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GPS-622F Datasheet(PDF) 5 Page - rfsolutions.ltd |
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GPS-622F Datasheet(HTML) 5 Page - rfsolutions.ltd |
5 / 17 page DS-GPS-622F-2 Sept 11 © 2010 www.rfsolutions.co.uk Page 5 GPS SMART RECEIVER WITH ANTENNA GPS-622F 2.2 2.2 2.2 2.2 Serial Serial Serial Serial Port Port Port Port Setti Setti Setti Settin n n ng g g gs s s s The default configuration within the standard GPS firmware is the Standard configuration of serial port: Supporting 9600 baud rate, 8 data bits, no parity, 1 stop bit, no flow control 2. 2. 2. 2.3 3 3 3 GPS Status Indicator GPS Status Indicator GPS Status Indicator GPS Status Indicator Non Non Non Non----Fixed mode : LED is always on Fixed mode : LED is always on Fixed mode : LED is always on Fixed mode : LED is always on Fixed mode : LED toggle every second Fixed mode : LED toggle every second Fixed mode : LED toggle every second Fixed mode : LED toggle every second 1. 1. 1. 1. Communication Specifications Communication Specifications Communication Specifications Communication Specifications Item Item Item Item Description Description Description Description Interface Full duplex serial interface Bit rate 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 Table 2: Communication specifications Table 2: Communication specifications Table 2: Communication specifications 2.6 Multi 2.6 Multi 2.6 Multi 2.6 Multi----path Mitigation path Mitigation path Mitigation 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. GPS-622F 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 |
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