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Xtrac High Sensitivity GPS-6021-X6 Operating Manual
Rikaline
Rikaline International Corp. 14F, 171, Chen-Gong Road, SanChung City, Taipei 241, Taiwan
Tel: ++886 2 8973 1899 Fax: ++886 2 8973 1896 E-Mail: info@rikaline.com.tw 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
Datum
dX dY dZ
Ellipsoid Region of use Name in GM-305
1. WGS-84
00 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