1. Introduction 1.1 Overview The HOLUX GR-211 Smart GPS Receiver is a total solution GPS receiver, designed based on SiRF Star II Architecture. This positioning application meets strict needs such as car navigation, mapping, surveying, security, agriculture and so on. Only clear view of sky and certain power supply are necessary to the unit. It communicates with other electronic utilities via compatible dual-channel through RS-232 or TTL and saves critical satellite data by built–in backup memory.
Page 6
HOLUX 2) Update rate: 1 second. 3) Acquisition time Reacquisition 0.1 sec., averaged Hot start 8 sec., averaged Warm start 38 sec., averaged Cold start 45 sec., averaged 4) Position accuracy: A) Non DGPS (Differential GPS) Position 5-25 meter CEP without SA Velocity 0.1 meters/second, without SA...
The GR-211 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 If significant inaccuracy exists in the initial data, or the orbital data is obsolete, it may take more time to achieve a navigation solution.
HOLUX 3.2 Hardware Interface The GR-211 includes an antenna in a unique style waterproof gadget. Simply connect Mini Din female connector to one of the accessories linking to your notebook PC, PDA or other devices. The one-piece cigarette adapter allows you to connect GR-211 to your PDAs. Optional color, input voltage and output connector are listed and described below: 3.3 Connector...
3.4.1.2 PS2 composite connector function definition: Signal Name Ground N.C = No connection 3.4.2 Cigarette adapter and PDA connector: reference section 7.2 3.4.3 CA-USB: USB connector The USB A Type is equipped with GR-211. The function definition is as follows: Signal Name Ground...
4.2 Installation 1. Copy entire <GR-211 USB> folder from CD to hard disk. 2. Connect GR-211 USB connector to computer. While the computer automatically starts the installation program, please direct the driver to the <GR-211 USB> folder. 3. After the installation is complete, go to <Device Manager> and select <Ports (COM & LPT)> to verify if a virtual COM port <USB to Serial Port>...
Special Committee No.104, Type 1,2,9) or WAAS (in USA area) or EGNOS (in European area) 5.1 NMEA Transmitted Messages The GR-211 supported by SiRF Technology Inc. also outputs data in NMEA-0183 format as defined by the National Marine Electronics Association (NMEA), Standard.
Page 13
HOLUX 5.1.2 Geographic Position with Latitude/Longitude(GLL) Table 5-4 contains the values for the following example: $GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C Table 5-4 GLL Data Format Name Example Units Description Message ID $GPGLL GLL protocol header Latitude 3723.2475 ddmm.mmmm N/S Indicator N/S Indicator N N=north or S=south Longitude 12158.3416...
Page 14
HOLUX 5.1.4 GNSS Satellites in View (GSV) Table 5-8 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 5-8 GSV Data Format Name Example Units Description Message ID $GPGSV GSV protocol header Number of Messages Range 1 to 3...
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 GR-211 by using Differential GPS (DGPS) real-time pseudo-range correction data in RTCM SC-104 format, with message types 1,2, or 9. As using DGPS receiver with different communication parameters, GR-211 may decode the data correctly to generate accurate messages and save them in battery-back SRAM for later computing.
Page 16
HOLUX European 1950 – Eastern Regional Mean International Data16.dat European 1950 – Egypt International Data17.dat European 1950 – Finland, Norway International Data18.dat European 1950 – Greece International Data19.dat European 1950 – Iran International Data20.dat European 1950 – Italy (Sardinia) International Data21.dat...
Change Datum to WGS84, Sirfprog /Fdata58.dat –P1 –B4800 –Csh1 <Entry> After changing datum, the new datum will be kept in SRAM. If no power supplied to GR-211 for more than 30 days, user must re-set datum when power on. 7. Ordering Information 7.1 Product Options...
8. Warranty The GR-211 is 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 at no charge to...
Need help?
Do you have a question about the GR-211 and is the answer not in the manual?
Questions and answers