USGlobalsat EM-406a User Manual
EM-406a
Version 1.4.1
GPS Engine Board
EM-406a
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
service@globalsat.com.tw
www.globalsat.com.tw
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USGlobalSat, Inc.
14740 Yorba Court, Chino, CA 91710
Tel: 909.597.8525 / Fax: 909.597.8532
oe
m@usglobalsat.com
www.usglobalsat.com
Specifications are subject to be changed without notice.
EM-406a
Version 1.4.1
1. Product Information
Product Part I.D. EM-406a
Product Description
The EM-406a GPS engine board is low cost but maintains high reliability and accuracy making it an
ideal choice for integration with OEM/ODM systems. The EM-406a features an integrated patch
antenna for complete implementation.
Product Features
9 SiRF Star III high performance GPS chipset
9 Very high sensitivity (Tracking Sensitivity: -159dBm)
9 Extremely fast TTFF (Time To First Fix) at low signal levels
9 Supports the NMEA 0183 data protocol
9 Built-in SuperCap to maintain system data for rapid satellite acquisition
9 Built-in patch antenna
9 Foliage Lock for weak signal tracking
9 Compact in size
9 All-in-view 20-channel parallel processing
9 Snap Lock 100ms re-acquisition time
9 Superior urban canyon performance
9 WAAS / EGNOS /MSAS support
9 RoHS compliant
Product Specifications
GPS Receiver
Chipset SiRF Star III/LP Single
Frequency L1, 1575.42 MHz
Code 1.023 MHz chip rate
Protocol Electrical Level: TTL level,
Channels 20
Output Voltage Level: 0V~2.85V
Baud Rate: 4800 bps
Output Message: NMEA 0183 GGA, GSA,
GSV, RMC (VTG, GLL optional)
Specifications are subject to be changed without notice.
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EM-406a
Sensitivity -159dBm
Cold Start 42 seconds average
Warm Start 38 seconds average
Hot Start 8 second average
Reacquisition 0.1 second average
Accuracy Position: 10 meters, 2D RMS
5 meters, 2D RMS, WAAS enabled
Velocity: 0.1 ms
Time: 1µs synchronized to GPS time
Maximum Altitude 18,000 meters (60,000 feet) max
Maximum Velocity 515 meter/second (1000 knots) max
Maximum Acceleration 4G
Datum WGS-84
Jerk Limit 20m/sec **3
Version 1.4.1
Interface
I/O Connector Type
External Antenna Port
Physical Characteristic
Dimensions 1.2” x 1.2” x 0.4” (30mm x 30mm x 10.5mm)
DC Characteristics
Power Supply 4.5V~6.5V DC Input
Backup Voltage +2.5V to +3.6V
Power Consumption 44mA (Continuous Mode)
25mA (Trickle Power Mode)
Backup Current 10uA typical
Environmental Range
Humidity Range 5% to 95% non-condensing
Operation Temperature -40F to +176F (-40C to 85C)
Differences between the EM-406 and EM-406a:
a.) RoHS lead-free
b.) 1 PPS added to pin #6
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Specifications are subject to be changed without notice.
2. Technical Information
Physical Characteristics
EM-406a
Version 1.4.1
Digi-Key Crimp Pin #455-1561-1-ND (part number #455-1561-2-ND is the tape & reel format)
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Specifications are subject to be changed without notice.
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