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Sirf sirfstart 3 gps evaluation receiver
The SiRFstarIII Evaluation Kit (EVK) is the ideal platform to begin testing the variety of functions available to the SiRFstarIII chipset. Representing the functionality of typical GPS receivers from organisations such as Navman and Leadtek, the EVK allows manipulation of key features and access to all interfaces of a GSC3f module solution. The benefit is to arrive at the best possible configuration for the desired application, without having to request multiple configuration changes due to the relatively limited interfacing associated with some module products. The kit comes complete with power supply, serial cable, USB cable, antenna, integrated lithium-ion batteries and a CD containing software and documentation.
The SiRFstarIII platform is the latest offering from SiRF technologies. Capable of using satellites with a carrier to noise of 13dBHz and with 200,000 time/frequency search channels (correlators); the SiRFstarIII will work where traditional GPS systems cannot. combined with the SiRFLoc aiding software, this GPS solution can provide a position fix from cold start in a second (GSM aided).
Features available in the SiRFstarIII EVK with GSW3 software
* Acquisition Accelerator: Improves cold starts and time-to-first-fix.
* SnapLock Acquisition: Reacquires satellites within 100 ms if a signal is lost.
* SnapStart: Obtains positions in less time when the receiver is powered on.
* FoliageLock: Improves positioning performance and satellite tracking ability in difficult environments such as dense tree coverage.
* Adaptive TricklePower: Intelligently switches between TricklePower and full power depending on the current GPS signal level.
* SingleSat Positioning: Provides additional fixes in an urban canyon and dense foliage environments.
* UART Pause: Saves power by idling the UART s when they are not in use.
* Dual Multipath Rejection: Improves position accuracy through enhanced multipath rejection.
* Almanac to Flash: Improves cold start times by storing the most recent almanac to flash memory.
* Low Signal Acquisition: Acquires satellites and continues tracking in extremely low signal environments.
* Low Signal Navigation: Continues navigating in extremely low signal environments.
* SiRF Binary Protocol: The standard interface protocol developed and used by SiRF Technology
* NMEA Protocol: The standard ASCII based protocol used by most GPS applications
* 1 PPS: A timing signal generated every second on the second
A two way switch that enables or disables the RS232 Ready To Send command. This is required if a Time Transfer Board (aided solution) is being used with the Evaluation Receiver.
This is a three-position switch that is used to place the receiver into internal boot mode for flash memory reprogramming.
The reset button is used to reset the GPS receiver.
Indicates whether data is being transmitted through COM A.
Indicates whether data is being received through COM A
Indicates when 1PPS pulses are being transmitted through the 1PPS output.
Shows when power is being applied to the receiver and is switched on.
Switches the receiver on or off.
Power input to allow charging of internal batteries and for operation of the Evaluation Receiver. Required input is 9 - 24 Volts. Center pin is positive.
Standard RS232 port for receiver communication and flash reprogramming. RJ45 connector used. If the USB port is connected, then the USB port will operate as Com A and no data with pass through the RS232 port.
Standard RS232 port for receiver communication and flash reprogramming. RJ45 connector used.
USB port for receiver communication. This port will operate as COM A if connected.
Outputs a 1PPS signal on every GPS second. The signal is only output when the receiver is navigating. The 1PPS signal is typically used to synchronize external instruments.
This is an accessory header that can be used for other applications such as SiRFLoc or SiRFDRive.
Input for a GPS signal from a GPS antenna. The SiRFstarIII Evaluation Receiver has been designed to work with a 3V active antenna. If the provided antenna is not used, you must ensure that the used antenna is a 3V active antenna.
The EVK comes complete with a software and documentation CD to enable full evaluation of SiRFstarIII.
Provide a graphical display of Live GPS data from any Windows PC
A tool that allows the analysis of recorded GPS data including generation of graphs and charts
Example of SiRFDemo data display.
