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16

REB-3300 Operational Manual 

 

Units M 

meters  

Geoid Separation 

 

meters  

Units M 

meters  

Age of Diff. Corr. 

 

second Null fields when DGPS is not 

used 

Diff. Ref. Station ID 

0000 

 

 

Checksum *18 

 

 

CR

><

LF

 

 

 

End of message termination 

 

Table 3   

Position Fix Indicator 

Value Description 

Fix not available or invalid 

GPS SPS Mode, fix valid 

Differential GPS, SPS Mode, fix valid 

GPS PPS Mode, fix valid 

 

GLL-Geographic Position –Latitude/Longitude 

Table 3 contains the values of the following   

Example: $GPGLL, 3723.2475, N, 12158.3416, W, 161229.487, A*2C 

 

Table 3 

GLL Data Format 

Name Example

Units

Description 

Message ID 

$GPGLL     

GLL protocol header 

Latitude 3723.2475  ddmm.mmmm 

N/S Indicator 

 

N=north or S=south 

Longitude 12158.3416   Dddmm.mmmm 

E/W Indicator   

 

E=east or W=west 

UTC Position 

161229.487  

hhmmss.ss 

Status 

 

A=data valid or V=data not valid 

Checksum *2C 

 

 

CR

><

LF

 

 

 

End of message termination 

 

Summary of Contents for REB-3300

Page 1: ...rpose of the business discussions between supplier and RoyalTek and is covered under the terms of the applicable Non Disclosure Agreements Disclosure of this information to other parties is prohibited without the written consent of RoyalTek Prepared by RoyalTek Company LTD 8F 256 Yang Guang Street Neihu Chiu Taipei Taiwan R O C TEL 886 2 77215000 FAX 886 2 77215666 http www royaltek com contact 1 ...

Page 2: ... 5 REB 3300 TECHNIQUE SPECIFICATION 6 APPLICATION CIRCUIT 7 RECOMMENDED LAYOUT PAD 8 GPS ANTENNA SPECIFICATION 9 MECHANICAL LAYOUT 10 HARDWARE INTERFACE 11 DEFINITION OF PIN ASSIGNMENT 12 TEST SOFTWARE SPECIFICATION 14 SOFTWARE INTERFACE 15 NMEA V3 0 PROTOCOL 15 GPS RECEIVER USER S TIPS 20 MTBF ESTIMATION 21 PACKAGE SPECIFICATION AND ORDER INFORMATION 21 CONTACT INFORMATION SECTION 21 2 ...

Page 3: ... of REB 3300 gets the great performance when going though the urban canyon and foliage Product Features 12 parallel channels Operable from 3 3V 65mA continuous mode SMT type with stamp holes Pin reserved for Backup battery and RF connector TCXO design 7 I O lines GPIO available to connect 0 1 second reacquisition time Small form factor NMEA 0183 compliant protocol custom protocol Enhanced algorith...

Page 4: ...n Marine navigation Timing application Product Picture REB 3300 Pin16 Pin 15 Pin 32 Pin 1 REB 3300 Interface Board RoyalTek Evaluation Kit REV 2000 for REB 3300 Please refer to RoyalTek Evaluation Kit REV 2000 for REB 3300 Operational Manual for more information 4 ...

Page 5: ...Diagram REB 3300 engine board consists of SiRF star IIe LP chipset technology 4 8 16Mbits flash memory and proprietary software The system is described as follows a Support external active patch antenna b Support 4 8 16 Mega bits flash memory c 30 I O pins 5 ...

Page 6: ...Open sky 9 Warm start 38sec typical SSII normal version software Open sky 40sec typical SSII ES version software Open sky 35sec typical SSII XTrac version software Open sky 10 Hot start 8 sec typical SSII normal version software Open sky 18 sec typical SSII ES version software Open sky 4 sec typical SSII XTrac version software Open sky 11 Reacquisition 0 1sec typical 12 Clock drift 200Hz in 60 sec...

Page 7: ...ata bits no parity 1 stop bits Application Circuit 1 Ground Planes REB 3300 GPS receiver needs two different ground planes The GND_A pin 11 12 13 14 15 16 18 shall be connect to analog ground The GND pin 2 10 30 connect to digital ground 2 Serial Interface The Serial interface pin RXA TX1 TXB RXB is recommended to pull up 10KΩ It can increase the stability of serial data 3 Backup Battery It s reco...

Page 8: ...f active antenna The bias voltage will through RF_IN pin to provide active antenna bias voltage from Vcc_RF pin If your bias voltage of active antenna isn t 3 0V you can input bias voltage to V_ANT_IN pin pin 19 And input bias voltage of you need It can open if you use passive antenna The input bias voltage will through RF_IN pin to provide active antenna bias voltage from V_ANT_IN pin The maximum...

Page 9: ...0 Operational Manual GPS Antenna Specification Recommendation Active patch antenna Receiving freq 1575 42 1 032MHz Polarization RHCP Output impedance 50 Ohm 2 stage LNA Connection surface mounted on main PCB 9 ...

Page 10: ...echanical Layout 3 2 1 NSB0000A PSB 01 1T0SBN26 1T0SBN25 4 1 3 2 項次 料 號 REB 3300 M PCB SMD SHIELD RF M PCB REB 3300 V SHIELD LNA 品 名 備 註 10 Length 25 4 mm Width 25 4 mm Thickness 3mm 2 Weight 3 5g Mechanical requirements 1 REB 3300 ...

