Global Sat ER-506 Instruction Manual

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GLOBALSAT GPS Module

Hardware Data Sheet

Product No : ER-506

User Manual Version 1.1

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 : servic[email protected].tw

Website: www.globalsat.com.tw

Issue Date

2013/10/08

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ER-506

High Performance GPS Module

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Product Description

ER-506 GPS module features high sensitivity, low power and ultra small form factor. This GPS

module is powered by SiRF Star IV, it can provide you with superior sensitivity and performance

even in urban canyon and dense foliage environment. With SiRF CGEE (Client Generated

Extended Ephemeris) technology, it predicts satellite positions for up to 3 days and delivers

CGEE-start time of less than 15 seconds under most conditions, without any network assistance.

Besides, MicroPower Mode allows GPS module to stay in a hot-start condition nearly continuously

while consuming very little power. ER-506 is suitable for the following applications:

Automotive navigation

Fleet management

Marine navigation

Product Features

SiRF Star IV high performance GPS Chipset

Very high sensitivity (Tracking Sensitivity: -163 dBm)

Extremely fast TTFF (Time To First Fix) at low signal level

Support RS-232 interface.

Built-in LNA(with in CHIP)

Compact size (30.0mm x 30.0 mm x 10.7mm) suitable for space-sensitive application

Support NMEA 0183 V3.0 (GGA, GSA, GSV, RMC, VTG, GLL, ZDA)

Support OSP protocol

Support SBAS (WASS, EGNOS, MSAS, GAGAN)

ER-506

High Performance GPS Module

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Product Pin Description

PIN Number(s)

Name Type

Description Note

1,5 GND P Ground.

2 VIN P This is the main power supply to the engine

board. (4.5Vdc to 6.5Vdc)

3 RXD I

This is the main receive channel for

receiving software commands to the engine

board from SiRFdemo software or from user

written software. Baud rate based on flash

memory setting.

4 TXD O

This is the main transmits channel for

outputting navigation and measurement

data to user’s navigation software or user

written software.

6 Directive O This pin indicates the GPS states.

Electrical Specification

Absolute Maximums Ratings

Parameter Min. Typ. Max. Conditions Unit

POWER Supply

Main power supply(VCC) 4.5 5.0 6.5 V

45 50 55 GPS is not 3D Fixed.

Main power supply Current 33 34 38 GPS is 3D Fixed. mA

Input Impendance 50 Ω

Operating Frequency 1.575 Ghz

ER-506

High Performance GPS Module

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DC Electrical characteristics

Parameter Symbol

Min. Typ. Max. Conditions Units

Directive

Low Level Output Voltage VOL 0.4 V

Directive

High Level Output Voltage

VOH 3.3 V

-232 Low Level Output Voltage VI L -6 V

-232 High Level Output Voltage VI H 6 V

Receiver Performance

Sensitivity

Tracking :

Autonomous acquisition :

-163dBm

-160 dBm

< 35s

Cold Start – Autonomous <15s (with CGEE)

< 35s

Warm Start – Autonomous2

< 15s(with CGEE)

Time-To-First-Fix1

Hot Start – Autonomous3 < 1s

Horizontal Position Accuracy4

Autonomous < 2.5m

Velocity Accuracy5

Speed

Heading

< 0.01 m/s

< 0.01 degrees

Reacquisition

0.1 second, average

Update Rate

1 Sec / 5 Sec

Maximum Altitude

< 18,000 meter

Maximum Velocity

< 515 meter/ second

Maximum Acceleration

< 4G

<Note>

1. 50% -130dBm Fu 0.5ppm Tu ±2s Pu 30Km

2. Commanded Warm START

3. Commanded Hot START

4. 50% 24hr static, -130dBm

5. 50% @ 30m/s

Environmental Characteristics

Parameter Min Typ Max Unit

Humidity Range 5 95 % non-condensing

Operation Temperature -40 25 85 ℃

Storage Temperature -40 85 ℃

ER-506

High Performance GPS Module

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Physical Characteristic

OPERATING Description

GND

This is Ground pin for the baseband circuit.

VIN

This is the main power supply to the engine board. (4.5Vdc to 6.5Vdc)

RXD

This is the main channel for receiving software commands from SiRFdemo software or from your

proprietary software.

TXD

This is the main transmits channel for outputting navigation and measurement data to user’s

navigation software or user written software.

Directive

This pin exports signal to indicate the GPS states.

GPS unfix: always low level.

GPS fixed: one second high level, one second low level.

