SiRFstarIII is a range of

high sensitivity GPS A satellite navigation device (satnav device) is a user equipment that uses one or more of several global navigation satellite systems (GNSS) to calculate the device's geographical position and provide navigational advice. Depending on the s ...

microcontroller A microcontroller (MCU for ''microcontroller unit'', often also MC, UC, or μC) is a small computer on a single VLSI integrated circuit (IC) chip. A microcontroller contains one or more CPUs (processor cores) along with memory and programmable i ...

chips manufactured by SiRF Technology. GPS microcontroller chips interpret signals from

GPS The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of t ...

satellites and determine the position of the GPS receiver. It was announced in 2004.

Features

SiRFstarIII features:SiRFstarIII GSC3e/LP & GSC3f/LP Product Overview.
SIRF.com. February 2007, Rev. 1.2 * A 20-channel receiver, which can process the signals of all visible GPS and

WAAS The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essential ...

satellites simultaneously. * Power consumption of 62 mW during continuous operation. *

Assisted GPS Assisted GNSS (A-GNSS) is a GNSS augmentation system that often significantly improves the startup performance—i.e., time-to-first-fix (TTFF)—of a global navigation satellite system (GNSS). A-GNSS works by providing the necessary data to the ...

client capability can reduce TTFF to less than one second. * Receiver sensitivity of -159 dBm while tracking. * SBAS (

, MSAS,

EGNOS The European Geostationary Navigation Overlay Service (EGNOS) is a satellite-based augmentation system (SBAS) developed by the European Space Agency and EUROCONTROL on behalf of the European Commission. Currently, it supplements the GPS by rep ...

) support

References

External links

SiRFstarIII product web page

SiRFstarIII
OpenStreetMap {{Satellite navigation Microcontrollers Global Positioning System