Page 11: ...l purpose I O V V V V VCC V V VCC V V OL OH IL IH 4 0 4 2 3 0 7 0 9 RF_ON O Indicates power state of RF part V V V V OL OH 0 85 2 10 GND G Digital Ground Digital Reference Ground 11 16 GND_A G Analog Ground Analog Reference Ground 17 RF_IN I GPS Signal input 50 Ω 1 57542GHz 18 GND_A G Analog Ground Analog Reference Ground 19 V_ANT_IN I Active Antenna Bias voltage Receiving DC power supply for acti...

Page 12: ...upply input pin It provides voltage to module GND GND provides the ground for digital part Bootselect Set this pin to high for programming flash RXA This is the main receiver channel and is used to receive software commands to the board from SIRFdemo software or from user written software PS Pull up if not used RXB This is the auxiliary receiving channel and is used to input differential correctio...

Page 13: ...ery V_BAT This is the battery backup input that powers the SRAM and RTC when main power is removed Typical current draw is 10uA Without an external backup battery or super cap the TMP will execute a cold start after every power on To achieve the faster start up offered by a hot or warm start either a battery backup must be connected or a super cap installed To maximize battery lifetime the battery...

Page 14: ...ftware Specification No Function Specification 1 Clock offset 88000Hz VAL 104000Hz 2 Clock Drift VAL 200Hz 3 C No Hi Power Mean VAL 38dB 4 C No Hi Power Sigma VAL 2dB 5 Bit Sync VAL 5 Sec 6 Frame Sync VAL 28 Sec 7 Phase Error VAL 0 22 14 ...

Page 15: ... satellites GSV GNSS satellites in view RMC Recommended minimum specific GNSS data VTG Course over ground and ground speed GGA Global Positioning System Fixed Data Table 2 contains the values of the following example GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 Table 2 GGA Data Format Name Example Units Description Message ID GPGGA GGA protocol header UTC Position 161229 487 hh...

Page 16: ... GPS SPS Mode fix valid 3 GPS PPS Mode fix valid GLL Geographic Position Latitude Longitude Table 3 contains the values of the following Example GPGLL 3723 2475 N 12158 3416 W 161229 487 A 2C Table 3 GLL Data Format Name Example Units Description Message ID GPGLL GLL protocol header Latitude 3723 2475 ddmm mmmm N S Indicator N N north or S south Longitude 12158 3416 Dddmm mmmm E W Indicator W E ea...

Page 17: ...ed Sv on Channel 12 PDOP 1 8 Position Dilution of Precision HDOP 1 0 Horizontal Dilution of Precision VDOP 1 5 Vertical Dilution of Precision Checksum 33 CR LF End of message termination Table 4 1 Mode 1 Value Description 1 Fix not available 2 2D 3 3D Table 4 2 Mode 2 Value Description M Manual forced to operate in 2D or 3D mode A Automatic allowed to automatically switch 2D 3D GSV GNSS Satellites...

Page 18: ...nel 4 True Range 0 to 359 SNR C No 42 dBHz Range 0 to 99 null when not tracking Checksum 71 CR LF End of message termination 1 Depending on the number of satellites tracked multiple messages of GSV data may be required RMC Recommended Minimum Specific GNSS Data Table 6 contains the values of the following example GPRMC 161229 487 A 3723 2475 N 12158 3416 W 0 13 309 62 120598 10 Table 6 GGA Data Fo...

Page 19: ...e values of the following example GPVTG 309 62 T M 0 13 N 0 2 K 6E Table 7 VTG Data Format Name Example Units Description Message ID GPVTG VTG protocol header Course 309 62 degrees Measured heading Reference T True Course degrees Measured heading Reference M Magnetic Speed 0 13 knots Measured horizontal speed Units N Knots Speed 0 2 km hr Measured horizontal speed Units K Kilometer per hour Checks...

Page 20: ... Among high buildings d Under bridges or tunnels e Under high voltage cables or near by radio wave sources such as mobile phone base stations f Bad or heavy cloudy weather 4 If the satellite signals can not be locked or encounter receiving problem while in the urban area the following steps are suggested a Please plug the external active antenna into GPS receiver and put the antenna on outdoor or ...

Page 21: ...Taiwan R O C l x r www royaltek com contact evision History 3 S W Version Package 1 2 label REB 3300 0 Standard 0 Customize 0 Standard 1 ES 2 XTRAC 4 RMC 9600 Protocol 1 GGA GSA GSV 5 RMC 4800 3 GGA GSA GSV 5 RMC 57600 C Contact sales royaltek com Headquarter Ad Te Fa Web Site http www ress 8F 256 Y 886 2 77215000 886 277215666 oyaltek com Web Site Customer Service http R Copyright 2004 RoyalTek C...

Page 22: ...S Receiver Module Doc Type User Manual Revision Number Date Author Change notice 0 1 7 Sep 2004 en B Initial version 0 5 15 Oct 2004 Ben First release 1 0 24 Nov 2004 Ben Application circuit package antenna specification Copyright 2004 RoyalTek Company Ltd ...

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