhrm the setting by pressing

KEY WEST HARBOR

AND APPROACHES

FLORIDA

M ap Daium

SOUNDMOSlNfCCT

A1 MEW LONVWAlcn

The map datum field is located just below the

position format field, and comes with a WGS 84

default setting. Although 105 total map datums are
available for use (see the map datum listing in
appendix D), you should only change the datum if

you are using charts that specify a different datum
than WGS 84. To enter a different map datura;

1. M ove the field highlight to the 'datum ' field and

press then key.

2. U se the ▲ and '▼ keys to toggle through and

select the desired setting. C onfirm the setting by

pressing the B key.

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