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2012/7/30       

 

- 13 -

 

 

 

GSV - GNSS Satellites in View 

Table B-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 B-8 GSV Data Format 

Name 

Example 

Units 

Description 

Message ID 

$GPGSV   

GSV protocol header 

Number of Messages

 

Range 1 to 3 

Message Number

 

Range 1 to 3 

Satellites in View

07 

 

 

Satellite ID 

07 

 

Channel 1(Range 1 to 32) 

Elevation 

79 

degrees  Channel 1(Maximum90) 

Azimuth 

048 

degrees  Channel 1(True, Range 0 to 359) 

SNR(C/No) 

42 

dBHz 

Range 0 to 99,null when not tracking 

……. 

 

 

……. 

Satellite ID 

27 

 

Channel 4 (Range 1 to 32) 

Elevation 

27 

Degrees  Channel 4(Maximum90) 

Azimuth 

138 

Degrees  Channel 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. In some software versions, the maximum number of satellites reported as visible is 

limited to 12, even though more may be visible. 

Summary of Contents for EB-5631RE

Page 1: ...EB 5631RE Version 1 2 GlobalSat Technology Corporation 16F No 186 Jian Yi Road Chung Ho City Taipei Hsien 235 Taiwan Tel 886 2 8226 3799 Fax 886 2 8226 3899 E mail service globalsat com tw Website ww...

Page 2: ...ly while consuming very little power EB 5631RE is suitable for the following applications Automotive navigation Personal positioning Fleet management Mobile phone navigation Marine navigation Product...

Page 3: ...input is low active 18 GPIO I O User can use this I O pin for special functions For example control LED 1 20 TIMEMARK O One pulse per second output 1PPS 25 ON_OFF I ON_OFF pin is used to command the...

Page 4: ...KA only Hibernate or Standby mode and requires no more than 60 A of current on the VIO_18 input A high on this output indicates that the EB 5631RE is in operational mode requiring an external regulat...

Page 5: ...in Receiver Performance Sensitivity Tracking Autonomous acquisition 163dBm 160 dBm Time To First Fix1 Cold Start Autonomous 35s 15s with CGEE Warm Start Autonomous2 35s 15s with CGEE Hot Start Autonom...

Page 6: ...Characteristics Parameter Min Typ Max Unit Humidity Range 5 95 non condensing Operation Temperature 40 85 Storage Temperature 40 85 Physical Characteristic Unit mm Type 36 pin stamp holes Dimensions 1...

Page 7: ...CC 11 GND 12 RESET 13 GND 14 GND 15 ECLK 16 GND 17 GPIO 18 GND 19 TIMEMAEK 20 GND 21 GND 22 GND 23 GND 24 ON_OFF 25 GND 26 WAKE_UP 27 GND 28 GND 29 TXD 30 RXD 31 DR_I2C_DIO 32 GND 33 DR_I2C_CLK 34 GND...

Page 8: ...le control LED and can be used External Interrupts If don t use this just NC 5 WAKE_UP EB 5631RE power on WAKE_UP will output 1 8V 6 ON_OFF This pin is controlled EB 5631RE power on If EB 5631RE want...

Page 9: ...his is not available in Trickle Power mode If do not use it Just NC ON_OFF The ON_OFF pin commands the EB 5631RE ON or OFF There are multiple methods of connecting this pin for different applications...

Page 10: ...ator N N north or S south Longitude 12158 3416 dddmm mmmm E W Indicator W E east or W west Position Fix Indicator 1 See Table B 3 Satellites Used 07 Range 0 to 12 HDOP 1 0 Horizontal Dilution of Preci...

Page 11: ...cription Table B 4 contains the values for the following example GPGLL 3723 2475 N 12158 3416 W 161229 487 A A 41 Table B 4 GLL Data Format Name Example Units Description Message ID GPGLL GLL protocol...

Page 12: ...Channel 2 Satellite Used1 Sv on Channel 12 PDOP2 1 8 Position dilution of Precision HDOP2 1 0 Horizontal dilution of Precision VDOP2 1 5 Vertical dilution of Precision Checksum 33 CR LF End of messag...

Page 13: ...hannel 1 Range 1 to 32 Elevation 79 degrees Channel 1 Maximum90 Azimuth 048 degrees Channel 1 True Range 0 to 359 SNR C No 42 dBHz Range 0 to 99 null when not tracking Satellite ID 27 Channel 4 Range...

Page 14: ...egrees True Date 120598 ddmmyy Magnetic Variation2 degrees E east or W west East West Indicator2 E E east Mode A A Autonomous D DGPS E DR N Output Data Not Valid R Coarse Position3 S Simulator Checksu...

Page 15: ...Reference T True Course degrees Measured heading Reference M Magnetic1 Speed 0 13 knots Measured horizontal speed Units N Knots Speed 0 2 Km hr Measured horizontal speed Units K Kilometers per hour M...

Page 16: ...4 10 2003 4F CR LF Table B 11 ZDA Data Format Name Example Unit Description Message ID GPZDA ZDA protocol header UTC Time 181813 hhmmss The UTC time units are hh UTC hours from 00 to 23 mm UTC minutes...

Page 17: ...PSRF100 0 9600 8 1 0 0C CR LF Example 2 Switch to User1 protocol at 38400 8 N 1 PSRF100 4 38400 8 1 0 38 CR LF Checksum Field The absolute value calculated by exclusive OR the 8 data bits of each char...

Page 18: ...cing the number of active channels UBYTE ResetCfg bit mask 0 01 Data Valid warm hot start 1 0 02 clear ephemeris warm start 1 0 04 clear memory Cold start 1 UBYTE Example Start using known position an...

Page 19: ...EA message GGA GLL GSA GSV RMC VTG Using this command message standard NMEA message may be polled once or setup for periodic output Checksums may also be enabled or disabled depending on the needs of...

Page 20: ...a valid LLA Navigation Initialization command is received the receiver will restart using the input parameters as a basis for satellite selection and acquisition Format PSRF104 Lat Lon Alt ClkOffset...

Page 21: ...SRF105 1 3E Example Debug Off PSRF105 0 3F G Select Datum ID 106 Selection of datum to be used for coordinate Transformations GPS receivers perform initial position and velocity calculations using an...

Page 22: ...analog via external active antenna It has to be a controlled impedance trace at 50ohm Do not place the RF traces close to the other signal path and not routing it on the top layer Keep the RF traces a...

Page 23: ...mended Reflow Profile Pre heating temperature 150 10 Pre heating time 90 30 sec Heating temperature 235 5 Heating time 10 1 sec Peak temperature must not exceed 240 and the duration of over 200 should...

Page 24: ...GLL GSA and RMC Output rate is 1 message per 1 second GSV rate is 1 message per 5 second 1PPS output 200mS EB 5631RJ EB 5631RC default is close Static Mode and SBAS B R setting 9600 NMEA output is GG...

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