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Rikaline
GPS Receiver Module
User's Guide
FirstGPS V1.0 Jun 28, 2003
Positioning Accuracy:
3m CEP (50%) or <5m CEP ((90%)
Low Power:
17mA typical -- tracking at 3.3 Volts, full power
Rikaline
14F, 171, ChengGong Rd., Sanchong City, Taipei 241, Taiwan, R.O.C
Phone: +886-2-8973-1899 Fax: +886-2-8973-1896
E-Mail:
info@rikaline.com.tw
GPS-22
International Corp.
Web: www.rikaline.com.tw
All Right Reserved
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Summary of Contents for Rikaline GPS-22
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Page 1: Gps Receiver Module
3m CEP (50%) or <5m CEP ((90%) Low Power: 17mA typical -- tracking at 3.3 Volts, full power Rikaline International Corp. 14F, 171, ChengGong Rd., Sanchong City, Taipei 241, Taiwan, R.O.C Phone: +886-2-8973-1899 Fax: +886-2-8973-1896 E-Mail: info@rikaline.com.tw All Right Reserved GPS-22 Web: www.rikaline.com.tw... -
Page 2: Table Of Contents
6.1 Products Options ……………………………………………………………………..……… 6.2 Accessories ……………………………………………………………………..…………….. 7. Warranty …………………………………………………………………………..…………….. Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual TABLE OF CONTENTS ………………………………………………………………. ……………………………………………………………………… Specifications subject to change without prior notice , 171, ChengGong Rd., Sanchong City, Taipei 241, Taiwan, R. -
Page 3: Introduction
This positioning application meets strict needs such as car navigation, mapping, surveying, agriculture and so on. Only clear view of sky and certain power supply are necessary to the unit. GPS-22 communicates with other electronic utilities via compatible dual-channel through TTL and saves critical satellite data in built–in memory backup. -
Page 4: Environmental Characteristics
2) NMEA 0183 Version 2.1 ASCII output (GGA, GLL, GSV, GSA, RMC, VTG, ZDA). 3) Real-time Differential Correction input (RTCM SC-104 message types 1, 2 and 9). Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual C (internal temperature) Q LPF... -
Page 5: Operational Characteristic
The GPS-22 utilizes initial data, such as last stored position, date, time and satellite orbital data, to achieve maximum acquisition performance. If significant inaccuracy exists in the initial data, or the orbital data is obsolete, it may take more time to achieve a navigation solution. -
Page 6: Hardware Interface
ALMRDY STY1 STY0 OSCSTOPN Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual DESCRIPTION Power and Signal Ground ON / Off command line 3.0 to 3.6 Volts DC Input Power Supply... -
Page 7: Operating Modes
GPS receiver functions are turned Down OFF, MCU clock is stopped, RTC is Mode running on the Back-up supply Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual VCC pin On\Off Pin Powered High Powered... -
Page 8: Software Interface
4. Software Interface The GPS-22 interface protocol is based on the National Marine Electronics Association's NMEA 0183 ASC Ⅱ interface specification, which is defined in NMEA 0183, Version 2.1 and the Radio Technical Commission for Maritime Services (RTCM Recommended Standards For Differential Navstar GPS Service, Version 2.1, RTCM Special Committee No.104). - Page 9 Table 4-8 contains the values for the following example: $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71 $GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41 Table 4-8 GSV Data Format Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual Units Description GLL protocol header ddmm.mmmm N=north or S=south dddmm.mmmm...
- Page 10 Speed 0.13 Units Speed Units Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual Units GSV protocol header Range 1 to 3 Range 1 to 3 Range 1 to 12 Channel 1 (Range 1 to 32)
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Page 11: Rtcm Received Data
The default communication parameters for DGPS Input are 9600 baud, 8 data bits, stop bit, and no parity. Position accuracy of less than 5 meters can be achieved with the GPS-22 by using Differential GPS (DGPS) real-time pseudo-range correction data in RTCM SC-104 format, with message types 1, 5, or 9. As using DGPS receiver with different communication parameters, GPS-22 may decode the data correctly to generate accurate messages and save them in battery-back SRAM for later computing. - Page 12 Sentence Bit# Field value Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual Units Description Proprietary NM protocol header, a-mode (S = set; R = response) xxxx Output sentence mask, hex value...
- Page 13 This is a set-only sentence. $PXEMaRT,a*hh Name Example Message ID $PXEMaRT Command Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual 0002 0004 0008 0010 0020 0100 0200...
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Page 14: Default Setting Details
PPS output: OFF 4.4.2 Receiver configuration Receiver Mode Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual S = start the FirstGPS X = shut down the FirstGPS End of message termination... -
Page 15: Application Information
Frequency range LNA Gain LNA NF Antenna and LNA total Gain Rikaline International Corp. Tel: ++886 2 8973-1899 Fax: ++886 2 8973-1896 E-Mail: info@rikaline.com.tw web: www.rikaline.com.tw GPS-22 Operating Manual Automobile DGPS Off 6.5e-6 Limit the search range during cold start. Must be larger than TCXO tolerance+stability+aging, for ex. -
Page 16: Earth Datums
56501 Connecting Cable, Screw type MCX + HFL connector + 15mm cable. 7. Warranty The GPS-22 series products are warranted to be free from defects in material and functions for one year from the date of purchase. Any failure of this product within this period under normal conditions will be replaced art no charge to the customers.
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