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Rikaline, Appendix b earth datums & output setting, B.1 setting – Rikaline CF GPS Receiver User Manual

Page 13: B.2 earth datums

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High Sensitivity GPS-6021-X6 Operating Manual

Rikaline

Rikaline

International Corp.

10F, 64, Kang-Ding Road, Taipei 108, Taiwan

Tel: ++886 2 2370 4688 Fax: ++886 2 2370 4686 E-Mail: [email protected] Web: www.rikaline.com.tw

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Appendix B Earth Datums & Output Setting

B.1 Setting

B.1.1 Manufacturing Default

Datum: WGS84.
Baud Rate: 4800.
Output: GGA, GSA, GSV, RMC.

B.1.2 Baud Rate and Output Sentences Setting


B.1.2.1 By SiRFdemo Program

1// Connect your GPS-6021-X6 to PC (through PCMCIA adapter)
2// Execute SiRFdemo.exe (Program is in the CD)
3// When “Data Source Setup” shows, select the port (COM 1, 2 or 3….) you used, click “OK”.
4// Click “Action”, select “Open Data Source”, Then you will see lots of sentences shows. All the sentences

start with $GPxxxx. This is NMEA protocol. If you do not see these sentences, please click “View”,
“Select Message”, then click “Development”. The message will appear. If it still shows nothing, then
continue below steps.

5// There is a screen “Selection of Target Receiver Software” might appear, please select “SiRFstar II”.
6// Click “Action”, Select “Switch to SiRF Protocol”. Then you will see SiRF binary and the sentences start

with #Time, shows every 4 lines and you can not see the sentences start with $GP. These sentences
are for setting or viewing the GPS receiver’s performance. If your software is using standard NMEA
protocol, please do the following:

7// Click “Action”, Select “Switch to NMEA Protocol”. You will see GGA, GSV, GSA and RMC in black and

the Baud Rate is 4800. These are the default we put inside the receiver. Please click “OK”. Then you
can use it as a standard GPS receiver. If your software uses different sentence, please choose the
sentences you need.

After above actions, the new setting will be kept in SRAM. If no power supplied to GPS-6021-X6 for more

than 30 days, user must re-set again when power on.

B.2.2.2 By other SiRF based demo program
There are a few companies or private website providing some very good demo software.

B.2 Earth Datums

The GPS-6021-X6 is built in earth datum with WGS84.

B.2.1 Built –in Earth Datums


The GPS-6021-X6 supports 219 datums. You may change it by following Change Datum step by step.
Note: dX, dY and dZ are the 3 dimension tolerance with WGS-84 (scale: meter).

Datum

dX dY dZ

Ellipsoid

Region of use

Name in GM-305

1. WGS-84

0

0

0

WGS 84

Global

WGS 1984

2. Adindan

-118 -14 218

Clarke 1880

Burkina Faso

Adindan- Burkina Faso

3. Adindan

-134 -2 210

Clarke 1880

Cameroon

Adindan- Cameroon

4. Adindan

-165 -11 206

Clarke 1880

Ethiopia

Adindan- Ethiopia

5. Adindan

-123 -20 220

Clarke 1880

Mali

Adindan- Mali

6. Adindan

-166 -15 204

Clarke 1880

Mean for Ethiopia; Sudan

Adindan-Regional Mean

7. Adindan

-128 -18 224

Clarke 1880

Senegal

Adindan- Senegal

8. Adindan

-161 -14 205

Clarke 1880

Sudan

Adindan- Sudan

9. Afgooye

-43 -163 45

Krassovsky 1940 Somalia

Afgooye- Somalia

10. Ain el Abd 1970

-150 -250 -1

International 1924 Bahrain

Ain el Abd’70- Bahrain

11. Ain el Abd 1970

-143 -236 7

International 1924 Saudi Arabia

Ain el Abd’70- Saudi
Arabia

12.

American Samoa 1962 -115 118 426

Clarke 1866

American Samoa Islands American Samoa’62

13. Anna 1 Astro 1965

-491 -22 435

Australian National Cocos Islands

Anna 1 Astro’65