NorthStar 941x 사용자 설명서

Page 94

8 — Customizing the 941X

Rev. D

Different regions of the world use various models for lat/lon coordinates
on their charts, called “datum.” You should always be sure that your
941X is using the same datum as your charts.

Press the STAR key until you display the USER CUSTOMIZATION
screen, then press the NAVIGATION OPTIONS menu key. Move the
cursor down to GEODETIC DATUM and press EDIT. Use the up or
down cursor keys to scroll through the list of datums (organized alpha-
betically, as in the list below). When you come to the datum you desire,
press ENTER, or press CLEAR to leave the datum choice unchanged and
exit the edit function.

The following chart lists the datums available in your 941X:

DATUM NAME

ELLIPS.

delta

delta z

ADI_MN

ADINDAN Mean—Africa

CL1880

-166

-15

204

ADI_E

ADINDAN—Ethiopia

CL1880

-165

-11

206

ADI_MA

ADINDAN—Mali

CL1880

-123

-20

220

ADI_SE

ADINDAN—Senegal

CL1880

-128

-18

224

ADI_SU

ADINDAN—Sudan

CL1880

-161

-14

205

AFG

AFGOOYE—Somalia

KRASS

-43

-163

AIN

AIN EL ABD 1970—Bahrain Island

INTL

-150

-251

-2

ANA

ANNA 1 ASTRO 1965—Cocos Islands

AUSTR

-491

-22

435

ARC50_MN

ARC 1950 mean value

CL1880

-143

-90

-294

ARC50_B

ARC 1950—Botswana

CL1880

-138

-105

-289

ARC50_L

ARC 1950—Lesotho

CL1880

-125

-108

-295

ARC50_M

ARC 1950—Malawi

CL1880

-161

-73

-317

ARC50_S

ARC 1950—Swaziland

CL1880

-134

-105

-295

ARC50_ZR

ARC 1950—Zaire

CL1880

-169

-19

-278

ARC50_ZM

ARC 1950—Zambia

CL1880

-147

-74

-283

ARC50_ZB

ARC 1950—Zimbabwe

CL1880

-142

-96

-293

ARC60_MN

ARC-1960 mean value

CL1880

-160

-8

-300

ARC60_K

ARC 1960—Kenya

CL1880

-161

-7

-300

ARC60_T

ARC 1960—Tanzania

CL1880

-158

-12

-299

ASC

Ascension Island 1958

INTL

-207

107

ABE

Astro Beacon "E" (Pacific Isl.)

INTL

145

-272

Geodetic

Datum