GPS-610F Datasheet, PDF (5/16 Pages) rfsolutions.ltd – Low-Power High-Performance and Low-Cost 65 Channel GPS Engine Board (Flash based)

GPS RECEIVER EXT ANTENNA
GPS-610F
2.2 Serial Port Settings
The default configuration within the standard GPS firmware is the Standard configuration of
serial port:
Supporting 4800/9600 baud rate (Default Value : 9600), 8 data bits, no parity, 1 stop
bit, no flow control
2.3 Improved TTFF
In order to improve the TTFF (Time To First Fix), GPS-610F has been built with the back-up
battery (SEIKO) to support the RTC with a back-up power when no system power is available.
2.4 GPS Status Indicator
Non-Fixed mode : LED is always on
Fixed mode : LED toggle every second
6. Communication Specifications
Item
Description
Interface
Full duplex serial interface
Bit rate
4800/9600/38400/115200bps (Optional, Default 9600),
Start bit
1bit
Stop bit
1bit
Data bit
8bit
Parity
None
Transmission data
SACII NMEA0183 Ver:3.01
Update rate
1Hz
Output sentence
GGA/GSA/GSV/RMC/VTG (typ)
Table 2: Communication specifications
2.6 Multi-path Mitigation
Multipath refers to the existence of signals reflected from objects in the vicinity of a receiver's
antenna that corrupt the direct line-of-sight signals from the GPS satellites, thus degrading
the accuracy of both code-based and carrier phase–based measurements. Particularly difficult
is close-in multipath in which the reflected secondary signals arrive only slightly later (within
about 100 nanoseconds) than does the direct-path signal, having been reflected from objects
only a short distance from the receiver antenna.
GPS610F deploys the advanced multi-path detection and suppression algorithm to reduce
multipath errors, the GPS signals themselves can be designed to provide inherent resistance
to multipath errors
DS-GPS610F-1 Jul 09
©2009 www.rfsolutions.co.uk
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