LED

LED indicator for GPS fix or not fix

LEDOFF: Receiver switch off

LED ON: No fixed, Signal searching

LED Flashing: Position Fixed

ER-506

High Performance GPS Module

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SOFTWARE COMMAND

NMEA Output Command

GGA - Global Positioning System Fixed Data

Note – Fields marked in italic red apply only to NMEA version 2.3 (and later) in this NMEA

message description

Table B-2 contains the values for the following example:

$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M,-34.2,M,,0000*18

Table B-2 GGA Data Format

Name Example Units Description

Message ID $GPGGA GGA protocol header

UTC Time 161229.487

hhmmss.sss

Latitude 3723.2475 ddmm.mmmm

N/S Indicator 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 Precision

MSL Altitude 9.0 meters

Units M meters

Geoid Separation1-34.2 meters Geoid-to-ellipsoid separation.

Ellipsoid altitude=MSL Altitude + Geoid

Separation

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 B-3 Position Fix Indicator

Value Description

0 Fix not available or invalid

1 GPS SPS Mode, fix valid

2 Differential GPS, SPS Mode , fix valid

3 Not supported

6 Dead Reckoning Mode, fix valid

Note:

A valid status is derived from all the parameters set in the software. This includes the minimum

ER-506

High Performance GPS Module

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number of satellites required, any DOP mask setting, presence of DGPS corrections, etc. If the

default or current software setting requires that a factor is met, then if that factor is not met the

solution will be marked as invalid.

GLL - Geographic Position-Latitude/Longitude

Note – Fields marked in italic red apply only to NMEA version 2.3 (and later) in this NMEA

message description

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 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=east or W=west

UTC Position 161229.487 hhmmss.sss

Status A A=data valid or V=data not valid

Mode A A=Autonomous, D=DGPS,

E=DR

N=Output Data Not Valid

R= Coarse Position1

S=Simulator

Checksum *41

<CR><LF> End of message termination

1. Position was calculated based on one or more of the SVs having their states derived from

almanac parameters, as opposed to ephemerides.

ER-506

High Performance GPS Module

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GSA - GNSS DOP and Active Satellites

Table B-5 contains the values for the following example:

$GPGSA,A,3,07,02,26,27,09,04,15,,,,,,1.8,1.0,1.5*33

Table B-5 GSA Data Format

Name Example Units Description

Message ID $GPGSA GSA protocol header

Mode 1 A See Table B-6

Mode 2 3 See Table B-7

Satellite Used107 Sv on Channel 1

Satellite Used102 Sv on Channel 2

…..

Satellite Used1Sv on Channel 12

PDOP21.8 Position dilution of Precision

HDOP21.0 Horizontal dilution of Precision

VDOP21.5 Vertical dilution of Precision

Checksum *33

<CR><LF> End of message termination

1. Satellite used in solution.

2. Maximum DOP value reported is 50. When 50 is reported, the actual DOP may be much larger.

Table B-6 Mode1

Value Description

M Manual-forced to operate in 2D or 3D mode

A 2Dautomatic-

allowed to automatically switch 2D/3D

Table B-7 Mode 2

Value Description

1 Fix Not Available

2 2D (<4 SVs used)

3 3D (>3 SVs used)

ER-506

High Performance GPS Module

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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 Messages1

2 Range 1 to 3

Message Number1 1 Range 1 to 3

Satellites in View1 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.

ER-506

High Performance GPS Module

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RMC - Recommended Minimum Specific GNSS Data

Note – Fields marked in italic red apply only to NMEA version 2.3 (and later) in this NMEA

message description

Table B-9 contains the values for the following example:

$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598,,,A*10

Table B-9 RMC Data Format

Name Example Units Description

Message ID $GPRMC RMC protocol header

UTC Time 161229.487 hhmmss.sss

Status1A A=data valid or V=data not valid

Latitude 3723.2475 ddmm.mmmm

N/S Indicator N N=north or S=south

Longitude 12158.3416 dddmm.mmmm

E/W Indicator W E=east or W=west

Speed Over Ground 0.13 knots

Course Over Ground

309.62 degrees

True

Date 120598 ddmmyy

Magnetic Variation2degrees 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

Checksum *10

<CR><LF> End of message termination

1. A valid status is derived from all the parameters set in the software. This includes the

minimum number of satellites required, any DOP mask setting, presence of DGPS

corrections, etc. If the default or current software setting requires that a factor is met, then if

that factor is not met the solution will be marked as invalid.

2. SiRF Technology Inc. does not support magnetic declination. All “course over ground” data

are geodetic WGS84 directions relative to true North.

3. Position was calculated based on one or more of the SVs having their states derived from

almanac parameters, as opposed to ephemerides.

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